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 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
202109678 | hep-ex/0203020 | 2002-03-13 | Search for charginos nearly mass degenerate with the lightest neutralino in e+e- collisions at centre-of-mass energies up to 209GeV | A search for charginos nearly mass degenerate with the lightest neutralino is performed with the data collected by the ALEPH detector at LEP, at centre-of-mass energies between 189 and 209 GeV, corresponding to an integrated luminosity of 628 pb-1. The analysis is based on the detection of isolated and energetic initia... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a heister_1",
"name": "Arno Heister",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s schael_1",
"name": "Stefan Schael",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
909458 | cs/0203018 | 2002-03-13 | Improving Table Compression with Combinatorial Optimization | We study the problem of compressing massive tables within the partition-training paradigm introduced by Buchsbaum et al. [SODA'00], in which a table is partitioned by an off-line training procedure into disjoint intervals of columns, each of which is compressed separately by a standard, on-line compressor like gzip. We... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16642281 | cond-mat/0203290 | 2002-03-13 | Discovering Planar Disorder in Close-Packed Structures from X-Ray Diffraction: Beyond the Fault Model | We solve a longstanding problem--determining structural information for disordered materials from their diffraction spectra--for the case of planar disorder in close-packed structures (CPSs). Our solution offers the most complete possible statistical description of the disorder, and, from it, we find the minimum effect... | [
"cond-mat.dis-nn",
"cond-mat.mtrl-sci",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11821990 | physics/0203041 | 2002-03-13 | Non-premixed Flame-Turbulence Interaction in Compressible Turbulent Flow | Nonpremixed turbulent reacting flows are intrinsically difficult to model due to the strong coupling between turbulent motions and reaction. The large amount of heat released by a typical hydrocarbon flame leads to significant modifications of the thermodynamic variables and the molecular transport coefficients and thu... | [
"physics.flu-dyn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d livescu_1",
"name": "Daniel Livescu",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "c madnia_1",
"name": "Cyrus [\"K.\"] Madnia",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
14926247 | astro-ph/0203240 | 2002-03-14 | Constraining Strong Baryon-Dark Matter Interactions with Primordial Nucleosynthesis and Cosmic Rays | Self-interacting dark matter (SIDM) was introduced by Spergel & Steinhardt to address possible discrepancies between collisionless dark matter simulations and observations on scales of less than 1 Mpc. We examine the case in which dark matter particles not only have strong self-interactions but also have strong interac... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r cyburt_1",
"name": "Richard [\"H.\"] Cyburt",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "b fields_1",
"name": "Brian [\"D.\"] Fields",
"publication_history": null,
"h_index": null,
"num_... | null |
14901516 | astro-ph/0203249 | 2002-03-15 | The most distant structure of galaxies known: a protocluster at z=4.1 | Imaging and spectroscopy with the Very Large Telescope have revealed 20 Lyman-alpha emitters within a projected distance of 1.3 Mpc and 600 km/s of the luminous radio galaxy TN J1338-1942 at z=4.1. Compared to the field density of Lyman-alpha emitters, this implies an overdensity on the order of 15. The structure has a... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
98472702 | cond-mat/0203325 | 2002-03-15 | Simplified Onsager theory for isotropic-nematic phase equilibria of length polydisperse hard rods | Polydispersity is believed to have important effects on the formation of liquid crystal phases in suspensions of rod-like particles. To understand such effects, we analyse the phase behaviour of thin hard rods with length polydispersity. Our treatment is based on a simplified Onsager theory, obtained by truncating the ... | [
"cond-mat.soft",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15448823 | astro-ph/0203252 | 2002-03-15 | Unusual Broad Absorption Line Quasars from the Sloan Digital Sky Survey | The Sloan Digital Sky Survey has confirmed the existence of populations of broad absorption line (BAL) quasars with various unusual properties. We present and discuss twenty-three such objects and consider the implications of their wide range of properties for models of BAL outflows and quasars in general. We have disc... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14605700 | astro-ph/0203269 | 2002-03-18 | HI Fluctuations at Large Redshifts: I--Visibility correlation | We investigate the possibility of probing the large scale structure in the universe at large redshifts by studying fluctuations in the redshifted 1420 MHz emission from the neutral hydrogen (HI) at early epochs. The neutral hydrogen content of the universe is known from absorption studies for z<4.5. The HI distribution... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6308079 | hep-ph/0203164 | 2002-03-18 | Neutrinos and Big Bang Nucleosynthesis | The role of neutrinos in big bang nucleosynthesis is discussed. The bounds on the number of neutrino families, neutrino degeneracy, parameters of neutrino oscillations are presented. A model of chemically inhomogeneous, while energetically smooth, universe created by inhomogeneous cosmological neutrino asymmetry is des... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11863343 | physics/0203058 | 2002-03-19 | A Local Ensemble Kalman Filter for Atmospheric Data Assimilation | In this paper, we introduce a new, local formulation of the ensemble Kalman Filter approach for atmospheric data assimilation. Our scheme is based on the hypothesis that, when the Earth's surface is divided up into local regions of moderate size, vectors of the forecast uncertainties in such regions tend to lie in a su... | [
"physics.ao-ph",
"nlin.CD",
"physics.data-an",
"physics.geo-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
76015 | astro-ph/0203303 | 2002-03-19 | MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies | We have measured the Sunyaev-Zeldovich effect towards the Coma cluster (A1656) with the MITO experiment, a 2.6-m telescope equipped with a 4-channel 17 arcminute (FWHM) photometer. Measurements at frequency bands 143+/-15, 214+/-15, 272+/-16 and 353+/-13 GHz, were made during 120 drift scans of Coma. We describe the ob... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16026319 | astro-ph/0203347 | 2002-03-20 | Measuring ^{12}C(&alpha,&gamma)^{16}O from White Dwarf Asteroseismology | During helium burning in the core of a red giant, the relative rates of the 3&alpha and ^{12}C(&alpha,&gamma)^{16}O reactions largely determine the final ratio of carbon to oxygen in the resulting white dwarf star. The uncertainty in the 3&alpha reaction at stellar energies due to the extrapolation from high-energy lab... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "13998019",
"num_citations": null
}
] | [
{
"author_id": "t metcalfe_1",
"name": "Travis [\"S.\"] Metcalfe",
"publication_history": null,
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"num_citations": null
},
{
"author_id": "m salaris_1",
"name": "Maurizio Salaris",
"publication_history": null,
"h_index": null,
"num_p... | null |
18050313 | hep-ph/0203194 | 2002-03-20 | Resurrection of Grand Unified Theory Baryogenesis | A `new' scenario is proposed for baryogenesis. We show that delayed decay of coloured Higgs particles in grand unified theories may generate excess baryon number of the empirically desired amount, if the mass of the heaviest neutrino is in the range $0.02 {\rm eV}<m_{\nu_3}< 0.8 {\rm eV}$, provided that neutrinos are o... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6264889 | cond-mat/0203449 | 2002-03-21 | Chaotic temperature dependence in a model of spin glasses | We address the problem of chaotic temperature dependence in disordered glassy systems at equilibrium by following states of a random-energy random-entropy model in temperature; of particular interest are the crossings of the free-energies of these states. We find that this model exhibits strong, weak or no temperature ... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f krzakala_1",
"name": "Florent Krzakala",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "o martin_2",
"name": "Olivier [\"C.\"] Martin",
"publication_history": null,
"h_index": null,
"num_pap... | null |
119543487 | astro-ph/0203361 | 2002-03-21 | Are high-redshift DLA galxies Lyman-break galaxies? | We use deep HST STIS and NICMOS images of three spectroscopically confirmed galaxy counterparts of high-redshift damped Ly-alpha (DLA) absorbers (one of which is a new discovery) to test the hypothesis that high-redshift DLA galaxies are Lyman-break galaxies. If this hypothesis is correct the emission properties of DLA... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6534736 | hep-th/0203198 | 2002-03-21 | A note on inflation and transplanckian physics | In this paper we consider the influence of transplanckian physics on the CMBR anisotropies produced by inflation. We consider a simple toy model that allows for analytic calculations and argue on general grounds, based on ambiguities in the choice of vacuum, that effects are expected with a magnitude of the order of $H... | [
"hep-th",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14120610 | astro-ph/0203370 | 2002-03-21 | The Kozai Mechanism and the Evolution of Binary Supermassive Black Holes | We consider the dynamical evolution of bound, hierarchical triples of supermassive black holes that might be formed in the nuclei of galaxies undergoing sequential mergers. The tidal force of the outer black hole on the inner binary produces eccentricity oscillations through the Kozai mechanism, and this can substantia... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10592124 | hep-th/0203208 | 2002-03-21 | An AdS/dS duality for a scalar particle | The motion of a scalar particle in (d+1)-dimensional AdS space may be described in terms of the Cartesian coordinates that span the (d+2)-dimensional space in which the AdS space is embedded. Upon quantization, the mass hyperboloid defined in terms of the conjugate momenta turns into the wave equation in AdS space. By ... | [
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g siopsis_1",
"name": "George Siopsis",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
15356472 | hep-th/0203213 | 2002-03-22 | Rational Conformal Field Theories and Complex Multiplication | We study the geometric interpretation of two dimensional rational conformal field theories, corresponding to sigma models on Calabi-Yau manifolds. We perform a detailed study of RCFT's corresponding to T^2 target and identify the Cardy branes with geometric branes. The T^2's leading to RCFT's admit ``complex multiplica... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16949971 | hep-lat/0203023 | 2002-03-22 | Abelian projection in SU(N) gauge theories | The abelian projection in SU(N) gauge theories is discussed in detail, as well as the construction of a disorder parameter to study dual superconductivity as a mechanism for color confinement. If the ideas of the large N limit are correct, a universal N-independent behavior is expected for the suitable rescaled disorde... | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a giacomo_1",
"name": "Adriano [\"di\"] Giacomo",
"publication_history": null,
"h_index": null,
"n... | null |
492398 | cond-mat/0203481 | 2002-03-22 | The Designability of Protein Structures: A Lattice-Model Study using the Miyazawa-Jernigan Matrix | We study the designability of all compact 3x3x3 and 6x6 lattice-protein structures using the Miyazawa-Jernigan (MJ) matrix. The designability of a structure is the number of sequences that design the structure, i.e. sequences that have that structure as their unique lowest-energy state. Previous studies of hydrophobic-... | [
"cond-mat.stat-mech",
"cond-mat.soft",
"q-bio.BM"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "h li_359",
"name": "Hao Li",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "c tang_39",
"name": "Chao Tang",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citation... | null |
9370927 | nucl-ex/0203016 | 2002-03-22 | Mid-rapidity $\Lambda $ and $\bar{\Lambda}$ Production in Au+Au Collisions at $\sqrt{s_{_{NN}}}=130$ GeV | We report the first measurement of strange ($\Lambda$) and anti-strange ($\bar{\Lambda}$) baryon production from $\sqrt{s_{_{NN}}}=130$ GeV Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transverse mass distributions at mid-rapidity are presented as a function of centrality. The yi... | [
"nucl-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c adler_1",
"name": "Clemens Adler",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "z ahammed_1",
"name": "Zubayer Ahammed",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
14404316 | astro-ph/0203391 | 2002-03-22 | Detection of a supernova signature associated with GRB 011121 | Using observations from an extensive monitoring campaign with the Hubble Space Telescope we present the detection of an intermediate-time flux excess which is redder in color relative to the afterglow of GRB 011121, currently distinguished as the gamma-ray burst with the lowest known redshift. The red ``bump,'' which e... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17444729 | math/0203233 | 2002-03-22 | A Characterization of Similarity Maps Between Euclidean Spaces Related to the Beckman--Quarles Theorem | It is shown that each continuous transformation $h$ from Euclidean $m$-space ($m>1$) into Euclidean $n$-space that preserves the equality of distances (that is, fulfils the implication $|x-y|=|z-w|\Rightarrow|h(x)-h(y)|=|h(z)-h(w)|$) is a similarity map. The case of equal dimensions already follows from the Beckman--Qu... | [
"math.MG",
"math.GN"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j heitzig_1",
"name": "Jobst Heitzig",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
12023565 | hep-th/0203211 | 2002-03-22 | Rolling Tachyon | We discuss construction of classical time dependent solutions in open string (field) theory, describing the motion of the tachyon on unstable D-branes. Despite the fact that the string field theory action contains infinite number of time derivatives, and hence it is not a priori clear how to set up the initial value pr... | [
"hep-th",
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17134347 | astro-ph/0203416 | 2002-03-23 | Photon vs Energy Magnitude Systems and the Measurement of the Cosmological Parameters | The relative brightnesses of standard candles have long been known to be potentially powerful probes of distance. The distance modulus, the difference between observed and absolute magnitudes, has been associated with the values of the cosmological parameters: Hubble's constant H_0, the mass density Omega_M and the cos... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a kim_4",
"name": "Alex [\"G\"] Kim",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p nugent_1",
"name": "Peter [\"E.\"] Nugent",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
16731412 | math/0203243 | 2002-03-23 | Periodic Floer pro-spectra from the Seiberg-Witten equations | Given a three-manifold with b_1=1 and a nontorsion spin^c structure, we use finite dimensional approximation to construct from the Seiberg-Witten equations two invariants in the form of a periodic pro-spectra. Various functors applied to these invariants give different flavors of Seiberg-Witten Floer homology. We also ... | [
"math.GT",
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9284518 | math/0203252 | 2002-03-24 | What is Aperiodic Order? | The theory of aperiodic order is concerned with the development of ideas stimulated by the discovery of quasicrystals. We give a gentle introduction to some mathematical aspects of aperiodic order, aimed at a more general audience. | [
"math.HO",
"cond-mat",
"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18849397 | cond-mat/0203489 | 2002-03-24 | Deformed exponentials and logarithms in generalized thermostatistics | Criteria are given that kappa-deformed logarithmic and exponential functions should satisfy. With a pair of such functions one can associate another function, called the deduced logarithmic function. It is shown that generalized thermostatistics can be formulated in terms of kappa-deformed exponential functions togethe... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119377274 | gr-qc/0203083 | 2002-03-24 | A Geometric Anisotropic Model of Space-Time Based on Finsler Metric | In this work we study an anisotropic model of general relativity based on the framework of Finsler geometry. The observed anisotropy of the microwave background radiation is incorporated in the Finslerian structure of space-time. We also examine the electromagnetic (e.m.) field equations in our space. As a result a mod... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p stavrinos_0",
"name": "Panayiotis [\"C.\"] Stavrinos",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "f diakogiannis_1",
"name": "Foivos [\"I.\"] Diakogiannis",
"publication_history": null,
"h_i... | null |
14773202 | cond-mat/0203511 | 2002-03-25 | Statistical properties of stock order books: empirical results and models | We investigate several statistical properties of the order book of three liquid stocks of the Paris Bourse. The results are to a large degree independent of the stock studied. The most interesting features concern (i) the statistics of incoming limit order prices, which follows a power-law around the current price with... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9712126 | astro-ph/0203439 | 2002-03-25 | Are quasars accreting at super-Eddington rates? | In a previous paper, Collin & Hur\'e (2001), using a sample of Active Galactic Nuclei (AGN) where the mass has been determined by reverberation studies (Kaspi et al. 2000), have shown that if the optical luminosity is emitted by a steady accretion disc, about half of the objects are accreting close to or higher than th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
31112632 | cond-mat/0203505 | 2002-03-25 | Diffusion of Earthquake Aftershock Epicenters, Omori's Law and Generalized Continuous-Time Random Walk Models | The epidemic-type aftershock sequence model (ETAS) is a simple stochastic process modeling seismicity, based on the two best-established empirical laws, the Omori law (power law decay ~1/t^{1+\theta} of seismicity after an earthquake) and Gutenberg-Richter law (power law distribution of earthquake energies). In order t... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119143312 | math/0203262 | 2002-03-25 | First Passage Percolation Has Sublinear Distance Variance | Let $0<a<b<\infty$, and for each edge $e$ of $Z^d$ let $\omega_e=a$ or $\omega_e=b$, each with probability 1/2, independently. This induces a random metric $\dist_\omega$ on the vertices of $Z^d$, called first passage percolation. We prove that for $d>1$ the distance $dist_\omega(0,v)$ from the origin to a vertex $v$, ... | [
"math.PR",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
338196 | math/0203275 | 2002-03-26 | Entropy and the Combinatorial Dimension | We solve Talagrand's entropy problem: the L_2-covering numbers of every uniformly bounded class of functions are exponential in its shattering dimension. This extends Dudley's theorem on classes of {0,1}-valued functions, for which the shattering dimension is the Vapnik-Chervonenkis dimension. In convex geometry, the s... | [
"math.FA"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s mendelson_1",
"name": "Shahar Mendelson",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r vershynin_1",
"name": "Roman Vershynin",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
14479930 | gr-qc/0203096 | 2002-03-26 | On a possible new type of a T odd skewon field linked to electromagnetism | In the framework of generally covariant (pre-metric) electrodynamics (``charge & flux electrodynamics''), the Maxwell equations can be formulated in terms of the electromagnetic excitation $H=({\cal D}, {\cal H})$ and the field strength $F=(E,B)$. If the spacetime relation linking $H$ and $F$ is assumed to be {\em line... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
33575635 | astro-ph/0203467 | 2002-03-26 | GRB 011121: A Massive Star Progenitor | Of the cosmological gamma-ray bursts, GRB 011121 has the lowest redshift, z=0.36. More importantly, the multi-color excess in the afterglow detected in the Hubble Space Telescope (HST) light curves is compelling observational evidence for an underlying supernova. Here we present near-infrared and radio observations of ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14545323 | astro-ph/0203499 | 2002-03-27 | The Palomar/MSU Nearby Star Spectroscopic Survey III: Chromospheric Activity, M-dwarf Ages and the Local Star Formation History | We present high-resolution echelle spectroscopy of 676 nearby M dwarfs. Our measurements include radial velocities, equivalent widths of important chromospheric emission lines, and rotational velocities for rapidly rotating stars. We identify several distinct groups by their H alpha properties, and investigate variatio... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17741532 | hep-th/0203265 | 2002-03-28 | Tachyon Matter | It is shown that classical decay of unstable D-branes in bosonic and superstring theories produces pressureless gas with non-zero energy density. The energy density is stored in the open string fields, even though around the minimum of the tachyon potential there are no open string degrees of freedom. We also give a de... | [
"hep-th",
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7925521 | cond-mat/0203607 | 2002-03-29 | Portfolio Optimization with Spectral Measures of Risk | We study Spectral Measures of Risk from the perspective of portfolio optimization. We derive exact results which extend to general Spectral Measures M_phi the Pflug--Rockafellar--Uryasev methodology for the minimization of alpha--Expected Shortfall. The minimization problem of a spectral measure is shown to be equivale... | [
"cond-mat.stat-mech",
"q-fin.PM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11668676 | math/0203292 | 2002-03-29 | Squarefree values of multivariable polynomials | Given f in Z[x_1,...,x_n], we compute the density of x in Z^n such that f(x) is squarefree, assuming the abc conjecture. Given f,g in Z[x_1,...,x_n], we compute unconditionally the density of x in Z^n such that gcd(f(x),g(x))=1. Function field analogues of both results are proved unconditionally. Finally, assuming the ... | [
"math.NT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17066675 | hep-ph/0203272 | 2002-03-29 | Flux of Atmospheric Neutrinos | Atmospheric neutrinos produced by cosmic-ray interactions in the atmosphere are of interest for several reasons. As a beam for studies of neutrino oscillations they cover a range of parameter space hitherto unexplored by accelerator neutrino beams. The atmospheric neutrinos also constitute an important background and c... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7498989 | math/0204008 | 2002-03-30 | Geometric singular perturbation theory for stochastic differential equations | We consider slow-fast systems of differential equations, in which both the slow and fast variables are perturbed by noise. When the deterministic system admits a uniformly asymptotically stable slow manifold, we show that the sample paths of the stochastic system are concentrated in a neighbourhood of the slow manifold... | [
"math.PR",
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15096325 | hep-ph/0204004 | 2002-03-30 | Leading-twist Single-transverse-spin asymmetries: Drell-Yan and Deep-Inelastic Scattering | Recently, Brodsky, Hwang and Schmidt have proposed a new mechanism that gives a transverse spin symmetry at leading twist in semi-inclusive deep-inelastic scattering. I show that the new mechanism is compatible with factorization and is due to an transverse-spin asymmetry in the k_T distribution of quarks in a hadron (... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16645880 | nucl-th/0204006 | 2002-04-02 | Exact two-particle eigenstates in partially reduced QED | We consider a reformulation of QED in which covariant Green functions are used to solve for the electromagnetic field in terms of the fermion fields. It is shown that exact few-fermion eigenstates of the resulting Hamiltonian can be obtained in the canonical equal-time formalism for the case where there are no free pho... | [
"nucl-th"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "j darewych_1",
"name": "Jurij [\"W.\"] Darewych",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a duviryak_1",
"name": "Askold Duviryak",
"publication_history": null,
"h_index": null,
"num_pa... | null |
119487574 | cond-mat/0204046 | 2002-04-02 | Frictional shear cracks | We discuss crack propagation along the interface between two dissimilar materials. The crack edge separates two states of the interface, ``stick'' and ``slip''. In the slip region we assume that the shear stress is proportional to the sliding velocity, i.e. the linear viscous friction law. In this picture the static fr... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9650144 | quant-ph/0204010 | 2002-04-02 | Quantum Optimization Problems | Krentel [J. Comput. System. Sci., 36, pp.490--509] presented a framework for an NP optimization problem that searches an optimal value among exponentially-many outcomes of polynomial-time computations. This paper expands his framework to a quantum optimization problem using polynomial-time quantum computations and intr... | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t yamakami_1",
"name": "Tomoyuki Yamakami",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
12622828 | astro-ph/0204043 | 2002-04-02 | Gravitational Lenses, the Distance Ladder and the Hubble Constant: A New Dark Matter Problem | In cold dark matter models, a galaxy's dark matter halo is more spatially extended than its stars. However, even though the five well-constrained gravitational lenses with time delay measurements must have similar dark matter distributions, reconciling the Hubble constant estimated from their time delays with local est... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c kochanek_1",
"name": "Christopher [\"S.\"] Kochanek",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
2195150 | nlin/0204004 | 2002-04-03 | Bailout Embeddings and Neutrally Buoyant Particles in Three-Dimensional Flows | We use the bailout embeddings of three-dimensional volume-preserving maps to study qualitatively the dy- namics of small spherical neutrally buoyant impurities suspended in a time-periodic incompressible fluid flow. The accumulation of impurities in tubular vortical structures, the detachment of particles from fluid tr... | [
"nlin.CD",
"physics.flu-dyn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j cartwright_1",
"name": "Julyan [\"H.\",\"E.\"] Cartwright",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m magnasco_1",
"name": "Marcelo [\"O.\"] Magnasco",
"publication_history": null,
"h_ind... | null |
37373900 | quant-ph/0204013 | 2002-04-03 | Quantum search by measurement | We propose a quantum algorithm for solving combinatorial search problems that uses only a sequence of measurements. The algorithm is similar in spirit to quantum computation by adiabatic evolution, in that the goal is to remain in the ground state of a time-varying Hamiltonian. Indeed, we show that the running times of... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
38204577 | astro-ph/0204055 | 2002-04-03 | Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey | We develop a new method to constrain the star formation histories, dust attenuation and stellar masses of galaxies. It is based on two stellar absorption line indices, the 4000 Angstrom break strength and the Balmer absorption line index Hdelta_A. Together, these indices allow us to constrain the mean stellar ages of g... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16921597 | astro-ph/0204088 | 2002-04-04 | VLA Observations of H I in the Helix Nebula (NGC 7293) | We report the detection of 21-cm line emission from H I in the planetary nebula NGC 7293 (the Helix). The observations, made with the Very Large Array, show the presence of a ring of atomic hydrogen that is associated with the outer portion of the ionized nebula. This ring is most probably gas ejected in the AGB phase ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15169147 | astro-ph/0204077 | 2002-04-04 | Orbital dynamics of three-dimensional bars: I. The backbone of 3D bars. A fiducial case | In this series of papers we investigate the orbital structure of 3D models representing barred galaxies. In the present introductory paper we use a fiducial case to describe all families of periodic orbits that may play a role in the morphology of three-dimensional bars. We show that, in a 3D bar, the backbone of the o... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
47863 | quant-ph/0204022 | 2002-04-04 | A New Protocol and Lower Bounds for Quantum Coin Flipping | We present a new protocol and two lower bounds for quantum coin flipping. In our protocol, no dishonest party can achieve one outcome with probability more than 0.75. Then, we show that our protocol is optimal for a certain type of quantum protocols. For arbitrary quantum protocols, we show that if a protocol achieves ... | [
"quant-ph",
"cs.CR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16150739 | hep-th/0204045 | 2002-04-04 | Exactly Marginal Deformations of N=4 SYM and of its Supersymmetric Orbifold Descendants | In this paper we study exactly marginal deformations of field theories living on D3-branes at low energies. These theories include N=4 supersymmetric Yang-Mills theory and theories obtained from it via the orbifolding procedure. We restrict ourselves only to orbifolds and deformations which leave some supersymmetry unb... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6527643 | astro-ph/0204078 | 2002-04-04 | Orbital dynamics of three-dimensional bars: II. Investigation of the parameter space | We investigate the orbital structure in a class of 3D models of barred galaxies. We consider different values of the pattern speed, of the strength of the bar and of the parameters of the central bulge of the galactic model. The morphology of the stable orbits in the bar region is associated with the degree of folding ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
41923447 | quant-ph/0204025 | 2002-04-04 | Quantum communication complexity of symmetric predicates | We completely (that is, up to a logarithmic factor) characterize the bounded-error quantum communication complexity of every predicate $f(x,y)$ depending only on $|x\cap y|$ ($x,y\subseteq [n]$). Namely, for a predicate $D$ on $\{0,1,...,n\}$ let $\ell_0(D)\df \max\{\ell : 1\leq\ell\leq n/2\land D(\ell)\not\equiv D(\el... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7894864 | astro-ph/0204100 | 2002-04-05 | A possible contribution to CMB anisotropies at high l from primordial voids | We present preliminary results of an analysis into the effects of primordial voids on the cosmic microwave background (CMB). We show that an inflationary bubble model of void formation predicts excess power in the CMB angular power spectrum that peaks between 2000 < l < 3000. Therefore, voids that exist on or close to ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7412104 | hep-ph/0204067 | 2002-04-05 | Kaluza-Klein Effects on Higgs Physics in Universal Extra Dimensions | We examine the virtual effects of Kaluza-Klein (KK) states on Higgs physics in universal extra dimension models. We study the partial widths $\Gamma_{h \to gg}$, $\Gamma_{h \to \gamma \gamma}$, and $\Gamma_{h \to \gamma Z}$, which are relevant for Higgs production and detection in future collider experiments. These int... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18691699 | astro-ph/0204118 | 2002-04-08 | SPH compressible turbulence | In this paper an SPH version of the alpha turbulence model devised by Holm and his colleagues is formulated for compressible flow with a resolution that varies in space and time. The alpha model involves two velocity fields. One velocity field is obtained from the momentum equation, the other by averaging this velocity... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118870612 | hep-ph/0204089 | 2002-04-08 | Radiative M1-decays of heavy-light mesons in the relativistic quark model | Radiative magnetic dipole decays of heavy-light vector mesons into pseudoscalar mesons V -> P\gamma are considered within the relativistic quark model. The light quark is treated completely relativistically, while for the heavy quark the 1/m_Q expansion is used. It is found that relativistic effects result in a signifi... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3498118 | hep-ph/0204087 | 2002-04-08 | Physics potential and experimental challenges of the LHC luminosity upgrade | We discuss the physics potential and the experimental challenges of an upgraded LHC running at an instantaneous luminosity of 10**35 cm-2s-1. The detector R&D needed to operate ATLAS and CMS in a very high radiation environment and the expected detector performance are discussed. A few examples of the increased physics... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f gianotti_2",
"name": "Fabiola Gianotti",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m mangano_1",
"name": "Michelangelo Mangano",
"publication_history": null,
"h_index": null,
"num_paper... | null |
1366052 | astro-ph/0204147 | 2002-04-09 | X-ray background measurements with XMM-Newton EPIC | We discuss the methods used to compile a high signal-to-noise dataset representative of both the instrumental and cosmic background signal measured at high galactic latitude by the XMM-Newton EPIC cameras. The characteristics of the EPIC background are described and the potential applications of the derived dataset in ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7333754 | cs/0204019 | 2002-04-09 | Fast Universalization of Investment Strategies with Provably Good Relative Returns | A universalization of a parameterized investment strategy is an online algorithm whose average daily performance approaches that of the strategy operating with the optimal parameters determined offline in hindsight. We present a general framework for universalizing investment strategies and discuss conditions under whi... | [
"cs.CE",
"cs.DS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k akcoglu_0",
"name": "Karhan Akcoglu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p drineas_1",
"name": "Petros Drineas",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
14012234 | astro-ph/0204182 | 2002-04-10 | Detailed Structural Decomposition of Galaxy Images | We present a two-dimensional (2-D) fitting algorithm (GALFIT) designed to extract structural components from galaxy images, with emphasis on closely modeling light profiles of spatially well-resolved, nearby galaxies observed with the Hubble Space Telescope. Our algorithm improves on previous techniques in two areas, b... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16833848 | cond-mat/0204280 | 2002-04-12 | The Thermodynamic Limit in Mean Field Spin Glass Models | We present a simple strategy in order to show the existence and uniqueness of the infinite volume limit of thermodynamic quantities, for a large class of mean field disordered models, as for example the Sherrington-Kirkpatrick model, and the Derrida p-spin model. The main argument is based on a smooth interpolation bet... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
236443895 | hep-ex/0204017 | 2002-04-12 | Search for Lepton-Flavor-Violating Decays of B Mesons | We have searched a sample of 9.6 million BB-bar events for the lepton-flavor-violating decays B --> h e^{+-} mu^{-+}, B^+ --> h^- e^+ e^+, B^+ --> h^- e^+ mu^+, and B^+ --> h^- mu^+ mu^+, where h is pi, K, rho, and K*(892), a total of sixteen modes. We find no evidence for these decays, and place 90% confidence level u... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
225 | cs/0204031 | 2002-04-12 | A Dynamic Approach to Characterizing Termination of General Logic Programs | We present a new characterization of termination of general logic programs. Most existing termination analysis approaches rely on some static information about the structure of the source code of a logic program, such as modes/types, norms/level mappings, models/interargument relations, and the like. We propose a dynam... | [
"cs.LO",
"cs.PL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5740827 | cond-mat/0204331 | 2002-04-15 | Option Pricing Formulas based on a non-Gaussian Stock Price Model | Options are financial instruments that depend on the underlying stock. We explain their non-Gaussian fluctuations using the nonextensive thermodynamics parameter $q$. A generalized form of the Black-Scholes (B-S) partial differential equation, and some closed-form solutions are obtained. The standard B-S equation ($q=1... | [
"cond-mat.stat-mech",
"q-fin.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117091527 | nlin/0204030 | 2002-04-15 | Focusing Revisited: an MN-dynamics Approach | The nonlinear Schr{\"o}dinger (NLS) equation is a ubiquitous example of an envelope wave equation for conservative, dispersive systems. We revisit here the problem of self-similar focusing of waves in the case of the focusing NLS equation through the prism of a dynamic renormalization technique (MN dynamics) that facto... | [
"nlin.PS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c siettos_1",
"name": "Constantinos [\"I.\"] Siettos",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "i kevrekidis_1",
"name": "Ioannis [\"G.\"] Kevrekidis",
"publication_history": null,
"h_index"... | null |
18047961 | math/0204198 | 2002-04-15 | Central configurations, symmetries and fixed points | Planar central configurations can be seen as critical points of the reduced potential or solutions of a system of equations. By the homogeneity and invariance of the potential with respect to SO(2), it is possible to see that the SO(2)-orbits of central configurations are fixed points of a suitable map f. The purpose o... | [
"math.DS",
"math.AT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
73569973 | cond-mat/0204344 | 2002-04-16 | Scale-free Networks from Optimal Design | A large number of complex networks, both natural and artificial, share the presence of highly heterogeneous, scale-free degree distributions. A few mechanisms for the emergence of such patterns have been suggested, optimization not being one of them. In this letter we present the first evidence for the emergence of sca... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119389288 | hep-th/0204125 | 2002-04-16 | Theta dependence of SU(N) gauge theories | We study the $\theta$ dependence of four-dimensional SU($N$) gauge theories, for $N\geq 3$ and in the large-N limit. We use numerical simulations of the Wilson lattice formulation of gauge theories to compute the first few terms of the expansion of the ground-state energy $F(\theta)$ around $\theta=0$, $F(\theta)-F(0) ... | [
"hep-th",
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h panagopoulos_1",
"name": "Haralambos Panagopoulos",
"publication_history": null,
"h_index": null,
... | null |
17065895 | hep-ph/0204192 | 2002-04-16 | The MSSM Parameter Space with Non-Universal Higgs Masses | Without assuming that Higgs masses have the same values as other scalar masses at the input GUT scale, we combine constraints on the minimal supersymmetric extension of the Standard Model (MSSM) coming from the cold dark matter density with the limits from direct searches at accelerators such as LEP, indirect measureme... | [
"hep-ph",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3058984 | cs/0204037 | 2002-04-16 | Kolmogorov's Structure Functions and Model Selection | In 1974 Kolmogorov proposed a non-probabilistic approach to statistics and model selection. Let data be finite binary strings and models be finite sets of binary strings. Consider model classes consisting of models of given maximal (Kolmogorov) complexity. The ``structure function'' of the given data expresses the rela... | [
"cs.CC",
"math.PR",
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16440825 | astro-ph/0204270 | 2002-04-16 | Interstellar Scintillation Velocities of a Relativistic Binary PSR B1534+12 and Three Other Millisecond Pulsars | We present interstellar scintillation velocity measurements for four millisecond pulsars obtained from long-term monitoring observations with the Arecibo radio telescope at 430 MHz. We also derive explicit expressions that relate the measured scintillation velocity to the effective transverse velocity responsible for t... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16327017 | astro-ph/0204285 | 2002-04-17 | High resolution spectroscopy of ultracool M dwarfs | (abridged) We present high-resolution echelle spectroscopy of a photometricaly-selected sample if thirty-nine dwarfs with spectral types between M6.5 and L0.5. Two stars, 2MASSI 0253202+271333 and 2MASSW 0952219-192431, are double-lined spectroscopic binaries. We have used our observations to search for Li I 6708 A abs... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16748982 | astro-ph/0204280 | 2002-04-17 | Correcting for lensing bias in the Hubble diagram | Gravitational lensing will cause a dispersion in the Hubble diagram for high redshift sources. This effect will introduce a bias in the cosmological parameter determination using the distance-redshift relation for Type Ia supernovae. In this note we show how one can diagnose and correct for this bias when doing precisi... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15874686 | astro-ph/0204297 | 2002-04-17 | ESI, a new Keck Observatory echellette spectrograph and imager | The Echellette Spectrograph and Imager (ESI) is a multipurpose instrument which has been delivered by the Instrument Development Laboratory of Lick Observatory for use at the Cassegrain focus of the Keck II telescope. ESI saw first light on August 29, 1999. ESI is a multi-mode instrument that enables the observer to se... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18994361 | astro-ph/0204349 | 2002-04-19 | Fourier Techniques for Very Long Astrophysical Time Series Analysis | In this paper, we present an assortment of both standard and advanced Fourier techniques that are useful in the analysis of astrophysical time series of very long duration -- where the observation time is much greater than the time resolution of the individual data points. We begin by reviewing the operational characte... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119091936 | astro-ph/0204342 | 2002-04-19 | Brown Dwarfs and the TW Hya Association | I report the results of a survey for low-mass (0.030 <~ M <~ 0.013 M_solar) brown dwarfs in the direction of the TW Hya association using 2MASS. Two late-M dwarfs show signs of low surface gravity and are strong candidates to be young, very-low-mass (M ~ 0.025 M_solar) brown dwarfs related to the TW Hya association. 2M... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5984389 | hep-ph/0204244 | 2002-04-22 | Matching NLO QCD computations and parton shower simulations | We propose a method for matching the next-to-leading order (NLO) calculation of a given QCD process with a parton shower Monte Carlo (MC) simulation. The method has the following features: fully exclusive events are generated, with hadronization according to the MC model; total exclusive rates are accurate to NLO; NLO ... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14352306 | cond-mat/0204516 | 2002-04-24 | Quantum feedback control of a solid-state qubit | We have studied theoretically the basic operation of a quantum feedback loop designed to maintain a desired phase of quantum coherent oscillations in a single solid-state qubit. The degree of oscillations synchronization with external harmonic signal is calculated as a function of feedback strength, taking into account... | [
"cond-mat.mes-hall",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17087916 | astro-ph/0204408 | 2002-04-24 | Element abundances in cool white dwarfs. II. Ultraviolet observations of DZ white dwarfs | We present a small data base of homogeneously derived photospheric element abundances of DZ white dwarfs and related objects. Our previous investigations are supplemented with the analysis of ultraviolet spectra for nine white dwarfs. Of particular interest is the detection of Lalpha absorption in van Maanen 2 and a de... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
286853 | nlin/0204057 | 2002-04-24 | Coupled Replicator Equations for the Dynamics of Learning in Multiagent Systems | Starting with a group of reinforcement-learning agents we derive coupled replicator equations that describe the dynamics of collective learning in multiagent systems. We show that, although agents model their environment in a self-interested way without sharing knowledge, a game dynamics emerges naturally through envir... | [
"nlin.AO",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14533474 | cs/0204050 | 2002-04-25 | Computing Homotopic Shortest Paths Efficiently | This paper addresses the problem of finding shortest paths homotopic to a given disjoint set of paths that wind amongst point obstacles in the plane. We present a faster algorithm than previously known. | [
"cs.CG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a efrat_2",
"name": "Alon Efrat",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "s kobourov_1",
"name": "Stephen [\"G.\"] Kobourov",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
8762739 | math/0204325 | 2002-04-26 | Determinantal probability measures | Determinantal point processes have arisen in diverse settings in recent years and have been investigated intensively. We study basic combinatorial and probabilistic aspects in the discrete case. Our main results concern relationships with matroids, stochastic domination, negative association, completeness for infinite ... | [
"math.PR",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9891660 | astro-ph/0204478 | 2002-04-29 | Planetary Microlensing at High Magnification | Simulations of planetary microlensing at high magnification that were carried out on a cluster computer are presented. It was found that the perturbations due to two-thirds of all planets occur in the time interval [-0.5t_FWHM, 0.5t_ FWHM] with respect to the peak of the microlensing light curve, where t_FWHM is typica... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119467733 | astro-ph/0204498 | 2002-04-29 | Supernova 1998bw - The final phases | The probable association with GRB 980425 immediately put SN 1998bw at the forefront of supernova research. Here, we present revised late-time BVRI light curves of the supernova, based on template images taken at the VLT. To follow the supernova to the very last observable phases we have used HST/STIS. Deep images taken... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13456700 | hep-ph/0204328 | 2002-04-29 | K-matrix analysis of the (IJ^{PC}=00^{++})-wave in the mass region below 1900 MeV | We present the results of the current analysis of the partial wave IJ^{PC}=00^{++} based on the available data for meson spectra (pi-pi, K\bar K, eta-eta, eta-eta', pi-pi-pi-pi). In the framework of the K-matrix approach, the analytical amplitude has been restored in the mass region 280 MeV< \sqrt s <1900 MeV. The foll... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119645051 | math/0204356 | 2002-04-30 | PALP: A Package for Analyzing Lattice Polytopes with Applications to Toric Geometry | We describe our package PALP of C programs for calculations with lattice polytopes and applications to toric geometry, which is freely available on the internet. It contains routines for vertex and facet enumeration, computation of incidences and symmetries, as well as completion of the set of lattice points in the con... | [
"math.NA",
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18262569 | astro-ph/0204519 | 2002-04-30 | SCUBA observations of galaxies with metallicity measurements: a new method for determining the relation between submm luminosity and dust mass | Using a new technique we have determined a value for the constant of proportionality between submillimetre emission and dust mass, the dust mass absorption coefficient at 850 microns. Our method has an advantage over previous methods in that we avoid assumptions about the properties of dust in the interstellar medium. ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15291065 | cond-mat/0205009 | 2002-04-30 | The spread of epidemic disease on networks | The study of social networks, and in particular the spread of disease on networks, has attracted considerable recent attention in the physics community. In this paper, we show that a large class of standard epidemiological models, the so-called susceptible/infective/removed (SIR) models can be solved exactly on a wide ... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn",
"q-bio"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14136427 | gr-qc/0204094 | 2002-04-30 | Runaway dilaton and equivalence principle violations | In a recently proposed scenario, where the dilaton decouples while cosmologically attracted towards infinite bare string coupling, its residual interactions can be related to the amplitude of density fluctuations generated during inflation, and are large enough to be detectable through a modest improvement on present t... | [
"gr-qc",
"astro-ph",
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10736646 | math/0205049 | 2002-05-01 | The asymptotic complexity of partial sorting -- How to learn large posets by pairwise comparisons | The expected number of pairwise comparisons needed to learn a partial order on n elements is shown to be at least n*n/4-o(n*n), and an algorithm is given that needs only n*n/4+o(n*n) comparisons on average. In addition, the optimal strategy for learning a poset with four elements is presented. | [
"math.CO",
"cs.CC",
"math.OC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j heitzig_1",
"name": "Jobst Heitzig",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
17294203 | astro-ph/0205025 | 2002-05-02 | The DEEP Groth Strip Survey II. Hubble Space Telescope Structural Parameters of Galaxies in the Groth Strip | The quantitative morphological classification of distant galaxies is essential to the understanding of the evolution of galaxies over the history of the Universe. This paper presents Hubble Space Telescope WFPC2 F606W and F814W photometric structural parameters for 7450 galaxies in the ``Groth Strip.'' These parameters... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119002950 | astro-ph/0205026 | 2002-05-02 | The Kinematics and Metallicity of the M31 Globular Cluster System | With the ultimate aim of distinguishing between various models describing the formation of galaxy halos (e.g. radial or multi-phase collapse, random mergers), we have completed a spectroscopic study of the globular cluster system of M31. We present the results of deep, intermediate-resolution, fibre-optic spectroscopy ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15938873 | cond-mat/0205078 | 2002-05-03 | A Theory of Non_Gaussian Option Pricing | Option pricing formulas are derived from a non-Gaussian model of stock returns. Fluctuations are assumed to evolve according to a nonlinear Fokker-Planck equation which maximizes the Tsallis nonextensive entropy of index $q$. A generalized form of the Black-Scholes differential equation is found, and we derive a martin... | [
"cond-mat.stat-mech",
"q-fin.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119485007 | astro-ph/0205050 | 2002-05-03 | Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs | Trigonometric parallax determinations are presented for 28 late type dwarfs and brown dwarfs, including eight M dwarfs with spectral types between M7 and M9.5, 17 L dwarfs with spectral types between L0 and L8, and three T dwarfs. Broadband photometry at CCD wavelengths (VRIz) and/or near-IR wavelengths (JHK) are prese... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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