text stringlengths 1 3.65k | source stringlengths 15 79 |
|---|---|
underwater robots in shallow waters usually suffer from strong wave forces, which may frequently exceed robot ' s control constraints. learning - based controllers are suitable for disturbance rejection control, but the excessive disturbances heavily affect the state transition in markov decision process ( mdp ) or par... | arxiv:2007.14646 |
the android permission system is a set of controls to regulate access to sensitive data and platform resources ( e. g., camera ). the fast evolving nature of android permissions, coupled with inadequate documentation, results in numerous challenges for third - party developers. this study investigates the permission - ... | arxiv:2311.00074 |
in this paper, we establish the existence and uniqueness of solutions to stochastic heat equations with logarithmic nonlinearity driven by brownian motion on a bounded domain $ d $ in the setting of $ l ^ 2 ( d ) $ space. the result is valid for all initial values in $ l ^ 2 ( d ) $. the logarithmic sobolev inequality ... | arxiv:1907.03948 |
one significant advantage of superconducting processors is their extensive design flexibility, which encompasses various types of qubits and interactions. given the large number of tunable parameters of a processor, the ability to perform gradient optimization would be highly beneficial. efficient backpropagation for g... | arxiv:2406.18155 |
the possibility to control the coherent decay of resonant excitations in nuclear forward scattering is investigated. by changing abruptly the direction of the nuclear hyperfine magnetic field, the coherent scattering of photons can be manipulated and even completely suppressed via quantum interference effects between t... | arxiv:1003.3668 |
we discuss constraints on the rates of stirring and dissipation of mhd turbulence in molecular clouds. recent mhd simulations suggest that turbulence in clouds decays rapidly, thus providing a significant source of energy input, particularly if driven at small scales by, for example, bipolar outflows. we quantify the h... | arxiv:astro-ph/0101116 |
energy levels statistics following the gaussian symplectic ensemble ( gse ) of random matrix theory have been predicted theoretically and observed numerically in numerous quantum chaotic systems. however in all these systems there has been one unifying feature : the combination of half - integer spin and time - reversa... | arxiv:1302.2554 |
we study the collective electronic excitations in metallic single - and bilayer transition metal dichalcogenides ( tmdcs ) using time dependent density functional theory in the random phase approximation. for very small momentum transfers ( below $ q \ approx0. 02 $ ~ \ aa $ ^ { - 1 } $ ) the plasmon dispersion follows... | arxiv:1311.0158 |
violent solar flares and coronal mass ejections ( cmes ) are magnetic phenomena. however, how magnetic fields reconnecting in the flare differ from non - flaring magnetic fields remains unclear owing to the lack of studies of the flare magnetic properties. here we present a first statistical study of flaring ( highligh... | arxiv:2111.06048 |
we study the tunneling between two quantum hall systems, along a quasi one - dimensional interface. a detailed analysis relates microscopic parameters, characterizing the potential barrier, with the effective field theory model for the tunneling. it is shown that the phenomenon of fermion number fractionalization is ex... | arxiv:cond-mat/9405081 |
we study the statistical properties of the luminous red galaxies sample from the sloan digital sky survey. in particular we test, by determining the probability density function ( pdf ) of galaxy ( conditional ) counts in spheres, whether statistical properties are self - averaging within the sample. we find that there... | arxiv:1011.4855 |
the main goal of this paper is to obtain sufficient conditions that allow us to rigorously derive local versions of the 4 / 5 and 4 / 3 laws of hydrodynamic turbulence, by which we mean versions of these laws that hold in bounded domains. this is done in the context of stationary martingale solutions of the navier - st... | arxiv:2007.08838 |
prediction and characterization of crystal structures of alloys are a key problem in materials research. using high - throughput ab initio calculations we explore the low - temperature phase diagrams for the following systems : { bi - in, bi - mg, bi - sb, in - mg, in - sb, and mg - sb }. for the experimentally observe... | arxiv:cond-mat/0502535 |
with the availability of multi - object spectrometers and the designing \ & running of some large scale sky surveys, we are obtaining massive spectra. therefore, it becomes more and more important to deal with the massive spectral data efficiently and accurately. this work investigated the classification problem of ste... | arxiv:1903.07939 |
we have studied the dynamics of spreading of viscous non - volatile fluids on surfaces by mc simulations of sos models. we have concentrated on the complete wetting regime, with surface diffusion barriers neglected for simplicity. first, we have performed simulations for the standard sos model. formation of a single pr... | arxiv:cond-mat/9406017 |
millimeter wave ( mmwave ) communications can potentially meet the high data - rate requirements of unmanned aerial vehicle ( uav ) networks. however, as the prerequisite of mmwave communications, the narrow directional beam tracking is very challenging because of the three - dimensional ( 3d ) mobility and attitude va... | arxiv:2005.14064 |
we present local graph - based dictionary expansion ( lgde ), a method for data - driven discovery of the semantic neighbourhood of words using tools from manifold learning and network science. at the heart of lgde lies the creation of a word similarity graph from the geometry of word embeddings followed by local commu... | arxiv:2405.07764 |
a representation of complex rational numbers in quantum mechanics is described that is not based on logical or physical qubits. it stems from noting that the zeros in a product qubit state do not contribute to the number. they serve only as place holders. the representation is based on the distribution of four types of... | arxiv:quant-ph/0503154 |
we consider training models with differential privacy ( dp ) using mini - batch gradients. the existing state - of - the - art, differentially private stochastic gradient descent ( dp - sgd ), requires privacy amplification by sampling or shuffling to obtain the best privacy / accuracy / computation trade - offs. unfor... | arxiv:2103.00039 |
this paper explores the economics of augmented reality ( ar ) and virtual reality ( vr ) technologies within decision - making contexts. two metrics are proposed : context entropy, the informational complexity of an environment, and context immersivity, the value from full immersion. the analysis suggests that ar techn... | arxiv:2305.16872 |
in a p - wave fermi superfluid suffering from the nonmagnetic impurity scatterings, a coefficient of a gradient term becomes divergent upon cooling. consequences of this divergent rigidity in the stable vortices in the b phase in globally isotropic aerogel are considered where the " impurity scattering " events are bro... | arxiv:1905.02569 |
we study the magnetic hysteresis in the random field ising model in 3d. we discuss the disorder dependence of the coercive field h _ c, and obtain an analytical description of the smooth part of the hysteresis below and above h _ c, by identifying the disorder configurations ( instantons ) that are the most probable to... | arxiv:cond-mat/0505048 |
in this paper we extend results by de la harpe concerning the isometries of strictly convex hilbert geometries, and the characterisation of the isometry groups of hilbert geometries on finite dimensional simplices, to infinite dimensions. the proofs rely on a mix of geometric and functional analytic methods. | arxiv:1405.4147 |
a theory for the complexity of the bethe lattice spin - glass is developed applying to the cavity - method scheme of mezard and parisi the results recently obtained in the context of the sherrington - kirkpatrick model. the crucial ingredient is the introduction of a new cavity field z related to the marginality of the... | arxiv:cond-mat/0404729 |
we report full vector mapping of local magnetization in cealsi, a weyl semimetal in which both inversion and time - reversal symmetries are broken. the vector maps reveal unanticipated features both within domains and at their boundaries. boundaries between domains form two kinds of walls with distinct topology and the... | arxiv:2104.07706 |
a set of on shell duality equations is proposed that leads to a map between strings moving on symmetric spaces with opposite curvatures. the transformation maps " waves " on a riemannian symmetric space to " waves " on its dual riemannian symmetric space. this transformation preserves the energy momentum tensor though ... | arxiv:hep-th/0004120 |
most machine learning models for audio tasks are dealing with a handcrafted feature, the spectrogram. however, it is still unknown whether the spectrogram could be replaced with deep learning based features. in this paper, we answer this question by comparing the different learnable neural networks extracting features ... | arxiv:2207.09145 |
online social media play a major role in shaping public discourse and opinion, especially during political events. we present the first public multi - platform dataset of italian - language political conversations, focused on the 2022 italian general election taking place on september 25th. leveraging public apis and a... | arxiv:2301.05119 |
in the article we generalize the marcinkiewicz sampling theorem in the context of orlicz spaces. we establish conditions under which sampling theorem holds in terms of restricted submultiplicativity and supermultiplicativity of an $ n $ - function $ \ varphi $, boundedness of the hilbert transform and matuszewska - orl... | arxiv:2109.02368 |
we demonstrate that gamma - ray burst afterglow spectra and light curves can be calculated for arbitrary explosion and radiation parameters by scaling the peak flux and the critical frequencies connecting different spectral regimes. only one baseline calculation needs to be done for each jet opening angle and observer ... | arxiv:1111.3355 |
a reduction of total mean turbulent pressure due to the presence of magnetic fields was previously shown to be a measurable effect in direct numerical simulations. however, in the studied parameter regime the formation of large - scale structures, as anticipated from earlier mean - field simulations, was not found. an ... | arxiv:1012.4360 |
based on the understandings regarding linear upwind schemes with flux splitting to achieve free - stream preservation ( q. li, etc. commun. comput. phys., 22 ( 2017 ) 64 - 94 ), a series of weno interpolation - based and upwind - biased nonlinear schemes are proposed in this study. by means of engagement of fluxes on m... | arxiv:1810.11103 |
for super - heated water on a substrate with hydrophobic patches immersed in a hydrophilic matrix, one can choose the temperature so that micro - bubbles will form, grow and merge on the hydrophobic patches and not on the hydrophilic matrix. until covering a patch, making a pinned macro - bubble, a bubble has a contact... | arxiv:2301.05582 |
for the empty set and for a singleton are examples of roster notation. when specifying sets, it only matters whether each distinct element is in the set or not ; this means a set does not change if elements are repeated or arranged in a different order. for example, { 1, 2, 3, 4 } = { 4, 2, 1, 3 } = { 4, 2, 4, 3, 1, 3 ... | https://en.wikipedia.org/wiki/Set_(mathematics) |
the quest for an approximate yet accurate kinetic energy density functional is central to the development of orbital - free density functional theory. while a recipe for closed - shell systems has been proposed earlier, we have shown that it cannot be na \ " ively extended to open - shell atoms. in this present work, w... | arxiv:2208.06256 |
the generating functions of the severi degrees for sufficiently ample line bundles on algebraic surfaces are multiplicative in the topological invariants of the surface and the line bundle. recently new proofs of this fact were given for toric surfaces by block, colley, kennedy and liu, osserman, using tropical geometr... | arxiv:1511.02726 |
inorganic electrides are a new class of compounds catering to the interest of scientists due to the multiple usages exhibited by interstitial electrons in the lattice. however, the influence of the shape and distribution of interstitial electrons on physical properties and new forms of physical states are still unknown... | arxiv:2205.15004 |
the theory of thermoelectric effects in superconductors is discussed in connection to the recent publication by marinescu and overhauser, phys. rev. b 55, 11637 ( 1997 ). we argue that the charge on - conservation arguments by marinescu and overhauser do not require any revision of the boltzmann transport equation in s... | arxiv:cond-mat/0012347 |
the new generation of cmb polarization experiments will reach limits of sensitivity never achieved before to detect the primordial b - mode signal. however, all these efforts will be futile if we lack a tight control of systematics. here, we focus on the systematic that arises from the uncertainty on the calibration of... | arxiv:2110.14328 |
the theory of affine processes has been recently extended to the framework of stochastic volterra equations with continuous trajectories. these so - called affine volterra processes overcome modeling shortcomings of affine processes because they can have trajectories whose regularity is different from the regularity of... | arxiv:2203.06400 |
the statistics of the diffusive motion of particles often serve as an experimental proxy for their interaction with the environment. however, inferring the physical properties from the observed trajectories is challenging. inspired by a recent experiment, here we analyze the problem of particles undergoing two - dimens... | arxiv:2308.01100 |
we present simulation results of $ \ gamma $ + jet analysis using cms ( compact muon solenoid ) object - oriented software at the large hadron collider ( lhc ) center of mass energy $ \ sqrt { s } $ = 14 tev. the study of direct photon production helps in validating the perturbative quantum chromodynamics ( pqcd ) and ... | arxiv:0705.2740 |
in engineering examples, one often encounters the need to sample from unnormalized distributions with complex shapes that may also be implicitly defined through a physical or numerical simulation model, making it computationally expensive to evaluate the associated density function. for such cases, mcmc has proven to b... | arxiv:2411.17639 |
we review the class of cellular automata known as lattice gases, and their applications to problems in physics and materials science. the presentation is self - contained, and assumes very little prior knowledge of the subject. hydrodynamic lattice gases are emphasized, and non - lattice - gas cellular automata - - eve... | arxiv:comp-gas/9905001 |
assuming the current best - fit solutions to the solar neutrino problem at large mixing angle, we briefly illustrate how prospective data from the sudbury neutrino observatory ( sno ) and from the kamioka liquid scintillator anti - neutrino detector ( kamland ) can increase our confidence in the occurrence of standard ... | arxiv:hep-ph/0211414 |
curvature properties of the characteristic connection on an integrable $ g _ 2 $ space are investigated. it is proved that an integrable $ g _ 2 $ manifold has closed torsion if and only if the ricci tensor of the characteristic connection is equal to the covariant derivative of the lee form and in this case the integr... | arxiv:2307.06438 |
in this study, a spin - 1 / 2 extended anisotropic xy chain has been introduced in which both time reversal and su ( 2 ) symmetries are broken but $ z _ 2 $ symmetry is preserved. magnetic and topological phase diagrams in the parameter space have been drawn in the presence of transverse magnetic field. entanglement me... | arxiv:2310.11243 |
we construct the google matrix of the entire twitter network, dated by july 2009, and analyze its spectrum and eigenstate properties including the pagerank and cheirank vectors and 2dranking of all nodes. our studies show much stronger inter - connectivity between top pagerank nodes for the twitter network compared to ... | arxiv:1207.3414 |
constraining parameters such as the initial mass function high - mass slope and the frequency of type ia supernovae is of critical importance in the ongoing quest to understand galactic physics and create realistic hydrodynamical simulations. in this paper, we demonstrate a method to precisely determine these using ind... | arxiv:1909.00812 |
any bounded tile of the field $ \ mathbb { q } _ p $ of $ p $ - adic numbers is a compact open set up to a zero haar measure set. in this note, we give a simple and direct proof of this fact. | arxiv:1511.06404 |
the field of unmanned aerial vehicles ( uavs ) has reached a high level of maturity in the last few years. hence, bringing such platforms from closed labs, to day - to - day interactions with humans is important for commercialization of uavs. one particular human - uav scenario of interest for this paper is the payload... | arxiv:2207.05403 |
in this paper we are able to justify the existence or no of photons emitted during $ \ alpha $ decay, based on the average half life times using the bcs superconductivity and superfluidity theories. the proposed model suggests two possible channels. a first channel where the protons and neutrons interact separately thr... | arxiv:1110.5822 |
for single - sorted algebras, fujiwara defined, through the concept of family of basic mapping - formulas, a notion of morphism which generalizes the ordinary notion of homomorphism between algebras and an equivalence relation, the conjugation, on the families of basic mapping - formulas, which corresponds to the relat... | arxiv:1201.5239 |
different experience, but very important on this band ' s existence. " while the single " new skin " originated a few years prior, pasillas claimed in 2002 that for other songs they had two months to write the music. he added, " it was cool for us, because we had a lot of ideas and it was a pretty compressed amount of ... | https://en.wikipedia.org/wiki/S.C.I.E.N.C.E. |
if $ x $ is a 2 - segal set, then the edgewise subdivision of $ x $ admits a factorization system coming from upper and lower d \ ' ecalage. using the correspondence between 2 - segal sets and unary operadic categories satisfying the blow - up axiom, the edgewise subdivision of $ x $ is interpreted as an enlargement of... | arxiv:2312.00756 |
many real world applications can be framed as multi - objective optimization problems, where we wish to simultaneously optimize for multiple criteria. bayesian optimization techniques for the multi - objective setting are pertinent when the evaluation of the functions in question are expensive. traditional methods for ... | arxiv:1805.12168 |
we investigate the thermodynamical and causal consistency of cosmological models of the cubic quasi - topological gravity ( qtg ) in four dimensions, as well as their phenomenological consequences. specific restrictions on the maximal values of the matter densities are derived by requiring the apparent horizon ' s entr... | arxiv:1304.4185 |
##silon ^ \ delta, \, p \ geq 1 $ for some $ c, \ delta > 0 $ and all $ \ varepsilon > 0 $, where all $ \ xi ^ \ varepsilon, \, \ varepsilon > 0 $ have the same diffusion coefficients but underlying brownian motions may change with $ \ varepsilon $. | arxiv:2105.01940 |
in this paper, we present a novel computational framework for portfolio - wide risk management problems, where the presence of a potentially large number of risk factors makes traditional numerical techniques ineffective. the new method utilises a coupled system of bsdes for the valuation adjustments ( xva ) and solves... | arxiv:2005.02633 |
we consider the 3d inverse scattering problem with non - over - determined scattering data. the data are the scattering amplitude $ a ( \ beta, \ alpha _ 0, k ) $ for all $ \ beta \ in s _ \ beta ^ 2 $, where $ s _ \ beta ^ 2 $ is an open subset of the unit sphere $ s ^ 2 $ in $ \ mathbb { r } ^ 3 $, $ \ alpha _ 0 \ in... | arxiv:1702.00028 |
our objective is to discover and localize monotonic temporal changes in a sequence of images. to achieve this, we exploit a simple proxy task of ordering a shuffled image sequence, with ` time ' serving as a supervisory signal, since only changes that are monotonic with time can give rise to the correct ordering. we al... | arxiv:2404.16828 |
we present a technique for recovering a vector field and a symmetric $ 2 $ - tensor field, both real - valued and compactly supported in some strictly convex bounded domain with smooth boundary in the euclidean plane, from the sum of their attenuated moment ray transforms. in addition, we provide a stability estimate f... | arxiv:2505.02028 |
we study the dynamics of the gaudin magnet ( " central - spin model " ) using machine - learning methods. this model is of practical importance, e. g., for studying non - markovian decoherence dynamics of a central spin interacting with a large bath of environmental spins and for studies of nonequilibrium superconducti... | arxiv:2307.03310 |
the quenched kardar - parisi - zhang ( qkpz ) equation with negative non - linear term shows a first order pinning - depinning ( pd ) transition as the driving force $ f $ is varied. we study the substrate - tilt dependence of the dynamic transition properties in 1 + 1 dimensions. at the pd transition, the pinned surfa... | arxiv:cond-mat/9807194 |
we investigate the evolution of angular momentum in sph simulations of galaxy formation, paying particular attention to artificial numerical effects. we find that a cold gas disc forming in an ambient hot gas halo receives a strong hydrodynamic torque from the hot gas. by splitting the hydrodynamic force into artificia... | arxiv:astro-ph/0306568 |
we define the anderson hamiltonian h on a two - dimensional manifold using high order paracontrolled calculus. it is a self - adjoint operator with pure point spectrum. we get lower and upper bounds on its eigenvalues which imply an almost sure weyl - type law for h. | arxiv:2009.03549 |
in this paper, a statistically optimal solution to the perspective - n - point ( pnp ) problem is presented. many solutions to the pnp problem are geometrically optimal, but do not consider the uncertainties of the observations. in addition, it would be desirable to have an internal estimation of the accuracy of the es... | arxiv:1607.08112 |
how to find " best rational approximations " of maximal commutative subgroups of gl ( n, r )? in this paper we pose and make first steps in the study of this problem. it contains both classical problems of diophantine and simultaneous approximations as a particular subcases but in general is much wider. we prove estima... | arxiv:0910.3482 |
we consider the problem of identifying the admittance matrix of a three - phase radial network from voltage and current measurements at a subset of nodes. these measurements are used to estimate a virtual network represented by the kron reduction ( schur complement ) of the full admittance matrix. we focus on recoverin... | arxiv:2403.17391 |
in the context of teleparallel equivalent to general relativity, we study energy and its relevant quantities for some well - known black hole solutions. for this purpose, we use the hamiltonian approach which gives reasonable and interesting results. we find that our results of energy exactly coincide with several pres... | arxiv:1005.5203 |
context. gamma - ray burst ( grb ) afterglows originate from the interaction between the relativistic ejecta and the surrounding medium. consequently, their properties depend on several aspects : radiation mechanisms, relativistic shock micro - physics, circumburst environment, and the structure and geometry of the rel... | arxiv:2111.00359 |
the method for approximation of planar curve by circular arcs with length preservation, proposed by i. kh. sabitov and a. v. slovesnov, is analyzed. we extend the applicability of the method, and consider some corollaries, not related to the approximation problem. inequalities for the length of a convex spiral arc with... | arxiv:1604.07303 |
dictionary learning is the problem of estimating the collection of atomic elements that provide a sparse representation of measured / collected signals or data. this paper finds fundamental limits on the sample complexity of estimating dictionaries for tensor data by proving a lower bound on the minimax risk. this lowe... | arxiv:1605.05284 |
we present a practical approach to capturing ear - to - ear face models comprising both 3d meshes and intrinsic textures ( i. e. diffuse and specular albedo ). our approach is a hybrid of geometric and photometric methods and requires no geometric calibration. photometric measurements made in a lightstage are used to e... | arxiv:1609.02368 |
we consider nanoflakes of van der waals ferrielectric cuinp $ _ 2 $ s $ _ 6 $ covered by an ionic surface charge and reveal the appearance of polar states with relatively high polarization ~ 5 microc / cm $ ^ 2 $ and stored free charge ~ 10 microc / cm $ % 2 $, which can mimic " mid - gap " states associated with a sur... | arxiv:2405.14368 |
we give ground - state representation for the fractional laplacian with dirichlet condition on the half - line | arxiv:2206.05157 |
we investigated the bound state problem of the s wave charged $ d _ 1 \ bar { d } ^ * $ ( $ d _ 1 ' \ bar { d } ^ * $ ) system in a chiral quark model by solving the resonating group method equation. our preliminary study does not favor the molecular assumption of $ z ^ + ( 4430 ) $. on the contrary, if $ z ^ + ( 4430 ... | arxiv:0908.1734 |
graph matching finds the correspondence of nodes across two correlated graphs and lies at the core of many applications. when graph side information is not available, the node correspondence is estimated on the sole basis of network topologies. in this paper, we propose a novel criterion to measure the graph matching a... | arxiv:2202.02797 |
we present the design, manufacturing, and testing of a 37 - element array of corrugated feedhorns for cosmic microwave background ( cmb ) measurements between $ 140 $ and $ 170 $ ghz. the array was designed to be coupled to kinetic inductance detector arrays, either directly ( for total power measurements ) or through ... | arxiv:2006.14889 |
the eye lens is the most characteristic example of mammalian tissues exhibiting complex colloidal behaviour. in this paper we briefly describe how dynamics in colloidal suspensions can help addressing selected aspects of lens cataract which is ultimately related to the protein self - assembly under pathological conditi... | arxiv:0812.3898 |
we carried out a search for unknown dwarf novae in a public data release of the zwicky transient facility survey and suspected that the object ztf18abdlzhd is a su uma - type star. performed multicolor ccd observations permit us to follow its fading from an outburst in august and an entire superoutburst in october 2020... | arxiv:2103.03042 |
a host of dark energy models and non - standard cosmologies predict an enhanced hubble rate in the early universe : perfectly viable models, which satisfy big bang nucleosynthesis ( bbn ), cosmic microwave background and general relativity tests, may nevertheless lead to enhancements of the hubble rate up to many order... | arxiv:hep-ph/0605287 |
we construct and prove a diagrammatic version of the duflo isomorphism between the invariant subalgebra of the symmetric algebra of a lie algebra and the center of the universal enveloping algebra. this version implies the original for metrized lie algebras ( lie algebras with an invariant non - degenerate bilinear for... | arxiv:math/0006083 |
let $ x $ be a space of homogeneous type and let $ l $ be a sectorial operator with bounded holomorphic functional calculus on $ l ^ 2 ( x ) $. we assume that the semigroup $ \ { e ^ { - tl } \ } _ { t > 0 } $ satisfies davies - gaffney estimates. associated to $ l $ are certain approximations of the identity. we call ... | arxiv:1107.4347 |
full - duplex ( fd ) communication is optimistically promoted to double the spectral efficiency if sufficient self - interference cancellation ( sic ) is achieved. however, this is not true when deploying fd - communication in a large - scale setup due to the induced mutual interference. therefore, a large - scale stud... | arxiv:1608.06183 |
magnetic and magnetoelectric excitations in the multiferroic tbmno _ 3 have been investigated at terahertz frequencies. using different experimental geometries we can clearly separate the electro - active excitations ( electromagnons ) from the magneto - active modes, i. e. antiferromagnetic resonances ( afmr ). two af... | arxiv:0902.4382 |
using the average action defined with a continuum analog of the block spin transformation, we show the presence of gauge symmetry along the wilsonian renormalization group flow. as a reflection of the gauge symmetry, the average action satisfies the quantum master equation ( qme ). we show that the quantum part of the ... | arxiv:hep-th/0006180 |
in software development, due to the lack of knowledge or information, time pressure, complex context, and many other factors, various uncertainties emerge during the development process, leading to assumptions scattered in projects. being unaware of certain assumptions can result in critical problems ( e. g., system vu... | arxiv:2303.06822 |
we report the observation of an acute sensitivity of the anisotropic longitudinal resistivity of two - dimensional electron systems in half - filled high landau levels to the magnitude and orientation of an in - plane magnetic field. in the third and higher landau levels, at filling fractions nu = 9 / 2, 11 / 2, etc., ... | arxiv:cond-mat/9903196 |
we study the thermal and electric transport of a fluid of interacting dirac fermions as they arise in single - layer graphene. we include coulomb interactions, a dilute density of charged impurities and the presence of a magnetic field to describe both the static and the low frequency response as a function of temperat... | arxiv:0810.3657 |
let $ f : a \ rightarrow b $ be a ring homomorphism and let $ j $ be an ideal of $ b $. in this paper, we study the amalgamation of $ a $ with $ b $ along $ j $ with respect to $ f $, a construction that provides a general frame for studying the amalgamated duplication of a ring along an ideal, introduced by d ' anna a... | arxiv:1312.3804 |
we find that the proof in the recent paper $ \ textsuperscript { \ cite { 14 } } $ can not justify the authors ' conclusion. we provide a real proof that any state will eventually evolves to the woltjer - taylor state exponentially. however, this kind of evolution is is mainly due to joule heat, which also makes the ma... | arxiv:1212.5757 |
congestion games offer a primary model in the study of pure nash equilibria in non - cooperative games, and a number of generalized models have been proposed in the literature. one line of generalization includes weighted congestion games, in which the cost of a resource is a function of the total weight of the players... | arxiv:2401.03861 |
in this paper we compare the numbers of new top 2 % researchers from china and usa annually since 1980. we find that the log ratio of the numbers decreases almost linearly over time. as early as 2009, the total number of new top 2 % researchers across all subfields from china exceeds that of usa. in particular, such tr... | arxiv:2111.09473 |
we present plateau de bure interferometer observations of far infra - red emission lines in bri 0952 - 0115, a lensed quasar at z = 4. 4 powered by a super - massive black hole ( m _ bh = 2x10 ^ 9 m _ sun ). in this source, the resolved map of the [ cii ] emission at 158 micron allows us to reveal the presence of a com... | arxiv:1211.0695 |
the exclusive reaction $ \ gamma p \ to p \ pi ^ + \ pi ^ - $ was studied in the photon energy range 3. 0 - 3. 8 gev and momentum transfer range $ 0. 4 < - t < 1. 0 $ gev $ ^ 2 $. data were collected with the clas detector at the thomas jefferson national accelerator facility. in this kinematic range the integrated lum... | arxiv:0907.1021 |
higher - order probabilistic programming languages allow programmers to write sophisticated models in machine learning and statistics in a succinct and structured way, but step outside the standard measure - theoretic formalization of probability theory. programs may use both higher - order functions and continuous dis... | arxiv:1701.02547 |
to unravel the driving patterns of networks, the most popular models rely on community detection algorithms. however, these approaches are generally unable to reproduce the structural features of the network. therefore, attempts are always made to develop models that incorporate these network properties beside the comm... | arxiv:2112.10436 |
stellar ages are an important parameter to study the chemical evolution of the galaxy. in recent years, several studies have established the existence of a relationship between chemical clocks and stellar ages. the [ y / mg ] clock is a promising technique, but there are still several open questions, such as its validi... | arxiv:2407.07283 |
the prescribed ricci curvature problem in the context of g - invariant metrics on a homogeneous space m = g / k is studied. we focus on the metrics at which the ricci curvature map is, locally, as injective and surjective as it can be. our main result is that such property is generic in the compact case. our main tool ... | arxiv:2010.03643 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.