text
stringlengths
1
3.65k
source
stringlengths
15
79
in previous work, we developed a deep neural network classifier that only relies on phase - space information to obtain a catalog of accreted stars based on the second data release of gaia ( dr2 ). in this paper, we apply two clustering algorithms to identify velocity substructure within this catalog. we focus on the s...
arxiv:1907.07681
trappist - 1 hosts seven earth - sized planets transiting an m8 star. we observed mid - transit times of each of the inner two planets with the astrophysical research consortium ( arc ) 3. 5 m telescope at apache point observatory ( apo ) to help constrain the planet masses with transit timing variations, and we outlin...
arxiv:1801.04460
this paper introduces the fft - enhanced kalman filter ( fftkf ), a differentially private optimization method that addresses the challenge of preserving performance in dp - sgd, where added noise typically degrades model utility. fftkf integrates frequency - domain noise shaping with kalman filtering to enhance gradie...
arxiv:2505.04468
the bender - dunne basis operators, $ \ mathsf { t } _ { - m, n } = 2 ^ { - n } \ sum _ { k = 0 } ^ n { n \ choose k } \ mathsf { q } ^ k \ mathsf { p } ^ { - m } \ mathsf { q } ^ { n - k } $ where $ \ mathsf { q } $ and $ \ mathsf { p } $ are the position and momentum operators respectively, are formal integral operat...
arxiv:1509.00340
we say that wiener ' s property holds for the exponent $ p > 0 $ if we have that whenever a positive definite function $ f $ belongs to $ l ^ p ( - \ epsilon, \ epsilon ) $ for some $ \ epsilon > 0 $, then $ f $ necessarily belongs to $ l ^ p ( \ tt ) $, too. this holds true for $ p \ in 2 \ nn $ by a classical result ...
arxiv:0711.0676
1 : k \ in \ mathbb { z } \ } } the set of even numbers is a prime ideal of z { \ displaystyle \ mathbb { z } } and the quotient ring z / 2 z { \ displaystyle \ mathbb { z } / 2 \ mathbb { z } } is the field with two elements. parity can then be defined as the unique ring homomorphism from z { \ displaystyle \ mathbb {...
https://en.wikipedia.org/wiki/Parity_(mathematics)
modern machine learning ( ml ) models are becoming increasingly popular and are widely used in decision - making systems. however, studies have shown critical issues of ml discrimination and unfairness, which hinder their adoption on high - stake applications. recent research on fair classifiers has drawn significant a...
arxiv:2206.03656
most of the current transformer - based chemical language models are pre - trained on millions to billions of molecules. however, the improvement from such scaling in dataset size is not confidently linked to improved molecular property prediction. the aim of this study is to investigate and overcome some of the limita...
arxiv:2503.03360
graph convolutional networks ( gcns ) are powerful tools for graph - structured data. however, they have been recently shown to be vulnerable to topological attacks. to enhance adversarial robustness, we go beyond spectral graph theory to robust graph theory. by challenging the classical graph laplacian, we propose a n...
arxiv:1905.10029
in this paper, we study the following two hypercube coloring problems : given $ n $ and $ d $, find the minimum number of colors, denoted as $ { \ chi } ' _ { d } ( n ) $ ( resp. $ { \ chi } _ { d } ( n ) $ ), needed to color the vertices of the $ n $ - cube such that any two vertices with hamming distance at most $ d ...
arxiv:1001.2209
an analytic phenomenological shell model mass formula for light nuclei is constructed., the formula takes into account the non locality of the self consistent single particle potential and the special features of light nuclei, namely : a ) charge and mass distributions are closer to a gaussian shape than to the shape c...
arxiv:1207.6050
aims. excitation of far - infrared and submillimetric molecular lines may originate from nonreactive collisions, chemical formation, or far infrared, near - infrared, and optical fluorescences. as a template, we investigate the impact of each of these processes on the excitation of the methylidyne cation ch + and on th...
arxiv:1211.5528
we study the problem of realizing the full spectrum of bipedal locomotion on a real robot with sim - to - real reinforcement learning ( rl ). a key challenge of learning legged locomotion is describing different gaits, via reward functions, in a way that is intuitive for the designer and specific enough to reliably lea...
arxiv:2011.01387
recent studies have extended the use of the stochastic hamilton - jacobi - bellman ( hjb ) equation to include complex variables for deriving quantum mechanical equations. however, these studies often assume that it is valid to apply the hjb equation directly to complex numbers, an approach that overlooks the fundament...
arxiv:2404.15964
convolutional neural networks ( cnns ) have demonstrated their effectiveness in numerous vision tasks. however, their high processing requirements necessitate efficient hardware acceleration to meet the application ' s performance targets. in the space of fpgas, streaming - based dataflow architectures are often adopte...
arxiv:2403.18921
we consider a family of linear control systems $ \ dot { x } = ax + \ alpha bu $ where $ \ alpha $ belongs to a given class of persistently exciting signals. we seek maximal $ \ alpha $ - uniform stabilisation and destabilisation by means of linear feedbacks $ u = kx $. we extend previous results obtained for bidimensi...
arxiv:1308.3758
quantum coherence has received significant attention in recent years, but its study is mostly conducted in single party settings. in this paper, we generalize important results in multipartite entanglement theory to their counterparts in quantum coherence theory. first, we give a necessary and sufficient condition for ...
arxiv:1807.06308
given a graph $ g $, a hypergraph $ \ mathcal { h } $ is a berge copy of $ f $ if $ v ( g ) \ subset v ( \ mathcal { h } ) $ and there is a bijection $ f : e ( g ) \ rightarrow e ( \ mathcal { h } ) $ such that for any edge $ e $ of $ g $ we have $ e \ subset f ( e ) $. we study ramsey problems for berge copies of grap...
arxiv:1906.02465
we present near - infrared speckle interferometry of the oh / ir star oh 104. 9 + 2. 4 in the k ' band obtained with the 6m telescope of the special astrophysical observatory ( sao ). at a wavelength of lambda = 2. 12 micron the diffraction - limited resolution of 74 mas was attained. the reconstructed visibility revea...
arxiv:astro-ph/0406092
the fourier transform of the indicator function of arbitrary polygons and polyhedra is computed for complex wavevectors. using the divergence theorem and stokes ' theorem, closed expressions are obtained. apparent singularities, all removable, are discussed in detail. loss of precision due to cancellation near the sing...
arxiv:1703.00255
we studied the magnetoresistance of normal metal ( nm ) / ferromagnet ( fm ) bilayers in the linear and nonlinear ( current - dependent ) regimes and compared it with the amplitude of the spin - orbit torques and thermally induced electric fields. our experiments reveal that the magnetoresistance of the heavy nm / co b...
arxiv:1510.06285
in 2002, a method has been proposed by buchholz et al. in the context of local quantum physics, to characterize states that are locally in thermodynamic equilibrium. it could be shown for the model of massless bosons that these states exhibit quite interesting properties. the mean phase - space density satisfies a tran...
arxiv:math-ph/0504074
we show that if $ x $ is an arc - like continuum which can be represented as an inverse limit of a simplicial inverse system on arcs, then for every point $ x \ in x $ there is a plane embedding of $ x $ in which $ x $ is accessible. this answers a special case of the nadler - quinn question from 1972.
arxiv:2311.14128
we consider the { \ em correlated knapsack orienteering } ( csko ) problem : we are given a travel budget $ b $, processing - time budget $ w $, finite metric space $ ( v, d ) $ with root $ \ rho \ in v $, where each vertex is associated with a job with possibly correlated random size and random reward that become know...
arxiv:2408.16566
we study vanishing results for l2 - cohomology of countable groups under the presence of subgroups that satisfy some weak normality condition. as a consequence we show that the l2 - betti numbers of sl ( n, r ) for any infinite integral domain r vanish below degree n - 1. we also give a uniform proof for the vanishing ...
arxiv:1206.4793
in merger - driven models of massive galaxy evolution, the luminous quasar phase is expected to be accompanied by vigorous star formation in quasar host galaxies. in this paper, we use high column density damped lyman alpha ( dla ) systems along quasar sight lines as natural coronagraphs to directly study the far - uv ...
arxiv:1408.0829
in this work we study invertible bloom lookup tables ( iblts ) with small failure probabilities. iblts are highly versatile data structures that have found applications in set reconciliation protocols, error - correcting codes, and even the design of advanced cryptographic primitives. for storing $ n $ elements and ens...
arxiv:2306.07583
in their 1995 paper, jean - beno \ ^ { i } t bost and alain connes ( bc ) constructed a quantum dynamical system whose partition function is the riemann zeta function $ \ zeta ( \ beta ) $, where $ \ beta $ is an inverse temperature. we formulate riemann hypothesis ( rh ) as a property of the low temperature kubo - mar...
arxiv:1012.4665
magnetic chemically peculiar ( mcp ) stars exhibit complex atmospheres that allow the investigation of such diverse phenomena as atomic diffusion, magnetic fields, and stellar rotation. the advent of space - based photometry provides the opportunity for the first precise characterizations of the photometric variability...
arxiv:1808.05669
in this paper we develop the analytic theory of a multiple zeta function in d independent complex variables defined over a global function field. this is the function field analog of the euler - zagier multiple zeta function of depth d.
arxiv:math/0512027
we study the open string extension of the mirror map for n = 1 supersymmetric type ii vacua with d - branes on non - compact calabi - yau manifolds. its definition is given in terms of a system of differential equations that annihilate certain period and chain integrals. the solutions describe the flat coordinates on t...
arxiv:hep-th/0111113
the variational determination of the two - particle density matrix is an interesting, but not yet fully explored technique that allows to obtain ground - state properties of a quantum many - body system without reference to an $ n $ - particle wave function. the one - dimensional fermionic hubbard model has been studie...
arxiv:1110.5732
global strings ( those which couple to goldstone modes ) may play a role in cosmology. in particular, if the qcd axion exists, axionic strings may control the efficiency of axionic dark matter abundance. the string network dynamics depend on the string intercommutation efficiency ( whether strings re - connect when the...
arxiv:1604.02356
we examine the regge ( high energy ) limit of 4 - point scattering in both qcd and gravity, using recently developed techniques to systematically compute all corrections up to next - to - leading power in the exchanged momentum i. e. beyond the eikonal approximation. we consider the situation of two scalar particles of...
arxiv:1611.02172
we have previously found in the hubble deep field a significant angular correlation of faint, high color - redshift objects on scales below one arcsecond, or several kiloparsecs in metric size. we examine the correlation and nearest neighbor statistics to conclude that 38 % of these objects in the hdf have a companion ...
arxiv:astro-ph/9702030
we investigate the properties of a static, cylindrically symmetric majumdar - papapetrou - type solution of einstein - maxwell equations. we locate its singularities, establish its algebraic type, find its asymptotic properties and weak - field limit, study the structure of electrogeodesics, and determine the mass and ...
arxiv:1611.07192
transfer learning for partial differential equations ( pdes ) is to develop a pre - trained neural network that can be used to solve a wide class of pdes. existing transfer learning approaches require much information of the target pdes such as its formulation and / or data of its solution for pre - training. in this w...
arxiv:2301.11701
we discuss a few examples of rich newly developing field of double parton scattering. we start our presentation from production of two pairs of charm quark - antiquark and argue that it is the golden reaction to study the double parton scattering effects. in addition to the dps we consider briefly also mechanism of sin...
arxiv:1504.06491
recent works on predictive uncertainty estimation have shown promising results on out - of - distribution ( ood ) detection for semantic segmentation. however, these methods struggle to precisely locate the point of interest in the image, i. e, the anomaly. this limitation is due to the difficulty of finegrained predic...
arxiv:2207.08782
we study the sensitivity of the hellaz and borexino solar neutrino experiments on discriminating the neutrino species nu _ e, anti - nu _ e, nu _ { mu, tau }, anti - nu _ { mu, tau }, and nu _ { sterile } using the difference in the recoil electron kinetic energy spectra in elastic neutrino - electron scattering. we fi...
arxiv:hep-ph/0003210
we test the holographic conjecture for brane black holes : that a full classical 5d solution will correspond to a quantum corrected 4d black hole. we show that a schwarzschild - ads black string in the bulk can be consistently interpreted as a quantum - corrected black hole on the brane, but the form of the quantum cor...
arxiv:0802.2037
we propose a new cryptosystem by combing the lissajous map, which is the asymptotic model of deterministic randomness, with the one - way coupled map lattice ( ocml ) system. the key space, the encryption efficiency, and the security are investigated. we find that the parameter sensitivity can reach the computational p...
arxiv:nlin/0507063
in this paper we deal with the problem of axiomatizing the preference relations modelled through choquet integral with respect to a $ k $ - additive capacity, i. e. whose m \ " obius transform vanishes for subsets of more than $ k $ elements. thus, $ k $ - additive capacities range from probability measures ( $ k = 1 $...
arxiv:0711.2489
we study in this paper a variant of wasserstein barycenter problem, which we refer to as tree - wasserstein barycenter, by leveraging a specific class of ground metrics, namely tree metrics, for wasserstein distance. drawing on the tree structure, we propose an efficient algorithmic approach to solve the tree - wassers...
arxiv:1910.04483
a holomorphic 1 - form on a compact riemann surface s naturally defines a flat metric on s with cone - type singularities. we present the following surprising phenomenon : having found a geodesic segment ( saddle connection ) joining a pair of conical points one can find with a nonzero probability another saddle connec...
arxiv:math/0202134
discovering the governing laws underpinning physical and chemical phenomena is a key step towards understanding and ultimately controlling systems in science and engineering. we introduce discovery of dynamical systems via moving horizon optimization ( dysmho ), a scalable machine learning framework for identifying gov...
arxiv:2108.00069
lidar semantic segmentation provides 3d semantic information about the environment, an essential cue for intelligent systems during their decision making processes. deep neural networks are achieving state - of - the - art results on large public benchmarks on this task. unfortunately, finding models that generalize we...
arxiv:2010.12239
using data collected with the hypercp ( e871 ) spectrometer during the 1997 fixed - target run at fermilab, we report the first observation of the decay k - - > pi - mu + mu - and new measurements of the branching ratios for k + / - - > pi + / - mu + mu -. by combining the branching ratios for the k + and k - decays, w...
arxiv:hep-ex/0110033
traffic analysis attacks can counteract end - to - end encryption and use leaked communication metadata to reveal information about communicating parties. with an ever - increasing amount of traffic by an ever - increasing number of networked devices, communication privacy is undermined. therefore, anonymous communicat...
arxiv:2212.08275
soft prompt tuning achieves superior performances across a wide range of few - shot tasks. however, the performances of prompt tuning can be highly sensitive to the initialization of the prompts. we also empirically observe that conventional prompt tuning methods cannot encode and learn sufficient task - relevant infor...
arxiv:2306.04933
we propose the approach of model - based differentially private synthesis ( modips ) in the bayesian framework for releasing individual - level surrogate / synthetic datasets with privacy guarantees given the original data. the modips technique integrates the concept of differential privacy into model - based data synt...
arxiv:1606.08052
the essence of the method of physics is inseparably connected with the problem of interplay between local and global properties of the universe. in the present paper we discuss this interplay as it is present in three major departments of contemporary physics : general relativity, quantum mechanics and some attempts at...
arxiv:gr-qc/9702047
this paper describes an engine to optimize web publisher revenues from second - price auctions. these auctions are widely used to sell online ad spaces in a mechanism called real - time bidding ( rtb ). optimization within these auctions is crucial for web publishers, because setting appropriate reserve prices can sign...
arxiv:2006.07083
recent experiments observe the spin - wave - meissner - current modes in ferromagnetic insulator - superconductor heterostructures, in which the coherently excited spin waves seemingly do not decay as usual beneath the superconductor strip [ borst et al., science 382, 430 ( 2023 ) ]. we interpret this phenomenon by dem...
arxiv:2404.02598
a systematic study of 160 heavy and super - heavy nuclei is performed in the hartree - fock - bogoliubov approach with the finite range and density dependent gogny force with the d1s parameter set. we show calculations in several approximations : with axially symmetric and reflexion symmetric wave functions, with axial...
arxiv:1204.5867
a two - variable stochastic model for diffusion - limited nucleation is developed using a formalism derived from fluctuating hydrodynamics. the model is a direct generalization of the standard classical nucleation theory. the nucleation rate and pathway are calculated in the weak - noise approximation and are shown to ...
arxiv:1409.5562
the action potential is widely considered a purely electrical phenomenon. however, one also finds mechanical and thermal changes that can be observed experimentally. in particular, nerve membranes become thicker and axons contract. the spatial length of the action potential can be quite large, ranging from millimeters ...
arxiv:2408.07615
large numbers of ground states of two - dimensional ising spin glasses with periodic boundary conditions in both directions are calculated for sizes up to 40 ^ 2. a combination of a genetic algorithm and cluster - exact approximation is used. for each quenched realization of the bonds up to 40 independent ground states...
arxiv:cond-mat/9810037
in this note, we show that there exist cusped hyperbolic $ 3 $ - manifolds that embed geodesically, but cannot bound geometrically. thus, being a geometric boundary is a non - trivial property for such manifolds. our result complements the work by long and reid on geometric boundaries of compact hyperbolic $ 4 $ - mani...
arxiv:1811.05509
let x and x ' be compact riemann surfaces of genus at least three. let g and g ' be nontrivial connected semisimple linear algebraic groups over c. if some components $ m _ { dh } ^ d ( x, g ) $ and $ m _ { dh } ^ { d ' } ( x ', g ' ) $ of the associated deligne - - hitchin moduli spaces are biholomorphic, then x ' is ...
arxiv:1202.6518
control of the living cell functions with remarkable reliability despite the stochastic nature of the underlying molecular networks - - a property presumably optimized by biological evolution. we here ask to what extent the property of a stochastic dynamical network to produce reliable dynamics is an evolvable trait. u...
arxiv:0707.1407
access to continuous, quality assessed meteorological data is critical for understanding the climatology and atmospheric dynamics of a region. research facilities like oak ridge national laboratory ( ornl ) rely on such data to assess site - specific climatology, model potential emissions, establish safety baselines, a...
arxiv:2502.05191
= = prominent practitioners and advocates of recreational mathematics have included professional and amateur mathematicians : = = see also = = list of recreational number theory topics mathematics of paper folding ( origami ) = = references = = = = further reading = = w. w. rouse ball and h. s. m. coxeter ( 1987 ). mat...
https://en.wikipedia.org/wiki/Recreational_mathematics
several investigations in the study of cosmological structure formation use numerical simulations in both two and three dimensions. in this paper we address the subtle question of ambiguities in the nature of two dimensional gravity in an expanding background. we take a detailed and formal approach by deriving the equa...
arxiv:astro-ph/9805192
sr2iro4 was predicted to be a high temperature superconductor upon electron doping since it highly resembles the cuprates in crystal structure, electronic structure and magnetic coupling constants. here we report a scanning tunneling microscopy / spectroscopy ( stm / sts ) study of sr2iro4 with surface electron doping ...
arxiv:1506.06557
in the vast expanse of our galaxy, white dwarfs ( wds ) are natural sentinels, capturing the enigmatic dark matter ( dm ) particles that incessantly traverse their interiors. these celestial bodies provide a unique vantage point for probing interactions between dm particles and their constituents - nuclei or electrons ...
arxiv:2406.03100
this paper investigates the optimization of reconfigurable intelligent surface ( ris ) in an integrated sensing and communication ( isac ) system. \ red { to meet the demand of growing number of devices, power domain non - orthogonal multiple access ( noma ) is considered. however, traditional noma with a large number ...
arxiv:2309.06080
the p300 speller is being considered as an independent brain - computer interface. that means it measures the user ' s intent, and does not require the user to move any muscles. in particular it should not require eye fixation of the desired character. however, it has been shown that posterior electrodes provide signif...
arxiv:1006.3688
existence and non - existence of integrable stationary solutions to smoluchowski ' s coagulation equation with source are investigated when the source term is integrable with an arbitrary support in ( 0, $ \ infty $ ). besides algebraic upper and lower bounds, a monotonicity condition is required for the coagulation ke...
arxiv:2006.15879
a novel framework for performance analysis and code design is proposed to address the sneak path ( sp ) problem in resistive random - access memory ( reram ) arrays. the main idea is to decompose the reram channel, which is both non - ergodic and data - dependent, into multiple stationary memoryless channels. a finite ...
arxiv:2412.06275
using a new spectroscopic sample and methods accounting for spectroscopic sampling fractions that vary in magnitude and surface brightness, we present r - band galaxy luminosity functions ( glfs ) for six nearby galaxy clusters with redshifts 4000 < cz < 20000 km / s and velocity dispersions 700 < sigma < 1250 km / s. ...
arxiv:astro-ph/0304031
we experimentally observed the enhanced contact angle hysteresis ( cah ) of dilute aqueous salt solution on graphite surface, i. e., 40. 6 $ ^ \ circ $, 34. 6 $ ^ \ circ $, and 27. 8 $ ^ \ circ $, for licl, nacl, and kcl, indicating the effective tuning of the cahs by cations. molecular dynamics simulations reveal that...
arxiv:2004.02148
deep convolutional neural networks ( convnets ) have been recently shown to attain state - of - the - art performance for action recognition on standard - resolution videos. however, less attention has been paid to recognition performance at extremely low resolutions ( elr ) ( e. g., 16 x 12 pixels ). reliable action r...
arxiv:1610.03898
we introduce an analogue $ k _ n ( x, z ; q, t ) $ of the cauchy - type kernel function for the macdonald polynomials, being constructed in the tensor product of the ring of symmetric functions and the commutative algebra $ \ mathcal { a } $ over the degenerate $ \ mathbb { c } \ mathbb { p } ^ 1 $. we show that a cert...
arxiv:1002.2485
a first order phase transition usually proceeds by nucleating bubbles of the new phase which then rapidly expand. in confining gauge theories with a gravity dual, the deconfined phase is often described by a black hole. if one starts in this phase and lowers the temperature, the usual description of how the phase trans...
arxiv:hep-th/0701099
it is well known that many machine learning systems demonstrate bias towards specific groups of individuals. this problem has been studied extensively in the facial recognition area, but much less so in automatic speech recognition ( asr ). this paper presents initial speech recognition results on " casual conversation...
arxiv:2111.09983
we obtain large n asymptotics for products of powers of the absolute values of the characteristic polynomials in the gaussian unitary ensemble of n \ times n matrices. our results can also be interpreted as asymptotics of the determinant of a hankel matrix whose symbol is supported on the real line and possesses power ...
arxiv:math-ph/0411016
we construct the creation operator of a vortex for su ( 2 ) pure gauge theory using the methods developed for monopoles. we interpret its vacuum expectation value as a disorder parameter for the deconfinement phase transition and find that it behaves in the vacuum in a similar way to monopoles. results are extrapolated...
arxiv:hep-lat/0010044
the quasiparticle band structures of four polytypes 3c, 6h, 4h, and 2h of gap, gaas, gasb, inp, inas, and insb are computed with high accuracy including spin - orbit interaction applying a recently developed approximate calculation scheme, the lda - 1 / 2 method. the results are used to derive band offsets $ \ delta e ...
arxiv:1206.2209
the visual object category reports of artificial neural networks ( anns ) are notoriously sensitive to tiny, adversarial image perturbations. because human category reports ( aka human percepts ) are thought to be insensitive to those same small - norm perturbations - - and locally stable in general - - this argues tha...
arxiv:2308.06887
we present the first lattice - qcd $ x $ - dependent pion valence - quark generalized parton distribution ( gpd ) calculated directly at physical pion mass using the large - momentum effective theory ( lamet ) with next - to - next - to - leading order perturbative matching correction. we use clover fermions for the va...
arxiv:2310.10579
we present a first - principles density functional study of the structural, electronic and magnetic properties of the ferroelectric domain walls in multiferroic bifeo3. we find that domain walls in which the rotations of the oxygen octahedra do not change their phase when the polarization reorients are the most favorab...
arxiv:0909.5294
understanding the thermodynamic phase transition of black holes can provide a deep insight into the fundamental properties of black hole gravity to establish the theory of quantum gravity. we investigate the condition and latent heat of phase transition for non - linear charged ads black holes using the maxwell ' s equ...
arxiv:2112.10403
network available, and with probability p { \ displaystyle p }, connects to each. thus, e [ ⟨ k ⟩ ] = e [ k ] = p ( n − 1 ) { \ displaystyle \ mathbb { e } [ \ langle k \ rangle ] = \ mathbb { e } [ k ] = p ( n - 1 ) }. degree distribution the degree distribution p ( k ) { \ displaystyle p ( k ) } is a fundamental prop...
https://en.wikipedia.org/wiki/Network_science
we introduce and study the concept of generating function for natural elements in a dedekind complete riesz space equipped with a conditional expectatnion operator. this allows to study discrete processes in free - measure setting. in particular we improve a result obtained by kuo, vardy and watson concerning poisson a...
arxiv:2212.00673
the resistivity, magnetoresistance, and magnetic susceptibility are measured in single crystals of fete0. 65se0. 35 with cu, ni, and co substitutions for fe. the crystals are grown by bridgman ' s method. the resistivity measurements show that superconductivity disappears with the rate which correlates with the nominal...
arxiv:1205.6295
we introduce the notion of metric lie algebras of killing type, which are characterized by the fact that all conformal killing symmetric tensors are sums of killing tensors and multiples of the metric tensor. we show that if a lie algebra is either 2 - step nilpotent, or 2 - or 3 - dimensional, or 4 - dimensional non -...
arxiv:2012.08337
standard stochastic loewner evolution ( sle ) is driven by a continuous brownian motion, which then produces a continuous fractal trace. if jumps are added to the driving function, the trace branches. we consider a generalized sle driven by a superposition of a brownian motion and a stable levy process. the situation i...
arxiv:cond-mat/0509187
expanding the receptive field to capture large - scale context is key to obtaining good performance in dense prediction tasks, such as human pose estimation. while many state - of - the - art fully - convolutional architectures enlarge the receptive field by reducing resolution using strided convolution or pooling laye...
arxiv:1906.11367
let $ \ xi = ( \ xi _ t ) $ be a locally finite $ ( 2, \ beta ) $ - superprocess in $ \ rr ^ d $ with $ \ beta < 1 $ and $ d > 2 / \ beta $. then for any fixed $ t > 0 $, the random measure $ \ xi _ t $ can be a. s. approximated by suitably normalized restrictions of lebesgue measure to the $ \ varepsilon $ - neighborh...
arxiv:1201.6437
large language models ( llms ) have shown remarkable comprehension abilities but face challenges in gpu memory usage during inference, hindering their scalability for real - time applications like chatbots. to accelerate inference, we store computed keys and values ( kv cache ) in the gpu memory. existing methods study...
arxiv:2405.12532
a class of models is presented, in the form of continuation monads polymorphic for first - order individuals, that is sound and complete for minimal intuitionistic predicate logic. the proofs of soundness and completeness are constructive and the computational content of their composition is, in particular, a $ \ beta ...
arxiv:1102.1061
the solution of energy - balance model of the earth global climate and the epica dome c and vostok experimental data of the earth surface palaeotemperature evolution over past 420 and 740 kyr are compared. in the framework of proposed bifurcation model ( i ) the possible sharp warmings of the dansgaard - oeschger type ...
arxiv:0803.2766
we report an all - fiber - based experimental setup to generate a correlated photon - pair comb using four wave mixing ( fwm ) in highly non - linear fiber ( hnlf ). temporal correlations of the generated photons were confirmed through coincidence measurements. we observed a maximum of 32 kcps, with a coincidence to ac...
arxiv:2412.03323
the aim of this work is to develop deep learning - based algorithms for high - dimensional stochastic control problems based on physics - informed learning and dynamic programming. unlike classical deep learning - based methods relying on a probabilistic representation of the solution to the hamilton - - jacobi - - bel...
arxiv:2402.15592
fungal symbionts are often overlooked in studies of plant invasion. nevertheless, their role could be essential to the competitive success of the invader. we studied fungal endophytes in the widespread invasive centaurea stoebe ( common knapweed ). a preliminary experiment showed that endophytes in roots of c. stoebe s...
arxiv:1209.1617
to detect anomalies in real - world graphs, such as social, email, and financial networks, various approaches have been developed. while they typically assume static input graphs, most real - world graphs grow over time, naturally represented as edge streams. in this context, we aim to achieve three goals : ( a ) insta...
arxiv:2402.11933
in this paper, we introduce a " partially disorder - averaged " syk model. this model has a real parameter that smoothly interpolates between the ordinary totally disorder - averaged syk model and the totally fixed - coupling model. for the large $ n $ effective description, in addition to the usual bi - local collecti...
arxiv:2111.11705
here we report that the source of si impurities commonly observed on ( 010 ) $ \ beta - ga _ 2o _ 3 $ is from exposure of the surface to air. moreover, we find that a 15 minute hf ( 49 % ) treatment reduces the si density by approximately 1 order of magnitude on ( 010 ) $ \ beta - ga _ 2o _ 3 $ surfaces. this reduction...
arxiv:2312.06851
optical cross - talk is a critical characteristic of silicon photomultipliers ( sipms ) and represents a significant source of the excess noise factor, exerting a substantial influence on detector performance. during the avalanche process of sipms, photons generated can give rise to both internal cross - talk within th...
arxiv:2312.12901