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amongst the population of tev gamma - ray sources detected with the high energy stereoscopic system ( h. e. s. s. ) in the galactic plane, clearly identified supernova remnant ( snr ) shells constitute a small but precious source class. tev - selected snrs are prime candidates for sources of efficient cosmic - ray acce... | arxiv:1509.03872 |
the thermodynamical properties of dark energy are usually investigated with the equation of state $ \ omega = \ omega _ { 0 } + \ omega _ { 1 } z $. recent observations show that our universe is accelerating, and the apparent horizon and the event horizon vary with redshift $ z $. when definitions of the temperature an... | arxiv:0709.2745 |
we study both the static and dynamic properties of gapped, one - dimensional, heisenberg, anti - ferromagnetic, spin chains at finite temperature through an analysis of the o ( 3 ) non - linear sigma model. exploiting the integrability of this theory, we are able to compute an exact low temperature expansion of the fin... | arxiv:cond-mat/0105284 |
in this paper, by making use of the perturbative expansion around topological field theory we are trying to understand why the standard perturbation theory for general relativity, which starts with linearized gravity does not see gravitational collapse. we start with investigating classical equations of motion. for zer... | arxiv:gr-qc/0612093 |
geometric predicates are a basic ingredient to implement a vast range of algorithms in computational geometry. modern implementations employ floating point filtering techniques to combine efficiency and robustness, and state - of - the - art predicates are guaranteed to be always exact while being only slightly slower ... | arxiv:2105.09772 |
a representation for the kernel of the transmutation operator relating the perturbed bessel equation with the unperturbed one is obtained in the form of a functional series with coefficients calculated by a recurrent integration procedure. new properties of the transmutation kernel are established. a new representation... | arxiv:1712.01363 |
we set conservative, robust constraints on the annihilation and decay of dark matter into various standard model final states under various assumptions about the distribution of the dark matter in the milky way halo. we use the inclusive photon spectrum observed by the fermi gamma - ray space telescope through its main... | arxiv:1503.07169 |
connecting optimal transport and variational inference, we present a principled and systematic framework for sampling and generative modelling centred around divergences on path space. our work culminates in the development of the \ emph { controlled monte carlo diffusion } sampler ( cmcd ) for bayesian computation, a ... | arxiv:2307.01050 |
as machine learning gains prominence in various sectors of society for automated decision - making, concerns have risen regarding potential vulnerabilities in machine learning ( ml ) frameworks. nevertheless, testing these frameworks is a daunting task due to their intricate implementation. previous research on fuzzing... | arxiv:2307.05642 |
retrieval - augmented language models can better adapt to changes in world state and incorporate long - tail knowledge. however, most existing methods retrieve only short contiguous chunks from a retrieval corpus, limiting holistic understanding of the overall document context. we introduce the novel approach of recurs... | arxiv:2401.18059 |
to π = = = as is exactly equal to 2π it shares many of the properties of π including being both an irrational and transcendental number. = = history = = the proposal to use the greek letter as a circle constant representing 2π dates to michael hartl ' s 2010 publication, the tau manifesto, although the symbol had been ... | https://en.wikipedia.org/wiki/Tau_(mathematics) |
acanthamoebae are free - living protists and human pathogens, whose cellular functions and pathogenicity strongly depend on the transport of intracellular vesicles and granules through the cytosol. using high - speed live cell imaging in combination with single - particle tracking analysis, we show here that the motion... | arxiv:1507.00716 |
we report the magnetic and electronic properties of the bilayer ruthenate sr $ _ 3 $ ru $ _ 2 $ o $ _ 7 $ upon fe substitution for ru. we find that sr $ _ 3 $ ( ru $ _ { 1 - x } $ fe $ _ x $ ) $ _ 2 $ o $ _ 7 $ shows a spin - glass - like phase below 4 k for $ x $ = 0. 01 and commensurate e - type antiferromagnetically... | arxiv:1802.03633 |
the local reference frame ( lrf ) acts as a critical role in 3d local shape description and matching. however, most of existing lrfs are hand - crafted and suffer from limited repeatability and robustness. this paper presents the first attempt to learn an lrf via a siamese network that needs weak supervision only. in p... | arxiv:2001.07832 |
in this paper, we first show that the irreducible characters of a quotient table algebra modulo a normal closed subset can be viewed as the irreducible characters of the table algebra itself. furthermore, we define the character products for table algebras and give a condition in which the products of two characters ar... | arxiv:0810.5305 |
the rapid advancement of large language models ( llms ) has increased the complexity and cost of fine - tuning, leading to the adoption of api - based fine - tuning as a simpler and more efficient alternative. while this method is popular among resource - limited organizations, it introduces significant security risks,... | arxiv:2503.10668 |
build accurate dnn models requires training on large labeled, context specific datasets, especially those matching the target scenario. we believe advances in wireless localization, working in unison with cameras, can produce automated annotation of targets on images and videos captured in the wild. using pedestrian an... | arxiv:1809.10242 |
ginzburg, kapranov and vasserot conjectured the existence of equivariant elliptic cohomology theories. in this paper, to give a description of equivariant spectra of the theories, we study an intermediate theory, quasi - elliptic cohomology. we formulate a new category of orthogonal g - spectra and construct explicitly... | arxiv:1703.06562 |
the hubble space telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet ( uv ) range within the framework of the ullyses program. the x - shooting ullyses ( xshootu ) project enhances the legacy value of this uv dataset by providing high - quality optical and near - infr... | arxiv:2405.00085 |
this paper addresses the 3d point cloud reconstruction and 3d pose estimation of the human hand from a single rgb image. to that end, we present a novel pipeline for local and global point cloud reconstruction using a 3d hand template while learning a latent representation for pose estimation. to demonstrate our method... | arxiv:2112.06389 |
we discuss and propose a proper extension of the abelian projection based on the maximal abelian gauge to su ( n ) gauge theories. based, on that, we investigate the properties of thermal abelian monopoles in the deconfined phase of the su ( 3 ) pure gauge theory. such properties are very similar to those already found... | arxiv:1308.0302 |
we show that it is not possible to determine the final mass $ m _ { \ rm fin } $ of a red supergiant ( rsg ) at the pre - supernova ( sn ) stage from its luminosity $ l $ and effective temperature $ t _ { \ rm eff } $ alone. using a grid of stellar models, we demonstrate that for a given value of $ l $ and $ t _ { \ rm... | arxiv:2001.08711 |
and tone = = in its first section, titled " idea of the work " ( idea dell ' opera ), the 1730 and 1744 editions of the new science explicitly present themselves as a " science of reasoning " ( scienza di ragionare ). the work ( especially the section " of the elements " ) includes a dialectic between axioms ( authorit... | https://en.wikipedia.org/wiki/The_New_Science |
we consider pair production of new down - type isosinglet quarks originating from e _ { 6 }, which is the favorite gauge symmetry group in superstring inspired gut models. the study concentrates on the possibility of observing the pair production of the lightest of the new quarks, d, in the atlas detector at the forthc... | arxiv:hep-ex/0603005 |
using the monomer - - dimer representation of the lattice schwinger model, with $ n _ f = 1 $ wilson fermions in the strong - - coupling regime ( $ \ beta = 0 $ ), we evaluate its partition function, $ z $, exactly on finite lattices. by studying the zeroes of $ z ( k ) $ in the complex plane $ ( re ( k ), im ( k ) ) $... | arxiv:hep-lat/9411019 |
we compute the free energy of helium - 4 near the lambda transition based on an exact renormalization - group equation. an approximate solution permits the determination of universal and nonuniversal thermodynamic properties starting from the microphysics of the two - particle interactions. the method does not suffer f... | arxiv:cond-mat/0101254 |
it is known that the connected graphs that are $ p $ - good for all $ p $ are the trees. in this paper, we ask which ordered trees are order - $ p $ - good for all $ p $. | arxiv:1412.3071 |
conventional photoemission orbital tomography based on fourier iterative method enables us to extract a projected two - dimensional ( 2d ) molecular orbital from a 2d photoelectron momentum map ( pmm ) of planar $ \ pi $ - conjugated molecules in a single - orientation system, while not in a multi - orientation system.... | arxiv:2309.11242 |
bayesian optimization provides an effective method to optimize expensive - to - evaluate black box functions. it has been widely applied to problems in many fields, including notably in computer science, e. g. in machine learning to optimize hyperparameters of neural networks, and in engineering, e. g. in fluid dynamic... | arxiv:2207.09154 |
graph neural networks ( gnns ) have been widely investigated in the field of semi - supervised graph machine learning. most methods fail to exploit adequate graph information when labeled data is limited, leading to the problem of oversmoothing. to overcome this issue, we propose the graph alignment neural network ( ga... | arxiv:2303.07778 |
in this paper, we propose and study the effectiveness of customer engagement plans that clearly specify the amount of intervention in customer ' s load settings by the grid operator for peak load reduction. we suggest two different types of plans, including constant deviation plans ( cdps ) and proportional deviation p... | arxiv:1502.03908 |
llama - breeze2 ( hereinafter referred to as breeze2 ) is a suite of advanced multi - modal language models, available in 3b and 8b parameter configurations, specifically designed to enhance traditional chinese language representation. building upon the llama 3. 2 model family, we continue the pre - training of breeze2... | arxiv:2501.13921 |
( abridged ) by comparing the frequency of typical events with that of unusual events, one can test whether the cosmological density distribution function is consistent with the normally made assumption of gaussianity. to this end, we compare the consistency of the tail - inferred ( from clusters ) and measured values ... | arxiv:astro-ph/9708250 |
we study nonuniform lattices in the automorphism group g of a locally finite simplicial tree x. in particular, we are interested in classifying lattices up to commensurability in g. we introduce two new commensurability invariants : quotient growth, which measures the growth of the noncompact quotient of the lattice ; ... | arxiv:math/0409094 |
proteolysis - targeting chimeras ( protacs ) represent a novel class of small molecules which are designed to act as a bridge between an e3 ligase and a disease - relevant protein, thereby promoting its subsequent degradation. protacs are composed of two protein binding " active " domains, linked by a " linker " domain... | arxiv:2306.08166 |
the post - minkowskian expansion of einstein ' s general theory of relativity has received much attention in recent years due to the possibility of harnessing the computational power of modern amplitude calculations in such a classical context. in this brief review, we focus on the post - minkowskian expansion as appli... | arxiv:2203.13024 |
the vector electric - field helmholtz equation, containing cross - polarization terms, is factored to produce both pseudo - differential and exponential operator forms of a three - dimensional, one - way, vector, wave equation for propagation through inhomogeneous media. from this operator factorization we develop a hi... | arxiv:2410.17446 |
x { \ mbox {. } } \! } no matter what set x is the starting point, the empty set { } will belong to s1x. the empty set is the von neumann ordinal [ 0 ]. then { [ 0 ] }, the set whose only element is the empty set, will belong to s2x ; this is the von neumann ordinal [ 1 ]. similarly, { [ 1 ] } will belong to s3x, and t... | https://en.wikipedia.org/wiki/Universe_(mathematics) |
we show that there is a manifestly covariant version of the pauli hamiltonian with equations of motion quadratic on spin and field strength. relativistic covariance inevitably leads to noncommutative positions : classical brackets of the position variables are proportional to the spin. it is the spin - induced noncommu... | arxiv:1910.11140 |
in most sociophysical simulations on public opinion, only two opinions are allowed : pro and contra. however, in all political elections many people do not vote. here we analyse two models of dynamics of public opinion, taking into account indifferent voters : { \ it i ) } the sznajd model with symmetry pro - contra, {... | arxiv:0908.3387 |
this paper aims at investigating necessary ( and sufficient ) conditions for quasilinear systems of first order pdes to be hamiltonian, with non - homogeneous operators of order 1 + 0, also with degenerate leading coefficient. as a byproduct, tsarev ' s compatibility conditions are extended to degenerate operators. som... | arxiv:2301.10713 |
environment induced decoherence entails the absence of quantum interference phenomena from the macroworld. the loss of coherence between superposed wave packets depends on their separation. the precise temporal course depends on the relative size of the time scales for decoherence and other processes taking place in th... | arxiv:quant-ph/0205108 |
multi - organ diseases present significant challenges due to their simultaneous impact on multiple organ systems, necessitating complex and adaptive treatment strategies. despite recent advancements in ai - powered healthcare decision support systems, existing solutions are limited to individual organ systems. they oft... | arxiv:2409.04224 |
we consider a massless, minimally coupled scalar with a quartic self - interaction which is released in bunch - davies vacuum in locally de sitter background of an inflating universe. it was shown, in this system, that quantum effects can induce a temporary phase of super - acceleration causing a violation of the weak ... | arxiv:gr-qc/0612026 |
pion and kaon observables are calculated using a dyson - schwinger bethe - salpeter formalism. it is shown that an infrared finite gluon propagator can lead to quark confinement via generation of complex mass poles in quark propagators. observables, including electromagnetic form factors, are calculated entirely in euc... | arxiv:hep-ph/9702251 |
the luminosity variation of a stellar source due to the gravitational microlensing effect can be considered also if the light rays are defocused ( instead of focused ) toward the observer. in this case, we should detect a gap instead of a peak in the light curve of the source. actually, we describe how the phenomenon d... | arxiv:astro-ph/9610074 |
we determine the equation of state of stoichiometric feo employing the diffusion monte carlo method. the fermionic nodes are fixed to those of a wave function having the form of a single slater determinant. the calculated ambient pressure properties ( lattice constant, bulk modulus and cohesive energy ) agree very well... | arxiv:0712.3610 |
in the recent article ` conflict between anthropic reasoning and observation ' ( gr - qc / 0303070 ) ken d. olum, using some inflation - based ideas and the anthropic premise that we should be typical among all intelligent observers in the universe, arrives at the puzzling conclusion that ` we should find ourselves in ... | arxiv:physics/0308078 |
we study a class of physically intriguing pt - symmetric generalized scarf - ii ( gs - ii ) potentials, which can support exact solitons in one - and multi - dimensional nonlinear schr \ " odinger equation. in the 1d and multi - d settings, we find that a properly adjusted localization parameter may support fully real ... | arxiv:2111.09482 |
we reexamine the production of j / psi and other charmonium states for a variety of target - projectile choices at the sps, in particular for the interesting comparison between s + u at 200 gev / c and pb + pb at 158 gev / c as observed in the experiments na38 and na50 respectively. the result is a description of the n... | arxiv:nucl-th/9810064 |
harada proposed a modified theory of gravity called cotton gravity, and argued that it successfully explains the rotation curves of $ 84 $ galaxies without the need of dark matter. in this work we use galaxy - galaxy lensing technique to test whether the modification effect of cotton gravity can indeed be a viable subs... | arxiv:2405.07215 |
we present a portable multiscopic camera system with a dedicated model for novel view and time synthesis in dynamic scenes. our goal is to render high - quality images for a dynamic scene from any viewpoint at any time using our portable multiscopic camera. to achieve such novel view and time synthesis, we develop a ph... | arxiv:2208.14433 |
the widely used double - bridging hybrid ( dbh ) method for equilibrating simulated entangled polymer melts [ r. auhl et al., j. chem. phys. v. 119, p. 12718, 2003 ] loses its effectiveness as chain stiffness increases into the semiflexible regime because the energy barriers associated with double - bridging monte carl... | arxiv:2109.11001 |
we compare static arbitrage price bounds on basket calls, i. e. bounds that only involve buy - and - hold trading strategies, with the price range obtained within a multi - variate generalization of the black - scholes model. while there is no gap between these two sets of prices in the univariate case, we observe here... | arxiv:cs/0407029 |
understanding how opinions spread through a community or how consensus emerges in noisy environments can have a significant impact on our comprehension of social relations among individuals. in this work a model for the dynamics of opinion formation is introduced. the model is based on a nonlinear interaction between o... | arxiv:physics/0701169 |
as a significant step for human face modeling, editing, and generation, face landmarking aims at extracting facial keypoints from images. a generalizable face landmarker is required in practice because real - world facial images, e. g., the avatars in animations and games, are often stylized in various ways. however, a... | arxiv:2404.12322 |
in this work, we explored the effect of the fuzzy dark matter ( fdm ) ( or wave dark matter ) halo on a supermassive black hole ( smbh ). such a dark matter introduces a soliton core density profile, and we treat it ideally as a spherical distribution that surrounds the smbh located at its center. in this direction, we... | arxiv:2210.00523 |
define a building blocks set to be a collection of n cubes ( each with six sides ) where each side is assigned one letter and one color from a palette of m colors. we propose a novel problem of assigning letters and colors to each face so as to maximize the number of words one can spell from a chosen dataset that are e... | arxiv:2501.17188 |
in this paper we consider symmetric powers representation and exterior powers representation of finite groups, which generated by the representation which has finite dimension over the complex field. we calculate the multiplicity of irreducible component of two representations of some representation by using a characte... | arxiv:1405.2042 |
entanglement harvesting from the quantum field is a well - known fact that, in recent times, is being rigorously investigated further in flat and different curved backgrounds. the usually understood formulation studies the possibility of two uncorrelated unruh - dewitt detectors getting entangled over time due to the e... | arxiv:2205.08505 |
we give a new algorithm for learning a two - layer neural network under a general class of input distributions. assuming there is a ground - truth two - layer network $ $ y = a \ sigma ( wx ) + \ xi, $ $ where $ a, w $ are weight matrices, $ \ xi $ represents noise, and the number of neurons in the hidden layer is no l... | arxiv:1810.06793 |
i describe the parton picture at strong coupling emerging from the gauge / gravity duality, with emphasis on the universality of the phenomenon of parton saturation. i discuss several consequences of this picture for the phenomenology of a strongly coupled quark - gluon plasma, which are potentially relevant for heavy ... | arxiv:1009.1278 |
let $ v $ be an $ n $ - dimensional vector space over a finite field $ \ mathbb { f } _ q $. in this paper we describe the structure of maximal non - trivial $ t $ - intersecting families of $ k $ - dimensional subspaces of $ v $ with large size. we also determine the non - trivial $ t $ - intersecting families with ma... | arxiv:2007.11767 |
deep learning - based methods have recently demonstrated promising results in deformable image registration for a wide range of medical image analysis tasks. however, existing deep learning - based methods are usually limited to small deformation settings, and desirable properties of the transformation including biject... | arxiv:2006.16148 |
the premise of semi - supervised learning ( ssl ) is that combining labeled and unlabeled data yields significantly more accurate models. despite empirical successes, the theoretical understanding of ssl is still far from complete. in this work, we study ssl for high dimensional sparse gaussian classification. to const... | arxiv:2409.03335 |
the complexity of a finite connected graph is its number of spanning trees ; for a non - connected graph it is the product of complexities of its connected components. if $ g $ is an infinite graph with cofinite free $ { \ mathbb z } ^ d $ - symmetry, then the logarithmic mahler measure $ m ( \ delta ) $ of its laplaci... | arxiv:1602.02797 |
quasars ( qsos ) hosting supermassive black holes are believed to reside in massive halos harboring galaxy overdensities. however, many observations revealed average or low galaxy densities around $ z \ gtrsim6 $ qsos. this could be partly because they measured galaxy densities in only tens of arcmin $ ^ 2 $ around qso... | arxiv:1802.08912 |
the laser interferometer space antenna ( lisa ) is scheduled to launch in the mid 2030s, and is expected to observe gravitational - wave candidates from massive black - hole binary mergers, extreme mass - ratio inspirals, and more. accurately inferring the source properties from the observed gravitational - wave signal... | arxiv:2312.13039 |
we observe the dynamics of waves propagating on the surface of a ferrofluid under the influence of a spatially and temporarily modulated field. in particular, we excite plane waves by a travelling lamellar modulation of the magnetization. by this external driving both the wavelength and the propagation velocity of the ... | arxiv:0803.3038 |
we present an algorithm for fast generation of quasi - uniform and variable - spacing nodes on domains whose boundaries are represented as computer - aided design ( cad ) models, more specifically non - uniform rational b - splines ( nurbs ). this new algorithm enables the solution of partial differential equations ( p... | arxiv:2303.02638 |
transformer - based image denoising methods have achieved encouraging results in the past year. however, it must uses linear operations to model long - range dependencies, which greatly increases model inference time and consumes gpu storage space. compared with convolutional neural network - based methods, current tra... | arxiv:2304.06274 |
measurements of the $ \ pi ^ { \ pm } $, $ k ^ { \ pm } $, and proton double differential yields emitted from the surface of the 90 - cm - long carbon target ( t2k replica ) were performed for the incoming 31 gev / c protons with the na61 / shine spectrometer at the cern sps using data collected during 2010 run. the do... | arxiv:1808.04927 |
presence of bound pairs ( excitons ) in a low - temperature electron - hole plasma is accounted for by including correlation between fermions at the ladder level. using a simplified one - dimensional model with on - site coulomb interaction, we calculate the one - particle self - energies, chemical potential, and optic... | arxiv:cond-mat/0009390 |
we derive a new bound on the dimension of images of period maps of global pure polarized integral variations of hodge structures with generic hodge datum of level at least 3. when the generic mumford - tate domain of the variation is a period domain parametrizing hodge structures with given hodge numbers, we prove that... | arxiv:2412.07053 |
we present pandora, a new software to model, detect, and characterize transits of extrasolar planets with moons in stellar photometric time series. pandora uses an analytical description of the transit light curve for both the planet and the moon in front of a star with atmospheric limb darkening and it covers all case... | arxiv:2205.09410 |
we present a bijection between permutation matrices and descending plane partitions without special parts, which respects the quadruple of statistics considered by behrend, di francesco and zinn - - justin. this bijection involves the inversion words of permutations and the " usual " representation of descending plane ... | arxiv:1806.05381 |
integrative complexity ( ic ) is a psychometric that measures the ability of a person to recognize multiple perspectives and connect them, thus identifying paths for conflict resolution. ic has been linked to a wide variety of political, social and personal outcomes but evaluating it is a time - consuming process requi... | arxiv:1906.02057 |
the spatially precise integration of arrays of micro - patterned two - dimensional ( 2d ) crystals onto three - dimensionally structured si / sio $ _ 2 $ substrates represents an attractive strategy towards the low - cost system - on - chip integration of extended functions in silicon microelectronics. however, the rel... | arxiv:2306.14927 |
recently, it has been observed that the effective dipolar interactions between nuclear spins of spin - carrying molecules of a gas in a closed nano - cavities are independent of the spacing between all spins. we derive exact time - dependent polarization for all spins in spin - 1 / 2 ensemble with spatially independent... | arxiv:quant-ph/0306055 |
currently, mobile network operators are allocated spectrum bands on an exclusive basis. while this approach facilitates interference control, it may also result in low spectrum utilization efficiency. inter - operator spectrum sharing is a potential method to enhance spectrum utilization. in order to realize it, a prot... | arxiv:1505.02898 |
we propose simulation strategies for single production of third generation vector - like quarks at the lhc, implementing next - to - leading - order corrections in qcd and studying in detail their effect on cross sections and differential distributions. we also investigate the differences and the relative incertitudes ... | arxiv:1811.05055 |
high - temperature solid - state reaction between orthorhombic agf2 and monoclinic cuf2 ( y = 0. 15, 0. 3, 0. 4, 0. 5 ) in a fluorine atmosphere resulted in coexisting solid solutions of cu - poor orthorhombic and cu - rich monoclinic phases with stoichiometry ag1 - xcuxf2. based on x - ray powder diffraction analyses,... | arxiv:2304.02257 |
abstract data has no natural scale and so interactive data visualizations must provide techniques to allow the user to choose their viewpoint and scale. such techniques are well established in desktop visualization tools. the two most common techniques are zoom + pan and overview + detail. however, how best to enable t... | arxiv:2008.09941 |
context : the origin of galactic cosmic rays is still a mystery, in particular the sources and acceleration mechanism for cosmic rays with energies up to or beyond a pev. recently lhaaso has and h. e. s. s have shown that two gamma - ray sources associated with superbubbles created by young massive stellar clusters are... | arxiv:2406.03555 |
we present the design and implementation of the japanese virtual observatory ( jvo ) system. jvo is a portal site to various kinds of astronomical resources distributed all over the world. we have developed five components for constructing the portal : ( 1 ) registry, ( 2 ) data service, ( 3 ) workflow system, ( 4 ) da... | arxiv:astro-ph/0604593 |
we formulate the einstein - podolsky - rosen ( epr ) gedankenexperiment within the framework of relativistic quantum theory to analyze a situation in which measurements are performed by moving observers. we point out that under certain conditions the perfect anti - correlation of an epr pair of spins in the same direct... | arxiv:quant-ph/0211177 |
we present the calculations of the complete next - to - leading order ( nlo ) qcd effects on the single top productions induced by model - independent $ tqg $ flavor - changing neutral - current couplings at hadron colliders. our results show that, for the $ tcg $ coupling the nlo qcd corrections can enhance the total ... | arxiv:0910.4349 |
we study decentralized protection strategies against susceptible - infected - susceptible ( sis ) epidemics on networks. we consider a population game framework where nodes choose whether or not to vaccinate themselves, and the epidemic risk is defined as the infection probability at the endemic state of the epidemic u... | arxiv:1703.08750 |
our direct knowledge of solar eruptive events is limited to several decades and does not include extreme events, which can only be studied by the indirect proxy method over millennia, or by a large number of sun - like stars. there is a gap, spanning 1 - - 2 orders of magnitude, in the strength of events between direct... | arxiv:2005.10597 |
the gravitationally lensed star whl0137 - ls, nicknamed earendel, was identified with a photometric redshift $ z _ { phot } = 6. 2 \ pm 0. 1 $ based on images taken with the hubble space telescope. here we present james webb space telescope ( jwst ) near infrared camera ( nircam ) images of earendel in 8 filters spanni... | arxiv:2208.09007 |
in the standard flat cosmological constant ( $ \ lambda $ ) cold dark matter ( cdm ) cosmology, a model of two populations of lens halos for strong gravitational lensing can reproduce the results of the jodrell - bank vla astrometric survey ( jvas ) and the cosmic lens all - sky survey ( class ) radio survey. in such a... | arxiv:astro-ph/0306445 |
recurrent neural networks ( rnns ) have achieved state - of - the - art performance on many diverse tasks, from machine translation to surgical activity recognition, yet training rnns to capture long - term dependencies remains difficult. to date, the vast majority of successful rnn architectures alleviate this problem... | arxiv:1702.07805 |
smooth solutions of the forced incompressible euler equations satisfy an energy balance, where the rate - of - change in time of the kinetic energy equals the work done by the force per unit time. interesting phenomena such as turbulence are closely linked with rough solutions which may exhibit { \ it inviscid dissipat... | arxiv:2404.12572 |
a hamiltonian two - field gyrofluid model for kinetic alfv \ ' en waves ( kaws ) in a magnetized electron - proton plasma, retaining ion finite - larmor - radius corrections and parallel magnetic field fluctuations, is used to study the inverse cascades that develop when turbulence is randomly driven at sub - ion scale... | arxiv:2007.06976 |
we use single track laser melting experiments and simulations on inconel 625 to estimate the dimensions and microstructures of the resulting melt pools. our work is based on a design - of - experiments approach which uses multiple laser power and scan speed combinations. single track experiments generate melt pools of ... | arxiv:1802.05827 |
in - depth analyses of existing direct numerical simulations ( dns ) data from various sources supported a logical and important classification of generic turbulent boundary layers ( tbl ), namely type - a, - b and - c tbl, based on distribution patterns of time - averaged wall - shear stress. among these types, type -... | arxiv:1904.08606 |
deep neural networks are incredibly vulnerable to crafted, human - imperceptible adversarial perturbations. although adversarial training ( at ) has proven to be an effective defense approach, we find that the at - trained models heavily rely on the input low - frequency content for judgment, accounting for the low sta... | arxiv:2212.12732 |
we use extreme value statistics to study the dynamics of coarsening in aggregation - fragmentation models which form condensates in the steady state. the dynamics is dominated by the formation of local condensates on a coarsening length scale which grows in time in both the zero range process and conserved mass aggrega... | arxiv:2210.15742 |
an expression is obtained on the basis of phase perturbation theory for the contribution to the mean differential reflection coefficient from the in - plane co - polarized component of the light scattered diffusely from a two - dimensional randomly rough dielectric surface when the latter is illuminated by s - polarize... | arxiv:1512.09025 |
quantization of constraint systems within the weyl - wigner - groenewold - moyal framework is discussed. constraint dynamics of classical and quantum systems is reformulated using the skew - gradient projection formalism. the quantum deformation of the dirac bracket is generalized to match smoothly the classical dirac ... | arxiv:hep-th/0610074 |
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