corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
14197986 | cs/9811024 | 1998-11-13 | The Essence of Constraint Propagation | We show that several constraint propagation algorithms (also called (local) consistency, consistency enforcing, Waltz, filtering or narrowing algorithms) are instances of algorithms that deal with chaotic iteration. To this end we propose a simple abstract framework that allows us to classify and compare these algorith... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10329404 | quant-ph/9811036 | 1998-11-15 | Non-linear operations in quantum information theory | Quantum information theory is used to analize various non-linear operations on quantum states. The universal disentanglement machine is shown to be impossible, and partial (negative) results are obtained in the state-dependent case. The efficiency of the transformation of non-orthogonal states into orthogonal ones is d... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d terno_1",
"name": "Daniel [\"R.\"] Terno",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
16878926 | cond-mat/9811220 | 1998-11-16 | A Gallavotti-Cohen Type Symmetry in the Large Deviation Functional for Stochastic Dynamics | We extend the work of Kurchan on the Gallavotti-Cohen fluctuation theorem, which yields a symmetry property of the large deviation function, to general Markov processes. These include jump processes describing the evolution of stochastic lattice gases driven in the bulk or through particle reservoirs, general diffusive... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13986135 | hep-th/9811167 | 1998-11-17 | Branes for Higgs phases and exact conformal field theories | We consider multicenter supergravity solutions corresponding to Higgs phases of supersymmetric Yang-Mills theories with Z_N symmetric vacua. In certain energy regimes, we find a description in terms of a generalized wormhole solution that corresponds to the SL(2,R)/U(1) \times SU(2)/U(1) exact conformal field theory. W... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
122560398 | hep-ex/9811029 | 1998-11-17 | Search for High Mass Photon Pairs in p-pbar --> gamma-gamma-jet-jet Events at sqrt(s)=1.8 TeV | A search has been carried out for events in the channel p-barp --> gamma gamma jet jet. Such a signature can characterize the production of a non-standard Higgs boson together with a W or Z boson. We refer to this non-standard Higgs, having standard model couplings to vector bosons but no coupling to fermions, as a "bo... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b abbott_2",
"name": "B. Abbott",
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},
{
"author_id": "m abolins_1",
"name": "Maris [\"A.\"] Abolins",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
13600601 | cond-mat/9811264 | 1998-11-18 | Planar lattice gases with nearest-neighbour exclusion | We discuss the hard-hexagon and hard-square problems, as well as the corresponding problem on the honeycomb lattice. The case when the activity is unity is of interest to combinatorialists, being the problem of counting binary matrices with no two adjacent 1's. For this case we use the powerful corner transfer matrix m... | [
"cond-mat.stat-mech",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15815302 | astro-ph/9811308 | 1998-11-19 | Formation of Primordial Protostars | The evolution of collapsing metal free protostellar clouds is investigated for various masses and initial conditions. We perform hydrodynamical calculations for spherically symmetric clouds taking account of radiative transfer of the molecular hydrogen lines and the continuum, as well as of chemistry of the molecular h... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4410963 | astro-ph/9811318 | 1998-11-19 | Coexisting conical bipolar and equatorial outflows from a high-mass protostar | The BN/KL region in the Orion molecular cloud is an archetype in the study of the formation of stars much more massive than the Sun. This region contains luminous young stars and protostars, but it is difficult to study because of overlying dust and gas. Our basic expectations are shaped to some extent by the present t... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119398366 | cond-mat/9811294 | 1998-11-19 | Metastable states and information propagation in a 1D array of locally-coupled bistable cells | We study the effect of metastable states on the relaxation process (and hence information propagation) in locally coupled and boundary-driven structures. We first give a general argument to show that metastable states are inevitable even in the simplest of structures, a wire. At finite temperatures, the relaxation mech... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m anantram_1",
"name": "M. [\"P.\"] Anantram",
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},
{
"author_id": "v roychowdhury_1",
"name": "Vwani [\"P.\"] Roychowdhury",
"publication_history": null,
"h_index": null... | null |
8947331 | cond-mat/9811287 | 1998-11-19 | Avalanche and spreading exponents in systems with absorbing states | We present generic scaling laws relating spreading critical exponents and avalanche exponents (in the sense of self-organized criticality) in general systems with absorbing states. Using these scaling laws we present a collection of the state-of-the-art exponents for directed percolation, dynamical percolation and othe... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10722101 | quant-ph/9811052 | 1998-11-20 | Quantum codes on a lattice with boundary | A new type of local-check additive quantum code is presented. Qubits are associated with edges of a 2-dimensional lattice whereas the stabilizer operators correspond to the faces and the vertices. The boundary of the lattice consists of alternating pieces with two different types of boundary conditions. Logical operato... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18449887 | astro-ph/9811323 | 1998-11-20 | Pulsar Spin-up, Kinematics, and the Birthrate of Neutron Star Binaries | From considerations of spin evolution and kinematics in the galactic potential, we argue that the pulsars B1913+16, B1534+12, and B2127+11C may be younger than previously assumed, and we find that a lower bound on the formation and merger rate of close double neutron star binaries is $10^{-6.7} f_b^{-1} f_d^{-1}$ yr$^{... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12911457 | astro-ph/9811352 | 1998-11-22 | K-Band Spectra and Narrowband Photometry of DENIS Field Brown Dwarfs | Infrared spectra at 1.9-2.5 micron and narrowband photometry of three low-mass objects, DENIS-P J0205.4-1159, J1058.7-1547, and J1228.2-1547, are presented. As shown previously by Delfosse et al. (1997, AA, 327, L25), DENIS-P J0205.4-1159 shows an absorption feature at 2.2 microns. We attribute this absorption to H_2. ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13935066 | astro-ph/9811362 | 1998-11-23 | Formation and Evolution of Galactic Halos in Clusters of Galaxies | We investigate effects of time evolution of a rich cluster of galaxies on its member galactic halos in the standard cold dark matter (SCDM) universe using high resolution N-body simulations. We identify several hundred galactic halos within virial radius of our simulated cluster. We also find that a large number of hal... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13940751 | gr-qc/9811084 | 1998-11-24 | A class of quasi-linear equations in coframe gravity | We have shown recently that the gravity field phenomena can be described by a traceless part of the wave-type field equation. This is an essentially non-Einsteinian gravity model. It has an exact spherically-symmetric static solution, that yields to the Yilmaz-Rosen metric. This metric is very close to the Schwarzchild... | [
"gr-qc",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "18611136",
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},
{
"corpus_id": "7736176",
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}
] | [
{
"author_id": "y itin_1",
"name": "Y. Itin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
9934267 | quant-ph/9811069 | 1998-11-25 | Local Transition Functions of Quantum Turing Machines | Foundations of the notion of quantum Turing machines are investigated. According to Deutsch's formulation, the time evolution of a quantum Turing machine is to be determined by the local transition function. In this paper, the local transition functions are characterized for fully general quantum Turing machines, inclu... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
728603 | math/9811157 | 1998-11-26 | Noise Sensitivity of Boolean Functions and Applications to Percolation | It is shown that a large class of events in a product probability space are highly sensitive to noise, in the sense that with high probability, the configuration with an arbitrary small percent of random errors gives almost no prediction whether the event occurs. On the other hand, weighted majority functions are shown... | [
"math.PR",
"math-ph",
"math.CO",
"math.FA",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119353011 | astro-ph/9811479 | 1998-11-30 | Limb-Darkening of a K Giant in the Galactic Bulge: PLANET Photometry of MACHO 97-BLG-28 | We present the PLANET photometric dataset for the binary-lens microlensing event MACHO 97-BLG-28 consisting of 696 I and V-band measurements, and analyze it to determine the radial surface brightness profile of the Galactic bulge source star. The microlensed source, demonstrated to be a K giant by our independent spect... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13962617 | cond-mat/9811421 | 1998-11-30 | Statistical Mechanics of Support Vector Networks | Using methods of Statistical Physics, we investigate the generalization performance of support vector machines (SVMs), which have been recently introduced as a general alternative to neural networks. For nonlinear classification rules, the generalization error saturates on a plateau, when the number of examples is too ... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "r dietrich_2",
"name": "Rainer Dietrich",
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},
{
"author_id": "m opper_2",
"name": "Manfred Opper",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119432813 | quant-ph/9812004 | 1998-12-01 | Feedback-control of quantum systems using continuous state-estimation | We present a formulation of feedback in quantum systems in which the best estimates of the dynamical variables are obtained continuously from the measurement record, and fed back to control the system. We apply this method to the problem of cooling and confining a single quantum degree of freedom, and compare it to cur... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15634448 | math-ph/9812002 | 1998-12-01 | Geodesic Flows on Diffeomorphisms of the Circle, Grassmannians, and the Geometry of the Periodic KdV Equation | We start by constructing a Hilbert manifold T of orientation preserving diffeomorphisms of the circle (modulo the group of bi-holomorphic self-mappings of the disc). This space, which could be thought of as a completion of the universal Teichmueller space, is endowed with a right-invariant Kaehler metric. Using results... | [
"math-ph",
"math.AP",
"math.MP"
] | null | [
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{
"corpus_id": "15925650",
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},
{
"corpus_id": "15115990",
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}
] | [
{
"author_id": "m schonbek_1",
"name": "Maria [\"E.\"] Schonbek",
"publication_history": null,
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},
{
"author_id": "a todorov_1",
"name": "Andrey [\"N.\"] Todorov",
"publication_history": null,
"h_index": null,
... | null |
2733679 | hep-th/9812007 | 1998-12-01 | Vacua, Propagators, and Holographic Probes in AdS/CFT | In this paper we investigate the relation between the bulk and boundary in AdS/CFT. We first discuss the relation between the Poincare and the global vacua, and then study various probes of the bulk from the boundary theory point of view. We derive expressions for retarded propagators and note that objects in free fall... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119047602 | cond-mat/9812043 | 1998-12-02 | Effective Hamiltonian with holomorphic variables | The pure-quantum self-consistent harmonic approximation (PQSCHA) permits to study a quantum system by means of an effective classical Hamiltonian. In this work the PQSCHA is reformulated in terms of the holomorphic variables connected to a set of bosonic operators. The holomorphic formulation, based on the olomorphic p... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a cuccoli_1",
"name": "Alessandro Cuccoli",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "v tognetti_1",
"name": "Valerio Tognetti",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
16746417 | hep-th/9812015 | 1998-12-02 | Molien Function for Duality | The Molien function counts the number of independent group invariants of a representation. For chiral superfields, it is invariant under duality by construction. We illustrate how it calculates the spectrum of supersymmetric gauge theories. | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17262554 | astro-ph/9812079 | 1998-12-03 | Quasi-thermal Comptonization and gamma-ray bursts | Quasi-thermal Comptonization in internal shocks formed between relativistic shells can account for the high energy emission of gamma-ray bursts. This is in fact the dominant cooling mechanism if the typical energy of the emitting particles is achieved either through the balance between heating and cooling or as a resul... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14911329 | astro-ph/9812085 | 1998-12-03 | Gravity-Modes in ZZ Ceti Stars III. Eigenvalues and Eigenfuctions | We report on numerical calculations of nonadiabatic eigenvalues and eigenfunctions for g-modes in ZZ Ceti variables. The spectrum of overstable $l=1$ modes delineates the instability strip. Its blue edge occurs where $\omega \tau_c \approx 1$ for the $n=1$ mode. Here $\omega$ is radian frequency and $\tau_c$ is about f... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17042692 | hep-th/9812035 | 1998-12-03 | New Vacua of Gauged N=8 Supergravity | We analyze a particular SU(2) invariant sector of the scalar manifold of gauged N=8 supergravity in five dimensions, and find all the critical points of the potential within this sector. The critical points give rise to Anti-de Sitter vacua, and preserve at least an SU(2) gauge symmetry. Consistent truncation implies t... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119101226 | astro-ph/9812105 | 1998-12-04 | ESO Imaging Survey. Hubble Deep Field South: Optical-Infrared Observations, Data Reduction and Photometry | This paper presents ground-based data obtained from deep optical and infrared observations of the HST Hubble Deep Field South (HDF-S) field carried out at the ESO 3.5 New Technology Telescope (NTT). These data were taken as part of the ESO Imaging Survey (EIS) program, a public survey coordinated by ESO and member stat... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l costa_3",
"name": "Luiz [\"Nicolaci\",\"da\"] Costa",
"publication_history": null,
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},
{
"author_id": "m nonino_2",
"name": "Mario Nonino",
"publication_history": null,
"h_index": null,
"num_p... | null |
15734686 | hep-th/9812057 | 1998-12-07 | Fokker-Type Confinement Models from Effective Lagrangian in Classical Yang-Mills Theory | Abelian potentials of pointlike moving sources are obtained from the nonstandard theory of Yang--Mills field. They are used for the construction of the time-symmetric and time-asymmetric Fokker-type action integrals describing the dynamics of two-particle system with confinement interaction. The time-asymmetric model i... | [
"hep-th"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a duviryak_1",
"name": "Askold Duviryak",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
14382583 | cond-mat/9812102 | 1998-12-07 | Atomic-scale modeling of the deformation of nanocrystalline metals | Nanocrystalline metals, i.e. metals with grain sizes from 5 to 50 nm, display technologically interesting properties, such as dramatically increased hardness, increasing with decreasing grain size. Due to the small grain size, direct atomic-scale simulations of plastic deformation of these materials are possible, as su... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "j schiøtz_1",
"name": "Jakob Schiøtz",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "t vegge_1",
"name": "Tejs Vegge",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
38162112 | nucl-th/9812015 | 1998-12-07 | Caloric curve in fragmentation | We study phase transitions of small two dimensional Lennard Jones drops via microcanonical molecular dynamics in a broad energy range. We found that the caloric curve can be extended to high energies to comprehend high evaporation rates and highly non-equilibrium phenomena such as multifragmentation. Multifragmentation... | [
"nucl-th"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
59958 | cs/9812007 | 1998-12-08 | Minimum Cuts in Near-Linear Time | We significantly improve known time bounds for solving the minimum cut problem on undirected graphs. We use a ``semi-duality'' between minimum cuts and maximum spanning tree packings combined with our previously developed random sampling techniques. We give a randomized algorithm that finds a minimum cut in an m-edge, ... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14778679 | hep-ph/9812320 | 1998-12-10 | FeynHiggs: a program for the calculation of the masses of the neutral CP-even Higgs bosons in the MSSM | FeynHiggs is a Fortran code for the calculation of the masses of the neutral CP-even Higgs bosons in the MSSM up to two-loop order. It is based on the complete diagrammatic on-shell results at the one-loop level, the leading diagrammatic two-loop QCD contributions and further improvements taking into account leading el... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7468066 | cs/9812012 | 1998-12-10 | Quantum simulations of classical random walks and undirected graph connectivity | It is not currently known if quantum Turing machines can efficiently simulate probabilistic computations in the space-bounded case. In this paper we show that space-bounded quantum Turing machines can efficiently simulate a limited class of random processes: random walks on undirected graphs. By means of such simulatio... | [
"cs.CC",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119503656 | cond-mat/9812215 | 1998-12-13 | Irrelevance of memory in the minority game | By means of extensive numerical simulations we show that all the distinctive features of the minority game introduced by Challet and Zhang (1997), are completely independent from the memory of the agents. The only crucial requirement is that all the individuals must posses the same information, irrespective of the fact... | [
"cond-mat.stat-mech",
"adap-org",
"nlin.AO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3212964 | gr-qc/9812045 | 1998-12-14 | Unitary and non-unitary evolution in quantum cosmology | We analyse when and why unitarity violations might occur in quantum cosmology restricted to minisuperspace. To this end we discuss in detail backscattering transitions between expanding and contracting solutions of the Wheeler-DeWitt equation. We first show that upon neglecting only backscattering, one obtains an inter... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17950355 | quant-ph/9812032 | 1998-12-14 | NQP_{C} = co-C_{=}P | Adleman, DeMarrais, and Huang introduced the nondeterministic quantum polynomial-time complexity class NQP as an analogue of NP. Fortnow and Rogers implicitly showed that, when the amplitudes are rational numbers, NQP is contained in the complement of C_{=}P. Fenner, Green, Homer, and Pruim improved this result by show... | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "42516312",
"num_citations": null
}
] | [
{
"author_id": "t yamakami_1",
"name": "Tomoyuki Yamakami",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "a yao_2",
"name": "Andrew [\"Chi-Chih\"] Yao",
"publication_history": null,
"h_index": null,
"num_pap... | null |
119081144 | chao-dyn/9812020 | 1998-12-14 | Diffusion Limited Aggregation and Iterated Conformal Maps | The creation of fractal clusters by diffusion limited aggregation (DLA) is studied by using iterated stochastic conformal maps following the method proposed recently by Hastings and Levitov. The object of interest is the function $\Phi^{(n)}$ which conformally maps the exterior of the unit circle to the exterior of an ... | [
"chao-dyn",
"cond-mat.stat-mech",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9476046 | hep-th/9812125 | 1998-12-15 | Isotropic Forms of Dynamics in the Relativistic Direct Interaction Theory | The Lagrangian relativistic direct interaction theory in the various forms of dynamics is formulated and its connections with the Fokker-type action theory and with the constrained Hamiltonian mechanics are established. The motion of classical two-particle system with relativistic direct interaction is analysed within ... | [
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a duviryak_1",
"name": "Askold Duviryak",
"publication_history": null,
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},
{
"author_id": "v shpytko_0",
"name": "Volodymyr Shpytko",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
13214752 | math/9812095 | 1998-12-16 | Alexander Duality for Monomial Ideals and Their Resolutions | Alexander duality has, in the past, made its way into commutative algebra through Stanley-Reisner rings of simplicial complexes. This has the disadvantage that one is limited to squarefree monomial ideals. The notion of Alexander duality is generalized here to arbitrary monomial ideals. It is shown how this duality is ... | [
"math.AC",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1273409 | hep-ph/9812418 | 1998-12-17 | High-Energy Tests of Lorentz Invariance | We develop a perturbative framework with which to discuss departures from exact Lorentz invariance and explore their potentially observable ramifications. Tiny non-invariant terms introduced into the standard model Lagrangian are assumed to be renormalizable (dimension $\le 4$), invariant under $SU(3)\otimes SU(2)\otim... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8091933 | physics/9812035 | 1998-12-18 | The Penalty Method for Random Walks with Uncertain Energies | We generalize the Metropolis et al. random walk algorithm to the situation where the energy is noisy and can only be estimated. Two possible applications are for long range potentials and for mixed quantum-classical simulations. If the noise is normally distributed we are able to modify the acceptance probability by ap... | [
"physics.comp-ph",
"physics.chem-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15508625 | astro-ph/9812350 | 1998-12-18 | Analysis Issues for Large CMB Data Sets | Multi-frequency, high resolution, full sky measurements of the anisotropy in both temperature and polarisation of the cosmic microwave background radiation are the goals of the satellite missions MAP (NASA) and Planck (ESA). The ultimate data products of these missions - multiple microwave sky maps, each of which will ... | [
"astro-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "k górski_1",
"name": "Krzysztof [\"M.\"] Górski",
"publication_history": null,
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},
{
"author_id": "b wandelt_1",
"name": "Benjamin [\"D.\"] Wandelt",
"publication_history": null,
"h_index": null,
... | null |
119104724 | astro-ph/9812394 | 1998-12-21 | The ROSAT Brightest Cluster Sample (BCS) - I. The compilation of the sample and the cluster log N-log S distribution | We present a 90 per cent flux-complete sample of the 201 X-ray brightest clusters of galaxies in the northern hemisphere (dec > 0 deg), at high Galactic latitudes (|b| > 20 deg), with measured redshifts z < 0.3 and fluxes higher than 4.4 x 10^(-12) erg cm^(-2) s^{-1) in the 0.1-2.4 keV band. The sample, called the ROSA... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16868380 | astro-ph/9812404 | 1998-12-22 | The local density of matter mapped by Hipparcos | We determine the velocity distribution and space density of a volume complete sample of A and F stars, using parallaxes and proper motions from the Hipparcos satellite. We use these data to solve for the gravitational potential vertically in the local Galactic disc, by comparing the Hipparcos measured space density wit... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119359584 | cond-mat/9812373 | 1998-12-22 | Energy distribution of maxima and minima in a one-dimensional random system | We study the energy distribution of maxima and minima of a simple one-dimensional disordered Hamiltonian. We find that in systems with short range correlated disorder there is energy separation between maxima and minima, such that at fixed energy only one kind of stationary points is dominant in number over the other. ... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a cavagna_1",
"name": "Andrea Cavagna",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j garrahan_1",
"name": "Juan [\"P.\"] Garrahan",
"publication_history": null,
"h_index": null,
"num_paper... | null |
15159166 | astro-ph/9903221 | 1998-12-22 | The differential magnification of high-redshift ultraluminous infrared galaxies | This proceeding discusses the potential modifications to the mid-infrared spectral energy distribution (SED) of a high-redshift dusty AGN that is graviationally lensed by a foreground galaxy. The mid-infrared colour of a lensed galaxy would typically be bluer than that of the same galaxy in the absence of magnification... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119485171 | astro-ph/9812434 | 1998-12-23 | Extended Ly-alpha emission from a damped Ly-alpha absorber at z = 1.93, and the relation between DLAs and Lyman-break galaxies | The number of damped Ly-alpha absorbers (DLAs) currently known is about 100, but our knowledge of their sizes and morphologies is still very sparse as very few have been detected in emission. Here we present narrow-band and broad-band observations of a DLA in the field of the quasar pair Q0151+048A (qA) and Q0151+048B ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6747665 | math/9812137 | 1998-12-23 | Asymptotic stability equals exponential stability, and ISS equals finite energy gain---if you twist your eyes | In this paper we show that uniformly global asymptotic stability for a family of ordinary differential equations is equivalent to uniformly global exponential stability under a suitable nonlinear change of variables. The same is shown for input-to-state stability and input-to-state exponential stability, and for input-... | [
"math.OC",
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119372548 | quant-ph/9812075 | 1998-12-26 | Optimal purification of single qubits | We introduce a new decomposition of the multiqubit states of the form $\rho^{\otimes N}$ and employ it to construct the optimal single qubit purification procedure. The same decomposition allows us to study optimal quantum cloning and state estimation of mixed states. | [
"quant-ph"
] | null | [
"target.key_reference"
] | null | null | null |
2520254 | cs/9812022 | 1998-12-28 | Hypertree Decompositions and Tractable Queries | Several important decision problems on conjunctive queries (CQs) are NP-complete in general but become tractable, and actually highly parallelizable, if restricted to acyclic or nearly acyclic queries. Examples are the evaluation of Boolean CQs and query containment. These problems were shown tractable for conjunctive ... | [
"cs.DB",
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16272810 | cs/9812023 | 1998-12-29 | Virtual Kathakali : Gesture Driven Metamorphosis | Training in motor skills such as athletics, dance, or gymnastics is not possible today except in the direct presence of the coach/instructor. This paper describes a computer vision based gesture recognition system which is used to metamorphose the user into a Virtual person, e.g. as a Kathakali dancer, which is graphic... | [
"cs.HC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s paul_8",
"name": "Soumyadeep Paul",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s sinha_23",
"name": "Sudipta [\"N.\"] Sinha",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
117925783 | astro-ph/9812473 | 1998-12-30 | Cosmology from Type Ia Supernovae | This presentation reports on first evidence for a low-mass-density/positive-cosmological-constant universe that will expand forever, based on observations of a set of 40 high-redshift supernovae. The experimental strategy, data sets, and analysis techniques are described. More extensive analyses of these results with s... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s perlmutter_1",
"name": "Saul Perlmutter",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g aldering_1",
"name": "Greg Aldering",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
17755343 | hep-ph/9901206 | 1999-01-02 | Radiatively Induced Neutrino Masses and Large Higgs-Neutrino Couplings in the Standard Model with Majorana Fields | The Higgs sector of the Standard Model with one right-handed neutrino per family is systematically analyzed. In a model with intergenerational independent mixings between families, we can account for very light neutrinos acquiring Majorana masses radiatively at the first electroweak loop level. We also find that in suc... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119436056 | astro-ph/9901047 | 1999-01-05 | The Canada-UK Deep Sub-Millimeter Survey II: First identifications, redshifts and implications for galaxy evolution | Identifications are sought for 12 sub-mm sources detected by Eales et al (1998). Six are securely identified, two have probable identifications and four remain unidentified with I_AB > 25. Spectroscopic and estimated photometric redshifts indicate that four of the sources have z < 1, and four have 1 < z < 3, with the r... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
36568174 | astro-ph/9901069 | 1999-01-07 | Star Cluster Simulations: The State of the Art | This paper concentrates on four key tools for performing star cluster simulations developed during the last decade which are sufficient to handle all the relevant dynamical aspects. First we discuss briefly the Hermite integration scheme which is simple to use and highly efficient for advancing the single particles. Th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10389333 | astro-ph/9901122 | 1999-01-11 | Large scale bias and the peak background split | Dark matter haloes are biased tracers of the underlying dark matter distribution. We use a simple model to provide a relation between the abundance of dark matter haloes and their spatial distribution on large scales. Our model shows that knowledge of the unconditional mass function alone is sufficient to provide an ac... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
822648 | cs/9901004 | 1999-01-12 | On the geometry of similarity search: dimensionality curse and concentration of measure | We suggest that the curse of dimensionality affecting the similarity-based search in large datasets is a manifestation of the phenomenon of concentration of measure on high-dimensional structures. We prove that, under certain geometric assumptions on the query domain $\Omega$ and the dataset $X$, if $\Omega$ satisfies ... | [
"cs.IR",
"cs.CG",
"cs.DB",
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15485249 | cond-mat/9901110 | 1999-01-12 | Wigner-Dyson Statistics from the Replica Method | We compute the correlation functions of the eigenvalues in the Gaussian unitary ensemble using the fermionic replica method. We show that non--trivial saddle points, which break replica symmetry, must be included in the calculation in order to reproduce correctly the exact results for the correlation functions at large... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
54995912 | cond-mat/9901101 | 1999-01-12 | Thermodynamically admissible form for discrete hydrodynamics | We construct a discrete model of fluid particles according to the GENERIC formalism. The model has the form of Smoothed Particle Hydrodynamics including correct thermal fluctuations. A slight variation of the model reproduces the Dissipative Particle Dynamics model with any desired thermodynamic behavior. The resulting... | [
"cond-mat.stat-mech",
"cond-mat.soft"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p español_1",
"name": "Pep Español",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h ottinger_0",
"name": "Hans [\"Christian\"] Ottinger",
"publication_history": null,
"h_index": null,
"num_p... | null |
15621256 | astro-ph/9901139 | 1999-01-12 | Observation of the east-west anisotropy of the atmospheric neutrino flux | The east-west anisotropy, caused by the deflection of primary cosmic rays in the Earth's magnetic field, is observed for the first time in the flux of atmospheric neutrinos. Using a 45 kt-year exposure of the Super-Kamiokande detector, 552 e-like and 633 mu-like horizontally-going events are selected in the momentum ra... | [
"astro-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118921668 | astro-ph/9901175 | 1999-01-13 | A Catalogue of Optically Selected Cores | We present a new catalogue of 406 dense cores optically selected by using the STScI Digitized Sky Survey (DSS). In this catalogue 306 cores have neither an Embedded YSO (EYSO) nor a Pre-Main-Sequence (PMS) star, 94 cores have EYSOs (1 core has both an EYSO and a PMS star), and 6 cores have PMS star only. Our sample of ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16423573 | hep-ph/9901312 | 1999-01-14 | Finite temperature field theory and phase transitions | We review different aspects of field theory at zero and finite temperature, related to the theory of phase transitions. We discuss different renormalization conditions for the effective potential at zero temperature, emphasizing in particular the MS-bar renormalization scheme. Finite temperature field theory is discuss... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15531819 | astro-ph/9901191 | 1999-01-14 | Ray Tracing Simulations of Weak Lensing by Large-Scale Structure | We investigate weak lensing by large-scale structure using ray tracing through N-body simulations. Photon trajectories are followed through high resolution simulations of structure formation to make simulated maps of shear and convergence on the sky. Tests with varying numerical parameters are used to calibrate the acc... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "8153768",
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},
{
"corpus_id": "15286498",
"num_citations": null
},
{
"corpus_id": "12898146",
"num_citations": null
}
] | [
{
"author_id": "b jain_1",
"name": "Bhuvnesh Jain",
"publication_history": null,
"h_index": null,
"num_papers": null,
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},
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
25645250 | math-ph/9901006 | 1999-01-14 | Explicit Green's Function of a Boundary Value Problem for a Sphere and Trapped Flux Analysis in Gravity Probe B Experiment | Magnetic flux trapped on the surface of superconducting rotors of the Gravity Probe B (GP-B) experiment produces some signal in the SQUID readout. For the needs of GP-B error analysis and simulation of data reduction, this signal is calculated and analyzed in the paper. We first solve a magnetostatic problem for a poin... | [
"math-ph",
"math.MP",
"physics.comp-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "i nemenman_1",
"name": "Ilya Nemenman",
"publication_history": null,
"h_index": null,
"num_papers": null,
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},
{
"author_id": "a silbergleit_1",
"name": "Alexander [\"S.\"] Silbergleit",
"publication_history": null,
"h_index": null,
... | null |
14351345 | astro-ph/9901190 | 1999-01-14 | Radio Continuum Evidence for Outflow and Absorption in the Seyfert 1 Galaxy Markarian 231 | The VLBA and the VLA have been used to image the continuum radio emission from Mrk 231, a Seyfert 1 galaxy and the brightest infrared galaxy in the local universe. The smallest scales reveal a double source less than 2 pc in extent. The components of this central source have minimum brightness temperatures of 10^9 to 1... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10348821 | quant-ph/9901053 | 1999-01-17 | Optimal Manipulations with Qubits: Universal NOT Gate | It is not a problem to complement a classical bit, i.e. to change the value of a bit, a 0 to a 1 and vice versa. This is accomplished by a NOT gate. Complementing a qubit in an unknown state, however, is another matter. We show that this operation cannot be done perfectly. We define the Universal-NOT (U-NOT) gate which... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10540804 | astro-ph/9901224 | 1999-01-19 | Analysis of Line Candidates in Gamma-Ray Bursts Observed by BATSE | A comprehensive search of BATSE Spectroscopy Detector data from 117 GRBs has uncovered 13 statistically significant line candidates. The case of a candidate in GRB 930916 is discussed. In the data of SD 2 there appears to be a emission line at 46 keV, however the line is not seen in the data of SD 7. Simulations indica... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m briggs_2",
"name": "M. [\"S.\"] Briggs",
"publication_history": null,
"h_index": null,
"num_papers": null,
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},
{
"author_id": "d band_1",
"name": "David [\"L.\"] Band",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
15667613 | quant-ph/9901059 | 1999-01-19 | Invariant Quantum Algorithms for Insertion into an Ordered List | We consider the problem of inserting one item into a list of N-1 ordered items. We previously showed that no quantum algorithm could solve this problem in fewer than log N/(2 log log N) queries, for N large. We transform the problem into a "translationally invariant" problem and restrict attention to invariant algorith... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14115745 | astro-ph/9901263 | 1999-01-20 | A Spectroscopic Catalog of 10 Distant Rich Clusters of Galaxies | We present spectroscopic observations of galaxies in the fields of 10 distant clusters for which we have previously presented deep imaging with WFPC2 on board the HST. The clusters span the redshift range z=0.37-0.56 and are the subject of a detailed ground- and space-based study to investigate the evolution of galaxie... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
290527 | math-ph/9901014 | 1999-01-20 | A guide to mathematical quasicrystals | This introductory survey deals with mathematical and physical properties of discrete structures such as point sets and tilings. The emphasis is on proper generalizations of concepts and ideas from classical crystallography. In particular, we focus on their interplay with various physically motivated equivalence concept... | [
"math-ph",
"cond-mat",
"math.MG",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14984275 | astro-ph/9901262 | 1999-01-20 | SNR G320.4-01.2 and PSR B1509-58: New radio observations of a complex interacting system | We describe radio continuum and spectral line observations of the source G320.4-01.2 (MSH 15-52) and the coincident young pulsar B1509-58 made with the Australia Telescope Compact Array. Based on a comparison between X-ray and radio observations, we argue that the two main radio components of G320.4-01.2 are a single s... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15344923 | astro-ph/9901273 | 1999-01-20 | The fraction of double degenerates among DA white dwarfs | We present the results of a radial velocity survey designed to measure the fraction of double degenerates among DA white dwarfs. The narrow core of the H-alpha line was observed twice or more for 46 white dwarfs yielding radial velocities accurate to a few km/s. This makes our survey the most sensitive to the detection... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1344969 | cond-mat/9901223 | 1999-01-21 | The Resistance of Feynman Diagrams and the Percolation Backbone Dimension | We present a new view of Feynman diagrams for the field theory of transport on percolation clusters. The diagrams for random resistor networks are interpreted as being resistor networks themselves. This simplifies the field theory considerably as we demonstrate by calculating the fractal dimension $D_B$ of the percolat... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18140391 | astro-ph/9901287 | 1999-01-21 | Simulating Weak Lensing by Clusters and Large-Scale Structure | Selected results on estimating cosmological parameters from simulated weak lensing data with noise are presented. Numerical simulations of ray tracing through N-body simulations have been used to generate shear and convergence maps due to lensing by large-scale structure. Noise due to the intrinsic ellipticities of a f... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b jain_1",
"name": "Bhuvnesh Jain",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
376086 | astro-ph/9901313 | 1999-01-22 | Absorption Line Signatures of Gas in Mini Dark Matter Halos | Recent observations and theoretical calculations suggest that some QSO absorption line systems may be due to gas in small dark matter halos with circular velocities on the order of 30 km/s. Additional observational evidence suggests that, in general, many absorption line systems may also be multi-phase in nature. Thus,... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "9002625",
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},
{
"corpus_id": "119034955",
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{
"corpus_id": "119101653",
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},
{
"corpus_id": "118897906",
"num_citations": null
},
{
"corpus_id": "118911226",
"num_citations": null
... | [
{
"author_id": "j kepner_1",
"name": "Jeremy Kepner",
"publication_history": null,
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},
{
"author_id": "t tripp_1",
"name": "Todd [\"M.\"] Tripp",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
119352682 | astro-ph/9705259 | 1999-01-23 | The Extragalactic Distance Scale Key Project VIII. The Discovery of Cepheids and a New Distance to NGC 3621 Using the Hubble Space Telescope | We report on the discovery of Cepheids in the field spiral galaxy NGC 3621, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). NGC 3621 is one of 18 galaxies observed as a part of The HST Key Project on the Extragalactic Distance Scale, which aims to measure... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14203889 | astro-ph/9901338 | 1999-01-25 | Predictions for The Very Early Afterglow and The Optical Flash | According to the internal-external shocks model for $\gamma $-ray bursts (GRBs), the GRB is produced by internal shocks within a relativistic flow while the afterglow is produced by external shocks with the ISM. We explore the early afterglow emission. For short GRBs the peak of the afterglow will be delayed, typically... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
250655 | cs/9901013 | 1999-01-26 | Analysis of approximate nearest neighbor searching with clustered point sets | We present an empirical analysis of data structures for approximate nearest neighbor searching. We compare the well-known optimized kd-tree splitting method against two alternative splitting methods. The first, called the sliding-midpoint method, which attempts to balance the goals of producing subdivision cells of bou... | [
"cs.CG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14242122 | math/9901122 | 1999-01-26 | Rates of convergence for the approximation of dual shift-invariant systems in $l_2(Z)$ | A shift-invariant system is a collection of functions $\{g_{m,n}\}$ of the form $g_{m,n}(k) = g_m(k-an)$. Such systems play an important role in time-frequency analysis and digital signal processing. A principal problem is to find a dual system $\gamma_{m,n}(k) = \gamma_m(k-an)$ such that each function $f$ can be writt... | [
"math.NA"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "t strohmer_1",
"name": "Thomas Strohmer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
14035193 | math/9901123 | 1999-01-26 | A Levinson-Galerkin algorithm for regularized trigonometric approximation | Trigonometric polynomials are widely used for the approximation of a smooth function $f$ from a set of nonuniformly spaced samples $\{f(x_j)\}_{j=0}^{N-1}$. If the samples are perturbed by noise, controlling the smoothness of the trigonometric approximation becomes an essential issue to avoid overfitting and underfitti... | [
"math.NA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t strohmer_1",
"name": "Thomas Strohmer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
15313616 | physics/9901047 | 1999-01-26 | Exact charge conservation scheme for Particle-in-Cell simulations for a big class of form-factors | As an alternative to solving of Poisson equation in Particle-in-Cell methods, a new construction of current density exactly satisfying continuity equation in finite differences is developed. This procedure called density decomposition is proved to be the only possible linear procedure for defining the current density a... | [
"physics.comp-ph",
"physics.plasm-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t esirkepov_1",
"name": "Timur Zh. Esirkepov",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
55002749 | quant-ph/9901072 | 1999-01-26 | Spin flips and quantum information for anti-parallel spins | We consider two different ways to encode quantum information, by parallel or anti-parallel pairs of spins. We find that there is more information in the anti-parallel ones. This purely quantum mechanical effect is due to entanglement, not of the states but occuring in the course of the measuring process. We also introd... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15803680 | math/9901121 | 1999-01-26 | A multi-level algorithm for the solution of moment problems | We study numerical methods for the solution of general linear moment problems, where the solution belongs to a family of nested subspaces of a Hilbert space. Multi-level algorithms, based on the conjugate gradient method and the Landweber--Richardson method are proposed that determine the "optimal" reconstruction level... | [
"math.NA",
"cs.NA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "o scherzer_1",
"name": "Otmar Scherzer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "t strohmer_1",
"name": "Thomas Strohmer",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
7598959 | hep-th/9901148 | 1999-01-28 | Three-dimensional quantum geometry and black holes | We review some aspects of three-dimensional quantum gravity with emphasis in the `CFT -> Geometry' map that follows from the Brown-Henneaux conformal algebra. The general solution to the classical equations of motion with anti-de Sitter boundary conditions is displayed. This solution is parametrized by two functions wh... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1813818 | cond-mat/9901352 | 1999-01-29 | The Entropy Production Fluctuation Theorem and the Nonequilibrium Work Relation for Free Energy Differences | There are only a very few known relations in statistical dynamics that are valid for systems driven arbitrarily far-from-equilibrium. One of these is the fluctuation theorem, which places conditions on the entropy production probability distribution of nonequilibrium systems. Another recently discovered far-from-equili... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15559692 | physics/9902006 | 1999-02-01 | Front dynamics during diffusion-limited corrosion of ramified electrodeposits | Experiments on the diffusion-limited corrosion of porous copper clusters in thin gap cells containing cupric chloride are reported. By carefully comparing corrosion front velocities and concentration profiles obtained by phase-shift interferometry with theoretical predictions, it is demonstrated that this process is we... | [
"physics.chem-ph",
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c léger_2",
"name": "Christophe Léger",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "f argoul_1",
"name": "Françoise Argoul",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
119377297 | astro-ph/9902009 | 1999-02-02 | GRB990123, The Optical Flash and The Fireball Model | We compare the ongoing observations of the remarkable burst GRB990123, the mother of all bursts, with the predictions of the afterglow theory. We show that the observations agree with the recent prediction that a reverse shock propagating into the ejecta would produce a very strong prompt optical flash. This reverse sh... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11164944 | math/9902024 | 1999-02-03 | Lyapunov Characterizations of Input to Output Stability | This paper presents necessary and sufficient characterizations of several notions of input to output stability. Similar Lyapunov characterizations have been found to play a key role in the analysis of the input to state stability property, and the results given here extend their validity to the case when the output, bu... | [
"math.OC",
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2238492 | math/9902025 | 1999-02-03 | Notions of Input to Output Stability | This paper deals with several related notions of output stability with respect to inputs. The inputs may be thought of as disturbances; when there are no inputs, one obtains generalizations of the classical concepts of partial stability. The main notion studied is called input to output stability (IOS), and it reduces ... | [
"math.OC",
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14518962 | math/9902023 | 1999-02-03 | Further results on controllability of recurrent neural networks | This paper studies controllability properties of recurrent neural networks. The new contributions are: (1) an extension of the result in the previous paper "Complete controllability of continuous-time recurrent neural networks" (Sontag and Sussmann) to a slightly different model, where inputs appear in an affine form, ... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119081690 | cond-mat/9902076 | 1999-02-04 | Quantum Creep in Y_{1-x}Pr_{x}Ba_{2}Cu_{3}O_{7}$ Crystals: Magnetic Relaxation and Transport | We report transport and magnetic relaxation measurements in the mixed state of strongly underdoped Y_{1-x}Pr_{x}Ba_{2}Cu_{3}O_{7} crystals. A transition from thermally activated flux creep to temperature independent quantum flux creep is observed in both transport and magnetic relaxation at temperatures T * 5 K. Flux t... | [
"cond-mat.supr-con"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t stein_1",
"name": "T. Stein",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g levin_0",
"name": "George [\"A.\"] Levin",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
14840929 | astro-ph/9902063 | 1999-02-04 | Simulation of Stellar Objects in SDSS Color Space | We present a simulation of the spatial, luminosity and spectral distributions of four types of stellar objects. We simulate: (1) Galactic stars, based on a Galactic structure model, a stellar population synthesis model, stellar isochrones, and stellar spectral libraries; (2) white dwarfs, based on model atmospheres, th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5210508 | cs/9902007 | 1999-02-04 | KEA: Practical Automatic Keyphrase Extraction | Keyphrases provide semantic metadata that summarize and characterize documents. This paper describes Kea, an algorithm for automatically extracting keyphrases from text. Kea identifies candidate keyphrases using lexical methods, calculates feature values for each candidate, and uses a machine-learning algorithm to pred... | [
"cs.DL"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
19002641 | astro-ph/9902082 | 1999-02-04 | The Starburst in the Central Kiloparsec of Markarian 231 | We present VLBA observations at 0.33 and 0.61 GHz, and VLA observations between 5 and 22 GHz, of subkiloparsec scale radio emission from Mrk 231. In addition to jet components clearly associated with the AGN, we also find a smooth extended component of size 100 - 1000 pc most probably related to the purported massive s... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6684588 | hep-ex/9902006 | 1999-02-05 | Confidence Level Computation for Combining Searches with Small Statistics | This article describes an efficient procedure for computing approximate confidence levels for searches for new particles where the expected signal and background levels are small enough to require the use of Poisson statistics. The results of many independent searches for the same particle may be combined easily, regar... | [
"hep-ex",
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
17580332 | astro-ph/9902103 | 1999-02-06 | The Planck Surveyor mission: astrophysical prospects | Although the Planck Surveyor mission is optimized to map the cosmic microwave background anisotropies, it will also provide extremely valuable information on astrophysical phenomena. We review our present understanding of Galactic and extragalactic foregrounds relevant to the mission and discuss on one side, Planck's i... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14838610 | astro-ph/9902109 | 1999-02-07 | Measuring Galactic Extinction: A Test | We test the recently published all-sky reddening map of Schlegel, Finkbeiner & Davis (1998 [SFD]) using the extinction study of a region in the Taurus dark cloud complex by Arce & Goodman (1999 [AG]). In their study, AG use four different techniques to measure the amount and structure of the extinction toward Taurus, a... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3261775 | cs/9902011 | 1999-02-07 | Content-Based Book Recommending Using Learning for Text Categorization | Recommender systems improve access to relevant products and information by making personalized suggestions based on previous examples of a user's likes and dislikes. Most existing recommender systems use social filtering methods that base recommendations on other users' preferences. By contrast, content-based methods u... | [
"cs.DL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18738628 | astro-ph/9902131 | 1999-02-08 | The CASTLES project | We describe the goals of the CASTLES (CfA-Arizona-Space-Telescope-LEns-Survey) project including a sample of NICMOS images of gravitational lenses and a brief list of the preliminary findings. | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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