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 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
14207258 | astro-ph/0205080 | 2002-05-06 | Theoretical isochrones in several photometric systems I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets | We provide tables of theoretical isochrones in several photometric systems. To this aim, the following steps are followed: (1) First, we re-write the formalism for converting synthetic stellar spectra into tables of bolometric corrections. The resulting formulas can be applied to any photometric system, provided that t... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118936516 | hep-ph/0205056 | 2002-05-06 | Invisible decay of orthopositronium vs extra dimensions | In models of Randall-Sundrum type orthopositronium (o-Ps) can disappear due to tunnelling into additional dimension(s). The experimental signature of this effect is the invisible decay of orthopositronium. We point out that this process may occur at a rate within two or three orders of magnitude of the present experime... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s gninenko_1",
"name": "Sergei [\"N.\"] Gninenko",
"publication_history": null,
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},
{
"author_id": "n krasnikov_1",
"name": "Nikolai [\"V.\"] Krasnikov",
"publication_history": null,
"h_index": null... | null |
119162483 | math-ph/0205010 | 2002-05-07 | Moments and Cumulants of Polynomial random variables on unitary groups, the Itzykson-Zuber integral and free probability | We consider integrals on unitary groups $U_d$ of the form $$\int_{U_d}U_{i_1j_1}... U_{i_qj_q}U^*_{j'_{1}i'_{1}} ... U^*_{j'_{q'}i'_{q'}}dU$$ We give an explicit formula in terms of characters of symmetric groups and Schur functions, which allows us to rederive an asymptotic expansion as $d\to\infty$. Using this we red... | [
"math-ph",
"math.MP",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3191804 | quant-ph/0205035 | 2002-05-07 | A simple formula for the average gate fidelity of a quantum dynamical operation | This note presents a simple formula for the average fidelity between a unitary quantum gate and a general quantum operation on a qudit, generalizing the formula for qubits found by Bowdrey et al [Phys. Lett. A 294, 258 (2002)]. This formula may be useful for experimental determination of average gate fidelity. We also ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17296825 | hep-ph/0205065 | 2002-05-07 | Photon polarization in radiative B decays | We study decay distributions in B -> K pi pi gamma, combining contributions from several overlapping resonances in a K pi pi mass range near 1400 MeV, (1^+) K_1(1400), (2^+) K^*_2(1430) and (1^-) K^*(1410). A method is proposed for using these distributions to determine a photon polarization parameter in the effective ... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18867464 | cond-mat/0205123 | 2002-05-07 | Broken Replica Symmetry Bounds in the Mean Field Spin Glass Model | By using a simple interpolation argument, in previous work we have proven the existence of the thermodynamic limit, for mean field disordered models, including the Sherrington-Kirkpatrick model, and the Derrida p-spin model. Here we extend this argument in order to compare the limiting free energy with the expression g... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118898274 | cond-mat/0205156 | 2002-05-08 | On testing the violation of the Clausius inequality in nanoscale electric circuits | The Clausius inequality, one of the classical formulations of the second law, was recently found to be violated in the quantum regime. Here this result is formulated in the context of a mesoscopic or nanoscale linear RLC circuit interacting with a thermal bath. Previous experiments in this and related fields are analyz... | [
"cond-mat.mes-hall",
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a allahverdyan_1",
"name": "Armen [\"E.\"] Allahverdyan",
"publication_history": null,
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},
{
"author_id": "t nieuwenhuizen_1",
"name": "Theo [\"M.\"] Nieuwenhuizen",
"publication_history": null,
"h_... | null |
14959475 | quant-ph/0205039 | 2002-05-08 | Quantum Mechanics as Quantum Information (and only a little more) | In this paper, I try once again to cause some good-natured trouble. The issue remains, when will we ever stop burdening the taxpayer with conferences devoted to the quantum foundations? The suspicion is expressed that no end will be in sight until a means is found to reduce quantum theory to two or three statements of ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9283490 | math/0205093 | 2002-05-09 | Poisson Process Partition Calculus with applications to Exchangeable models and Bayesian Nonparametrics | This article discusses the usage of a partiton based Fubini calculus for Poisson processes. The approach is an amplification of Bayesian techniques developed in Lo and Weng for gamma/Dirichlet processes. Applications to models are considered which all fall within an inhomogeneous spatial extension of the size biased fr... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13636015 | nlin/0205018 | 2002-05-09 | The Onset of Synchronization in Systems of Globally Coupled Chaotic and Periodic Oscillators | A general stability analysis is presented for the determination of the transition from incoherent to coherent behavior in an ensemble of globally coupled, heterogeneous, continuous-time dynamical systems. The formalism allows for the simultaneous presence of ensemble members exhibiting chaotic and periodic behavior, an... | [
"nlin.CD"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e ott_1",
"name": "Edward Ott",
"publication_history": null,
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},
{
"author_id": "p so_1",
"name": "Paul So",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations"... | null |
2208396 | cs/0205008 | 2002-05-09 | Improved Bicriteria Existence Theorems for Scheduling | Two common objectives for evaluating a schedule are the makespan, or schedule length, and the average completion time. This short note gives improved bounds on the existence of schedules that simultaneously optimize both criteria. In particular, for any rho> 0, there exists a schedule of makespan at most 1+rho times th... | [
"cs.DS",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j aslam_1",
"name": "Javed [\"A.\"] Aslam",
"publication_history": null,
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},
{
"author_id": "a lehman_0",
"name": "April [\"Rasala\"] Lehman",
"publication_history": null,
"h_index": null,
"num_... | null |
5229130 | astro-ph/0205137 | 2002-05-09 | The Effect of Cooling and Preheating on the X-ray Properties of Clusters of Galaxies | We calculate X-ray properties of present-day galaxy clusters from hydrodynamical cosmological simulations of the LCDM cosmology and compare these with recent X-ray observations. Results from three simulations are presented, each of which uses the same initial conditions: a standard adiabatic, Non-radiative model, a Rad... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6976248 | cond-mat/0205188 | 2002-05-09 | Global culture: A noise induced transition in finite systems | We analyze the effect of cultural drift, modeled as noise, in Axelrod's model for the dissemination of culture. The disordered multicultural configurations are found to be metastable. This general result is proven rigorously in d=1, where the dynamics is described in terms of a Lyapunov potential. In d=2, the dynamics ... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k klemm_1",
"name": "Konstantin Klemm",
"publication_history": null,
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"num_citations": null
},
{
"author_id": "v eguíluz_1",
"name": "Víctor [\"M.\"] Eguíluz",
"publication_history": null,
"h_index": null,
"num_paper... | null |
15286305 | hep-ph/0205106 | 2002-05-10 | Particle Physics Probes Of Extra Spacetime Dimensions | The possibility that spacetime is extended beyond the familiar 3+1-dimensions has intrigued physicists for a century. Indeed, the consequences of a dimensionally richer spacetime would be profound. Recently, new theories with higher dimensional spacetimes have been developed to resolve the hierarchy problem in particle... | [
"hep-ph",
"hep-ex",
"hep-th"
] | null | [
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] | [] | [
{
"author_id": "j hewett_1",
"name": "Joanne [\"L.\"] Hewett",
"publication_history": null,
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},
{
"author_id": "m spiropulu_1",
"name": "Maria Spiropulu",
"publication_history": null,
"h_index": null,
"num_pape... | null |
10377793 | physics/0205031 | 2002-05-10 | A study of accuracy and precision in oligonucleotide arrays: extracting more signal at large concentrations | Despite the success and popularity of oligonucleotide arrays as a high-throughput technique for measuring mRNA expression levels, quantitative calibration studies have until now been limited. The main reason is that suitable data was not available. However, calibration data recently produced by Affymetrix now permits d... | [
"physics.bio-ph",
"q-bio"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "7834100",
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}
] | [
{
"author_id": "f naef_1",
"name": "Félix Naef",
"publication_history": null,
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},
{
"author_id": "n socci_0",
"name": "Nicholas [\"D.\"] Socci",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
16322476 | astro-ph/0205161 | 2002-05-10 | New Understanding of Large Magellanic Cloud Structure, Dynamics and Orbit from Carbon Star Kinematics | We derive general expressions for the LMC velocity field which we fit to kinematical data for 1041 carbon stars. We demonstrate that all previous studies of LMC kinematics have made unnecessary over-simplifications that have led to incorrect estimates of important structural parameters. We compile and improve LMC prope... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
273081 | cs/0205014 | 2002-05-11 | Ultimate approximations in nonmonotonic knowledge representation systems | We study fixpoints of operators on lattices. To this end we introduce the notion of an approximation of an operator. We order approximations by means of a precision ordering. We show that each lattice operator O has a unique most precise or ultimate approximation. We demonstrate that fixpoints of this ultimate approxim... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118754207 | hep-ph/0205112 | 2002-05-12 | The decays of $B_c$ meson to P-wave charmonium $\chi_c(h_c)$ and to leptons with gluon bremsstrahlung | Theoretical computations on the decays of $B_c$ meson to $P$-wave charmonium $\chi_c$ or $h_c$ with some particle(s) else and on the decays of $B_c$ meson to leptons with gluon bremsstrahlung, and the results as well are outlined. | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1270448 | cs/0205017 | 2002-05-13 | Ellogon: A New Text Engineering Platform | This paper presents Ellogon, a multi-lingual, cross-platform, general-purpose text engineering environment. Ellogon was designed in order to aid both researchers in natural language processing, as well as companies that produce language engineering systems for the end-user. Ellogon provides a powerful TIPSTER-based inf... | [
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g petasis_1",
"name": "Georgios Petasis",
"publication_history": null,
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},
{
"author_id": "v karkaletsis_1",
"name": "Vangelis Karkaletsis",
"publication_history": null,
"h_index": null,
"num_pa... | null |
14481891 | hep-th/0205111 | 2002-05-13 | Violations of the equivalence principle in a dilaton-runaway scenario | We explore a version of the cosmological dilaton-fixing and decoupling mechanism in which the dilaton-dependence of the low-energy effective action is extremized for infinitely large values of the bare string coupling $g_s^2 = e^{\phi}$. We study the efficiency with which the dilaton $\phi$ runs away towards its ``fixe... | [
"hep-th",
"astro-ph",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15185193 | cond-mat/0205280 | 2002-05-14 | Theory of Quantum Annealing of an Ising Spin Glass | Probing the lowest energy configuration of a complex system by quantum annealing was recently found to be more effective than its classical, thermal counterpart. Comparing classical and quantum Monte Carlo annealing protocols on the random two-dimensional Ising model we confirm the superiority of quantum annealing rela... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5797901 | quant-ph/0205083 | 2002-05-14 | Quantum Random Walks Hit Exponentially Faster | We show that the hitting time of the discrete time quantum random walk on the n-bit hypercube from one corner to its opposite is polynomial in n. This gives the first exponential quantum-classical gap in the hitting time of discrete quantum random walks. We provide the framework for quantum hitting time and give two al... | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7809911 | quant-ph/0205095 | 2002-05-15 | Circuit for Shor's algorithm using 2n+3 qubits | We try to minimize the number of qubits needed to factor an integer of n bits using Shor's algorithm on a quantum computer. We introduce a circuit which uses 2n+3 qubits and O(n^3 lg(n)) elementary quantum gates in a depth of O(n^3) to implement the factorization algorithm. The circuit is computable in polynomial time ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119514400 | gr-qc/0205064 | 2002-05-15 | Hyperbolicity of the BSSN system of Einstein evolution equations | We discuss an equivalence between the Baumgarte-Shapiro-Shibata-Nakamura (BSSN) formulation of the Einstein evolution equations, a subfamiliy of the Kidder--Scheel--Teukolsky formulation, and other strongly or symmetric hyperbolic first order systems with fixed shift and densitized lapse. This allows us to show under w... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "o sarbach_1",
"name": "O [\"livier\"] Sarbach",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g calabrese_1",
"name": "Gioel Calabrese",
"publication_history": null,
"h_index": null,
"num_pap... | null |
14416133 | cond-mat/0205350 | 2002-05-16 | Electron transport through double quantum dots | Electron transport experiments on two lateral quantum dots coupled in series are reviewed. An introduction to the charge stability diagram is given in terms of the electrochemical potentials of both dots. Resonant tunneling experiments show that the double dot geometry allows for an accurate determination of the intrin... | [
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18433425 | astro-ph/0205280 | 2002-05-16 | General Relativistic Geodetic Spin Precession in Binary Pulsar B1913+16: Mapping the Emission Beam in Two Dimensions | We have carefully measured the pulse profile of the binary pulsar PSR B1913+16 at 21 cm wavelength for twenty years, in order to search for variations that result from general relativistic geodetic precession of the spin axis. The profile width is found to decrease with time in its inner regions, while staying essentia... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119007629 | gr-qc/0205073 | 2002-05-16 | Stability properties of a formulation of Einstein's equations | We study the stability properties of the Kidder-Scheel-Teukolsky (KST) many-parameter formulation of Einstein's equations for weak gravitational waves on flat space-time from a continuum and numerical point of view. At the continuum, performing a linearized analysis of the equations around flat spacetime, it turns out ... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g calabrese_1",
"name": "Gioel Calabrese",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j pullin_1",
"name": "Jorge Pullin",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
2096348 | cond-mat/0205380 | 2002-05-17 | Specificity and stability in topology of protein networks | Molecular networks guide the biochemistry of a living cell on multiple levels: its metabolic and signalling pathways are shaped by the network of interacting proteins, whose production, in turn, is controlled by the genetic regulatory network. To address topological properties of these two networks we quantify correlat... | [
"cond-mat.soft",
"cond-mat.stat-mech",
"q-bio"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6020635 | cs/0205037 | 2002-05-17 | A Primal-Dual Parallel Approximation Technique Applied to Weighted Set and Vertex Cover | The paper describes a simple deterministic parallel/distributed (2+epsilon)-approximation algorithm for the minimum-weight vertex-cover problem and its dual (edge/element packing). | [
"cs.DS",
"cs.DC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
466762 | cond-mat/0205383 | 2002-05-17 | Identity and Search in Social Networks | Social networks have the surprising property of being "searchable": Ordinary people are capable of directing messages through their network of acquaintances to reach a specific but distant target person in only a few steps. We present a model that offers an explanation of social network searchability in terms of recogn... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
93023 | cs/0205030 | 2002-05-17 | Approximation Algorithms for Covering/Packing Integer Programs | Given matrices A and B and vectors a, b, c and d, all with non-negative entries, we consider the problem of computing min {c.x: x in Z^n_+, Ax > a, Bx < b, x < d}. We give a bicriteria-approximation algorithm that, given epsilon in (0, 1], finds a solution of cost O(ln(m)/epsilon^2) times optimal, meeting the covering ... | [
"cs.DS",
"cs.DM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
219306244 | cs/0205028 | 2002-05-17 | NLTK: The Natural Language Toolkit | NLTK, the Natural Language Toolkit, is a suite of open source program modules, tutorials and problem sets, providing ready-to-use computational linguistics courseware. NLTK covers symbolic and statistical natural language processing, and is interfaced to annotated corpora. Students augment and replace existing componen... | [
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1464969 | cs/0205036 | 2002-05-17 | Randomized Rounding without Solving the Linear Program | Randomized rounding is a standard method, based on the probabilistic method, for designing combinatorial approximation algorithms. In Raghavan's seminal paper introducing the method (1988), he writes: "The time taken to solve the linear program relaxations of the integer programs dominates the net running time theoreti... | [
"cs.DS",
"cs.DM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119346336 | astro-ph/0205304 | 2002-05-17 | Search for neutrinos from Gamma-Ray Bursts using Super-Kamiokande | Using the Super-Kamiokande neutrino observatory, a search was conducted for neutrinos produced in coincidence with gamma-ray bursts observed by the BATSE detector. Super-Kamiokande data in the neutrino energy range of 7 MeV ~ 100 TeV were analyzed. For gamma-ray bursts that occurred between 1996 April and 2000 May, no ... | [
"astro-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s fukuda_2",
"name": "S. Fukuda",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "y fukuda_5",
"name": "Y. Fukuda",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_ci... | null |
3260905 | cs/0205038 | 2002-05-18 | Competitive Paging Algorithms | The paging problem is that of deciding which pages to keep in a memory of k pages in order to minimize the number of page faults. This paper introduces the marking algorithm, a simple randomized on-line algorithm for the paging problem, and gives a proof that its performance guarantee (competitive ratio) is O(log k). I... | [
"cs.DS",
"cs.NI"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
206793356 | cs/0205045 | 2002-05-18 | Balancing Minimum Spanning and Shortest Path Trees | This paper give a simple linear-time algorithm that, given a weighted digraph, finds a spanning tree that simultaneously approximates a shortest-path tree and a minimum spanning tree. The algorithm provides a continuous trade-off: given the two trees and epsilon > 0, the algorithm returns a spanning tree in which the d... | [
"cs.DS",
"cs.DM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15465261 | cs/0205039 | 2002-05-18 | Sequential and Parallel Algorithms for Mixed Packing and Covering | Mixed packing and covering problems are problems that can be formulated as linear programs using only non-negative coefficients. Examples include multicommodity network flow, the Held-Karp lower bound on TSP, fractional relaxations of set cover, bin-packing, knapsack, scheduling problems, minimum-weight triangulation, ... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1433 | cs/0205044 | 2002-05-18 | The K-Server Dual and Loose Competitiveness for Paging | This paper has two results. The first is based on the surprising observation that the well-known ``least-recently-used'' paging algorithm and the ``balance'' algorithm for weighted caching are linear-programming primal-dual algorithms. This observation leads to a strategy (called ``Greedy-Dual'') that generalizes them ... | [
"cs.DS",
"cs.NI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2913336 | cs/0205040 | 2002-05-18 | Approximating the Minimum Equivalent Digraph | The MEG (minimum equivalent graph) problem is, given a directed graph, to find a small subset of the edges that maintains all reachability relations between nodes. The problem is NP-hard. This paper gives an approximation algorithm with performance guarantee of pi^2/6 ~ 1.64. The algorithm and its analysis are based on... | [
"cs.DS",
"cs.DM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17434652 | hep-th/0205190 | 2002-05-19 | Superpotentials for Vector Bundle Moduli | We present a method for explicitly computing the non-perturbative superpotentials associated with the vector bundle moduli in heterotic superstrings and M-theory. This method is applicable to any stable, holomorphic vector bundle over an elliptically fibered Calabi-Yau threefold. For specificity, the vector bundle modu... | [
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119472258 | gr-qc/0205086 | 2002-05-19 | Exploiting gauge and constraint freedom in hyperbolic formulations of Einstein's equations | We present new many-parameter families of strongly and symmetric hyperbolic formulations of Einstein's equations that include quite general algebraic and live gauge conditions for the lapse. The first system that we present has 30 variables and incorporates an algebraic relationship between the lapse and the determinan... | [
"gr-qc"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "o sarbach_1",
"name": "O [\"livier\"] Sarbach",
"publication_history": null,
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},
{
"author_id": "m tiglio_1",
"name": "Manuel Tiglio",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
1272623 | cs/0205046 | 2002-05-19 | On the Number of Iterations for Dantzig-Wolfe Optimization and Packing-Covering Approximation Algorithms | We give a lower bound on the iteration complexity of a natural class of Lagrangean-relaxation algorithms for approximately solving packing/covering linear programs. We show that, given an input with $m$ random 0/1-constraints on $n$ variables, with high probability, any such algorithm requires $\Omega(\rho \log(m)/\eps... | [
"cs.DS",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
118130703 | math/0205209 | 2002-05-19 | Some algorithms arising in the proof of the Kepler conjecture | By any account, the 1998 proof of the Kepler conjecture is complex. The thesis underlying this article is that the proof is complex because it is highly under-automated. Throughout that proof, manual procedures are used where automated ones would have been better suited. This article gives a series of nonlinear optimiz... | [
"math.MG",
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1574486 | cond-mat/0205405 | 2002-05-20 | Assortative mixing in networks | A network is said to show assortative mixing if the nodes in the network that have many connections tend to be connected to other nodes with many connections. We define a measure of assortative mixing for networks and use it to show that social networks are often assortatively mixed, but that technological and biologic... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8660785 | cond-mat/0205418 | 2002-05-20 | Carbon nanotube composites for thermal management | Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt% unpurified SWNT material show a 70% increase in thermal conductivity at 40K, rising to 125% at room temperature; the enhancement due to 1 wt% loading of vapor grown carbon fibers is ... | [
"cond-mat.mtrl-sci",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m biercuk_1",
"name": "Michael [\"J.\"] Biercuk",
"publication_history": null,
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},
{
"author_id": "m llaguno_0",
"name": "Marc [\"C.\"] Llaguno",
"publication_history": null,
"h_index": null,
"n... | null |
1925819 | quant-ph/0205128 | 2002-05-20 | Authentication of Quantum Messages | Authentication is a well-studied area of classical cryptography: a sender S and a receiver R sharing a classical private key want to exchange a classical message with the guarantee that the message has not been modified by any third party with control of the communication line. In this paper we define and investigate t... | [
"quant-ph",
"cs.CR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
34698872 | cond-mat/0205415 | 2002-05-20 | Comment on: Nonmonotonic $d_{x^{2}-y^{2}}$ Superconducting Order Parameter in Nd$_{2-x}$Ce$_x$CuO$_4$ | In a recent letter Blumberg and collaborators claim that a non-monotonic $d_{x^2-y^2}$ form for the superconducting order parameter is required to explain their Raman scattering measurements in Nd$_{2-x}$Ce$_x$CuO$_4$ . In this comment we show with a simple model calculation that the basis for this conclusion is insuff... | [
"cond-mat.supr-con",
"cond-mat.str-el"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f venturini_2",
"name": "Francesca Venturini",
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},
{
"author_id": "r hackl_1",
"name": "Rudi Hackl",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
7602078 | hep-th/0205209 | 2002-05-21 | Bouncing Brane Cosmologies from Warped String Compactifications | We study the cosmology induced on a brane probing a warped throat region in a Calabi-Yau compactification of type IIB string theory. For the case of a BPS D3-brane probing the Klebanov-Strassler warped deformed conifold, the cosmology described by a suitable brane observer is a bouncing, spatially flat Friedmann-Robert... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5133576 | cs/0205057 | 2002-05-21 | Unsupervised Discovery of Morphemes | We present two methods for unsupervised segmentation of words into morpheme-like units. The model utilized is especially suited for languages with a rich morphology, such as Finnish. The first method is based on the Minimum Description Length (MDL) principle and works online. In the second method, Maximum Likelihood (M... | [
"cs.CL"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m creutz_1",
"name": "Mathias Creutz",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "k lagus_0",
"name": "K. Lagus",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num... | null |
15129648 | astro-ph/0205356 | 2002-05-21 | Toward An Empirical Theory of Pulsar Emission. VII. On the Spectral Behavior of Conal Beam Radii and Emission Heights | In this paper we return to the old problem of conal component-pair widths and profile dimensions. Observationally, we consider a set of 10 pulsars with prominent conal component pairs, for which well measured profiles exist over the largest frequency range now possible. Apart from some tendency to narrow at high freque... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3266406 | quant-ph/0205133 | 2002-05-21 | Adaptive Quantum Computation, Constant Depth Quantum Circuits and Arthur-Merlin Games | We present evidence that there exist quantum computations that can be carried out in constant depth, using 2-qubit gates, that cannot be simulated classically with high accuracy. We prove that if one can simulate these circuits classically efficiently then the complexity class BQP is contained in AM. | [
"quant-ph",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17592336 | astro-ph/0205378 | 2002-05-22 | First results from the Very Small Array -- I. Observational methods | The Very Small Array (VSA) is a synthesis telescope designed to image faint structures in the cosmic microwave background on degree and sub-degree angular scales. The VSA has key differences from other CMB interferometers with the result that different systematic errors are expected. We have tested the operation of the... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
45329133 | hep-ex/0205072 | 2002-05-22 | Azimuthal anisotropy of K0s and Lambda prduction at mid-rapidity from Au+Au collisions at root s = 130 GeV | We report STAR results on the azimuthal anisotropy parameter v2 for strange particles K0S, L and Lbar at midrapidity in Au+Au collisions at sNN = 130 GeV at RHIC. The value of v2 as a function of transverse momentum of the produced particles pt and collision centrality is presented for both particles up to pt 3.0 GeV/c... | [
"hep-ex",
"nucl-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c adler_1",
"name": "Clemens Adler",
"publication_history": null,
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},
{
"author_id": "z ahammed_1",
"name": "Zubayer Ahammed",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119088948 | astro-ph/0205380 | 2002-05-22 | First results from the Very Small Array -- III. The CMB power spectrum | We present the power spectrum of the fluctuations in the cosmic microwave background detected by the Very Small Array (VSA) in its first season of observations in its compact configuration. We find clear detections of first and second acoustic peaks at l~200 and l~550, plus detection of power on scales up to l=800. The... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119428333 | cond-mat/0205457 | 2002-05-22 | Quantum Spin Dynamics in Molecular Magnets | The detailed theoretical understanding of quantum spin dynamics in various molecular magnets is an important step on the roadway to technological applications of these systems. Quantum effects in both ferromagnetic and antiferromagnetic molecular clusters are, by now, theoretically well understood. Ferromagnetic molecu... | [
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15605923 | astro-ph/0205381 | 2002-05-22 | First results from the Very Small Array -- II. Observations of the CMB | We have observed the cosmic microwave background temperature fluctuations in eight fields covering three separated areas of sky with the Very Small Array at 34 GHz. A total area of 101 square degrees has been imaged, with sensitivity on angular scales 3.6 - 0.4 degrees (equivalent to angular multipoles l=150-900). We d... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119040436 | astro-ph/0205412 | 2002-05-23 | Three-Dimensional Mapping of the Dark Matter | We study the prospects for three-dimensional mapping of the dark matter to high redshift through the shearing of faint galaxies images at multiple distances by gravitational lensing. Such maps could provide invaluable information on the nature of the dark energy and dark matter. While in principle well-posed, mapping b... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5232574 | math/0205237 | 2002-05-23 | The Random-Cluster Model | The class of random-cluster models is a unification of a variety of stochastic processes of significance for probability and statistical physics, including percolation, Ising, and Potts models; in addition, their study has impact on the theory of certain random combinatorial structures, and of electrical networks. Much... | [
"math.PR",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55909127 | quant-ph/0205144 | 2002-05-23 | Femtosecond Time-Bin Entangled Qubits for Quantum Communication | We create pairs of non-degenerate time-bin entangled photons at telecom wavelengths with ultra-short pump pulses. Entanglement is shown by performing Bell kind tests of the Franson type with visibilities of up to 91%. As time-bin entanglement can easily be protected from decoherence as encountered in optical fibers, th... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5998639 | astro-ph/0205385 | 2002-05-23 | A Fast Gridded Method for the Estimation of the Power Spectrum of the CMB from Interferometer Data with Application to the Cosmic Background Imager | We describe an algorithm for the extraction of the angular power spectrum of an intensity field, such as the cosmic microwave background (CMB), from interferometer data. This new method, based on the gridding of interferometer visibilities in the aperture plane followed by a maximum likelihood solution for bandpowers, ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118847582 | astro-ph/0205428 | 2002-05-24 | A late-time transition in the equation of state versus Lambda-CDM | We study a model of the dark energy which exhibits a rapid change in its equation of state w(z), such as occurs in vacuum metamorphosis. We compare the model predictions with CMB, large scale structure and supernova data and show that a late-time transition is marginally preferred over standard Lambda-CDM. | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b bassett_1",
"name": "Bruce [\"A.\"] Bassett",
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},
{
"author_id": "m kunz_3",
"name": "Martin Kunz",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
30185927 | hep-lat/0205025 | 2002-05-24 | Color confinement and dual superconductivity in full QCD | We report on evidence that confinement is related to dual superconductivity of the vacuum in full QCD, as in quenched QCD. The vacuum is a dual superconductor in the confining phase, whilst the U(1) magnetic symmetry is realized a la Wigner in the deconfined phase. | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j carmona_2",
"name": "José [\"Manuel\"] Carmona",
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},
{
"author_id": "m d'elia_1",
"name": "Massimo D'Elia",
"publication_history": null,
"h_index": null,
"num_pape... | null |
53654666 | astro-ph/0205436 | 2002-05-24 | Cosmological parameters from CMB and other data: a Monte-Carlo approach | We present a fast Markov Chain Monte-Carlo exploration of cosmological parameter space. We perform a joint analysis of results from recent CMB experiments and provide parameter constraints, including sigma_8, from the CMB independent of other data. We next combine data from the CMB, HST Key Project, 2dF galaxy redshift... | [
"astro-ph",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15146921 | hep-ph/0205283 | 2002-05-24 | Matrix Elements and Parton Showers in Hadronic Interactions | A method is suggested to combine tree level QCD matrix for the production of multi jet final states and the parton shower in hadronic interactions. The method follows closely an algorithm developed recently for the case of $e^+e^-$ annihilations. | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17462427 | cond-mat/0205527 | 2002-05-25 | String Method for the Study of Rare Events | We present a new and efficient method for computing the transition pathways, free energy barriers, and transition rates in complex systems with relatively smooth energy landscapes. The method proceeds by evolving strings, i.e. smooth curves with intrinsic parametrization whose dynamics takes them to the most probable t... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
7521453 | cs/0205065 | 2002-05-25 | Bootstrapping Lexical Choice via Multiple-Sequence Alignment | An important component of any generation system is the mapping dictionary, a lexicon of elementary semantic expressions and corresponding natural language realizations. Typically, labor-intensive knowledge-based methods are used to construct the dictionary. We instead propose to acquire it automatically via a novel mul... | [
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r barzilay_1",
"name": "Regina Barzilay",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "l lee_11",
"name": "Lillian Lee",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
12547591 | cs/0205066 | 2002-05-26 | Effectiveness of Preference Elicitation in Combinatorial Auctions | Combinatorial auctions where agents can bid on bundles of items are desirable because they allow the agents to express complementarity and substitutability between the items. However, expressing one's preferences can require bidding on all bundles. Selective incremental preference elicitation by the auctioneer was rece... | [
"cs.GT",
"cs.MA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b hudson_2",
"name": "Benoît Hudson",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "t sandholm_1",
"name": "Tuomas Sandholm",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
119483641 | quant-ph/0205164 | 2002-05-26 | Being and Change: Foundations of a Realistic Operational Formalism | The aim of this article is to represent the general description of an entity by means of its states, contexts and properties. The entity that we want to describe does not necessarily have to be a physical entity, but can also be an entity of a more abstract nature, for example a concept, or a cultural artifact, or the ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7105713 | cs/0205070 | 2002-05-27 | Thumbs up? Sentiment Classification using Machine Learning Techniques | We consider the problem of classifying documents not by topic, but by overall sentiment, e.g., determining whether a review is positive or negative. Using movie reviews as data, we find that standard machine learning techniques definitively outperform human-produced baselines. However, the three machine learning method... | [
"cs.CL",
"cs.LG"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119412596 | astro-ph/0205473 | 2002-05-27 | The soft X-ray emission in a large sample of galaxy clusters with ROSAT PSPC | The study of soft X-ray emission of 38 X-ray selected galaxy clusters observed by ROSAT PSPC indicates that the soft excess phenomenon may be a common occurrence in galaxy clusters. Excess soft X-ray radiation, above the contribution from the hot intra-cluster medium, is evident in a large fraction of sources, and is c... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7064913 | cs/0205073 | 2002-05-28 | Vote Elicitation: Complexity and Strategy-Proofness | Preference elicitation is a central problem in AI, and has received significant attention in single-agent settings. It is also a key problem in multiagent systems, but has received little attention here so far. In this setting, the agents may have different preferences that often must be aggregated using voting. This l... | [
"cs.GT",
"cs.CC",
"cs.MA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v conitzer_1",
"name": "Vincent Conitzer",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "t sandholm_1",
"name": "Tuomas Sandholm",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
14732363 | math/0205303 | 2002-05-28 | On Asymmetric Coverings and Covering Numbers | An asymmetric covering D(n,R) is a collection of special subsets S of an n-set such that every subset T of the n-set is contained in at least one special S with |S| - |T| <= R. In this paper we compute the smallest size of any D(n,1) for n <= 8. We also investigate ``continuous'' and ``banded'' versions of the problem.... | [
"math.CO",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
263785763 | cs/0205074 | 2002-05-28 | Complexity Results about Nash Equilibria | Noncooperative game theory provides a normative framework for analyzing strategic interactions. However, for the toolbox to be operational, the solutions it defines will have to be computed. In this paper, we provide a single reduction that 1) demonstrates NP-hardness of determining whether Nash equilibria with certain... | [
"cs.GT",
"cs.CC",
"cs.MA"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v conitzer_1",
"name": "Vincent Conitzer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "t sandholm_1",
"name": "Tuomas Sandholm",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
119416370 | gr-qc/0205124 | 2002-05-29 | Model of Thermal Wavefront Distortion in Interferometric Gravitational-Wave Detectors I: Thermal Focusing | We develop a steady-state analytical and numerical model of the optical response of power-recycled Fabry-Perot Michelson laser gravitational-wave detectors to thermal focusing in optical substrates. We assume that the thermal distortions are small enough that we can represent the unperturbed intracavity field anywhere ... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r beausoleil_2",
"name": "Raymond [\"G.\"] Beausoleil",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "e gustafson_1",
"name": "Eric [\"K.\"] Gustafson",
"publication_history": null,
"h_index": nu... | null |
15145183 | astro-ph/0205506 | 2002-05-29 | Shape Alignments of Satellite Galaxies | We test a sample of satellites of isolated primary galaxies, extracted from the 2dF Galaxy Redshift Survey (2dFGRS), for any tendency to be aligned along (or against) the primary-to-satellite radius vector. If tidal effects induce such an alignment, it would contaminate recent measurements of galaxy halo masses which u... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2241813 | cs/0205076 | 2002-05-29 | Complexity of Manipulating Elections with Few Candidates | In multiagent settings where the agents have different preferences, preference aggregation is a central issue. Voting is a general method for preference aggregation, but seminal results have shown that all general voting protocols are manipulable. One could try to avoid manipulation by using voting protocols where dete... | [
"cs.GT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "v conitzer_1",
"name": "Vincent Conitzer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "t sandholm_1",
"name": "Tuomas Sandholm",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
40549563 | astro-ph/0205502 | 2002-05-29 | The Southern Dwarf Hunt: Local Group Dwarf Candidates in the Southern Sky | We present observations of 82 Local Group dwarf galaxy candidates, of which 62 were chosen visually from ESO-SRC survey plates of the southern sky (32 of which were not previously catalogued) and the rest suggested by various sources in the literature. Two are the Local Group galaxies Antlia and Cetus; nine are more di... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9924001 | hep-th/0205297 | 2002-05-29 | Worldsheet Derivation of a Large N Duality | We give a worldsheet proof of the equivalence between the U(N) Chern-Simons gauge theory on S^3 and the topological closed string theory on the resolved conifold geometry. When the `t Hooft coupling of the gauge theory is small, the dual closed string worldsheet develops a new branch. We show that the fluctuations of t... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
24841227 | nucl-ex/0205021 | 2002-05-29 | Pseudorapidity and centrality dependence of the collective flow of charged particles in Au+Au collisions at sqrt{s_NN} = 130 GeV | This paper describes the measurement of collective flow for charged particles in Au+Au collisions at sqrt{s_NN}} = 130 GeV using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC). An azimuthal anisotropy is observed in the charged particle hit distribution in the PHOBOS multiplicity detector. This aniso... | [
"nucl-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
111806322 | hep-ex/0205100 | 2002-05-30 | Measurement of \chi_{c2} Production in Two-Photon Collisions | The production of the \chi_{c2} charmonium state in two-photon collisions has been measured with the Belle detector at the KEKB e^+e^- collider. A clear signal for \chi_{c2} --> \gamma J/\psi, J/\psi --> l^+l^- is observed in a 32.6fb^{-1} data sample accumulated at center-of-mass energies near 10.6GeV, and the product... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119381884 | quant-ph/0205191 | 2002-05-31 | Security of quantum cryptography using balanced homodyne detection | In this paper we investigate the security of a quantum cryptographic scheme which utilizes balanced homodyne detection and weak coherent pulse (WCP). The performance of the system is mainly characterized by the intensity of the WCP and postselected threshold. Two of the simplest intercept/resend eavesdropping attacks a... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17569897 | astro-ph/0206001 | 2002-05-31 | System description and first light-curves of HAT, an autonomous observatory for variability search | Having been operational at Kitt Peak for more than a year, the prototype of the Hungarian Automated Telescope (HAT-1) has been used for all-sky variability search of the northern hemisphere. The small autonomous observatory is recording brightness of stars in the range of I~6--13m with a telephoto lens and its 9x9 degr... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
97637616 | cond-mat/0205663 | 2002-05-31 | Adsorption hysteresis and capillary condensation in disordered porous solids: a density functional study | We present a theoretical study of capillary condensation of fluids adsorbed in mesoporous disordered media. Combining mean-field density functional theory with a coarse-grained description in terms of a lattice-gas model allows us to investigate both the out-of-equilibrium (hysteresis) and the equilibrium behavior. We ... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
17562492 | astro-ph/0205542 | 2002-05-31 | The Explosive Yields Produced by the First Generation of Core Collapse Supernovae and the Chemical Composition of Extremely Metal Poor Stars | We present a detailed comparison between an extended set of elemental abundances observed in some of the most metal poor stars presently known and the ejecta produced by a generation of primordial core collapse supernovae. We used five stars which form our initial database and define a "template" ultra metal poor star ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17540124 | quant-ph/0206003 | 2002-06-01 | How Powerful is Adiabatic Quantum Computation? | We analyze the computational power and limitations of the recently proposed 'quantum adiabatic evolution algorithm'. | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11621758 | nucl-ex/0206001 | 2002-06-03 | Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV | Elliptic flow holds much promise for studying the early-time thermalization attained in ultrarelativistic nuclear collisions. Flow measurements also provide a means of distinguishing between hydrodynamic models and calculations which approach the low density (dilute gas) limit. Among the effects that can complicate the... | [
"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 |
17491067 | math/0206011 | 2002-06-03 | Weighted Grassmannians | Many classes of projective algebraic varieties can be studied in terms of graded rings. Gorenstein graded rings in small codimension have been studied recently from an algebraic point of view, but the geometric meaning of the resulting structures is still relatively poorly understood. We discuss here the weighted proje... | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2845603 | hep-ph/0206021 | 2002-06-03 | The Littlest Higgs | We present an economical theory of natural electroweak symmetry breaking, generalizing an approach based on deconstruction. This theory is the smallest extension of the Standard Model to date that stabilizes the electroweak scale with a naturally light Higgs and weakly coupled new physics at TeV energies. The Higgs is ... | [
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119699508 | math/0206017 | 2002-06-03 | What is Stochastic Independence? | The notion of a tensor product with projections or with inclusions is defined. It is shown that the definition of stochastic independence relies on such a structure and that independence can be defined in an arbitrary category with a tensor product with inclusions or projections. In this context, the classifications of... | [
"math.QA",
"math.CT",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1435266 | cs/0206004 | 2002-06-03 | Mining All Non-Derivable Frequent Itemsets | Recent studies on frequent itemset mining algorithms resulted in significant performance improvements. However, if the minimal support threshold is set too low, or the data is highly correlated, the number of frequent itemsets itself can be prohibitively large. To overcome this problem, recently several proposals have ... | [
"cs.DB",
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t calders_1",
"name": "Toon Calders",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "b goethals_1",
"name": "Bart Goethals",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15385909 | astro-ph/0206056 | 2002-06-04 | A Test of Photometric Redshifts for X-ray Selected Sources | We test the effectiveness of photometric redshifts based upon galaxy spectral template fitting for X-ray luminous objects, using a sample of 65 sources detected by Chandra in the field of the Caltech Faint Galaxy Redshift Survey (CFGRS). We find that sources with quasar-dominated spectra (for which galaxy spectral temp... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
24703 | hep-th/0206042 | 2002-06-05 | Effective Lagrangians and Universality Classes of Nonlinear Bigravity | We discuss the fully non-linear formulation of multigravity. The concept of universality classes of effective Lagrangians describing bigravity, which is the simplest form of multigravity, is introduced. We show that non-linear multigravity theories can naturally arise in several different physical contexts: brane confi... | [
"hep-th",
"astro-ph",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19189775 | physics/0206013 | 2002-06-05 | Long time correlations in Lagrangian dynamics: a key to intermittency in turbulence | New aspects of turbulence are uncovered if one considers flow motion from the perspective of a fluid particle (known as the Lagrangian approach) rather than in terms of a velocity field (the Eulerian viewpoint). Using a new experimental technique, based on the scattering of ultrasounds, we have obtained a direct measur... | [
"physics.flu-dyn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117796520 | cond-mat/0206052 | 2002-06-05 | Invalidity of the Landauer inequality for information erasure in the quantum regime | A known aspect of the Clausius inequality is that an equilibrium system subjected to a squeezing $\d S<0$ of its entropy must release at least an amount $|\dbarrm Q|=T|\d S|$ of heat. This serves as a basis for the Landauer principle, which puts a lower bound $T\ln 2$ for the heat generated by erasure of one bit of inf... | [
"cond-mat.stat-mech",
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a allahverdyan_1",
"name": "Armen [\"E.\"] Allahverdyan",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "t nieuwenhuizen_1",
"name": "Theo [\"M.\"] Nieuwenhuizen",
"publication_history": null,
"h_... | null |
14117447 | astro-ph/0206081 | 2002-06-05 | High resolution spatial and timing observations of millisecond pulsar PSR J0218+4232 with Chandra | We report on high-resolution spatial and timing results for binary millisecond pulsar PSR J0218+4232 obtained with the Chandra HRC-I and HRC-S in imaging mode. We found no indications for extended emission at 1 arcsec scales. With the HRC-S observation we obtained a 0.08-10 keV pulse profile with high statistics which ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119482662 | cond-mat/0206069 | 2002-06-06 | CeCoIn5 - a quantum critical superfluid | We have made the first complete measurements of the London penetration depth $\lambda(T)$ of CeCoIn5, a quantum-critical metal where superconductivity arises from a non-Fermi-liquid normal state. Using a novel tunnel diode oscillator designed to avoid spurious contributions to $\lambda(T)$, we have established the exis... | [
"cond-mat.supr-con",
"cond-mat.str-el"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s ozcan_0",
"name": "S. Ozcan",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d broun_1",
"name": "David Broun",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cit... | null |
119530063 | astro-ph/0206099 | 2002-06-06 | A box-fitting algorithm in the search for periodic transits | We study the statistical characteristics of a box-fitting algorithm to analyze stellar photometric time series in the search for periodic transits by extrasolar planets. The algorithm searches for signals characterized by a periodic alternation between two discrete levels, with much less time spent at the lower level. ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118366034 | hep-th/0206045 | 2002-06-06 | Penrose Limits, Deformed pp-Waves and the String Duals of N=1 Large n Gauge Theory | A certain conformally invariant N=1 supersymmetric SU(n) gauge theory has a description as an infra-red fixed point obtained by deforming the N=4 supersymmetric Yang-Mills theory by giving a mass to one of its N=1 chiral multiplets. We study the Penrose limit of the supergravity dual of the large n limit of this N=1 ga... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6021306 | hep-th/0206054 | 2002-06-06 | Topological Disorder Operators in Three-Dimensional Conformal Field Theory | Many abelian gauge theories in three dimensions flow to interacting conformal field theories in the infrared. We define a new class of local operators in these conformal field theories which are not polynomial in the fundamental fields and create topological disorder. They can be regarded as higher-dimensional analogue... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16971837 | astro-ph/0206103 | 2002-06-07 | Weak lensing study of galaxy biasing | We combine weak lensing measurements from the Red-Sequence Cluster Survey and the VIRMOS-DESCART survey, and present the first direct measurements of the bias parameter b and the galaxy-mass cross-correlation coefficient r on scales ranging from 0.2 to 9.3 h_{50}^{-1} Mpc at a lens redshift z~0.35. We find strong evide... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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