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the possibility of tailoring the guidance properties of optical fibers along the same direction as the evolution of the optical field allows to explore new directions in nonlinear fiber optics. the new degree of freedom offered by axially - varying optical fibers enables to revisit well - established nonlinear phenomen... | arxiv:1710.04836 |
adversarial attacks often involve random perturbations of the inputs drawn from uniform or gaussian distributions, e. g., to initialize optimization - based white - box attacks or generate update directions in black - box attacks. these simple perturbations, however, could be sub - optimal as they are agnostic to the m... | arxiv:2003.06878 |
soap bubbles are simple, yet very unique and marvelous objects. they exhibit a number of interesting properties such as beautiful interference colors and the formation of minimal surfaces. various optical phenomena have been studied in soap films and bubbles, but so far they were not employed as optical cavities. here ... | arxiv:2306.14676 |
thermoreversible hydrogels are commonly prepared by cooling down to ambient temperature, aqueous polymer solutions first brought to a boil. the incubation time of the polymer solution at such a high temperature is traditionally kept to a minimum to minimize its impact on the subsequent gelation. here we study the effec... | arxiv:1603.00778 |
to validate the second - by - second dynamics of turbines in field experiments, it is necessary to accurately reconstruct the winds going into the turbine. current time - resolved inflow reconstruction techniques estimate wind behavior in unobserved regions using relatively simple spectral - based models of the atmosph... | arxiv:2410.14024 |
we present the yahoo flickr creative commons 100 million dataset ( yfcc100m ), the largest public multimedia collection that has ever been released. the dataset contains a total of 100 million media objects, of which approximately 99. 2 million are photos and 0. 8 million are videos, all of which carry a creative commo... | arxiv:1503.01817 |
stewart shapiro, 2000. thinking about mathematics : the philosophy of mathematics. oxford university press. = = external links = = stanford encyclopedia of philosophy : " abstract objects " — by gideon rosen. wells, charles. " mathematical objects ". amof : the amazing mathematical object factory mathematical object ex... | https://en.wikipedia.org/wiki/Mathematical_object |
the extreme ultraviolet imaging spectrometer ( eis ) on board hinode is the first solar telescope to obtain wide slit spectral images that can be used for detecting doppler flows in transition region and coronal lines on the sun and to relate them to their surrounding small scale dynamics. we select eis lines covering ... | arxiv:0807.1185 |
differential cross sections of the exclusive process $ e p \ to e ^ \ prime \ pi ^ + n $ were measured with good precision in the range of the photon virtuality $ q ^ 2 = 1. 8 - 4. 5 $ gev $ ^ 2 $, and the invariant mass range of the $ \ pi ^ + n $ final state w = 1. 6 - 2. 0 gev using the cebaf large acceptance spectr... | arxiv:1412.0274 |
we study the growth of the rank of subgroups of finite index in residually finite groups, by relating it to the notion of cost. as a by - product, we show that the ` rank vs. heegaard genus ' conjecture on hyperbolic 3 - manifolds is incompatible with the ` fixed price problem ' in topological dynamics. | arxiv:math/0701361 |
a perfect code $ c $ in a graph $ \ gamma $ is an independent set of vertices of $ \ gamma $ such that every vertex outside of $ c $ is adjacent to a unique vertex in $ c $, and a total perfect code $ c $ in $ \ gamma $ is a set of vertices of $ \ gamma $ such that every vertex of $ \ gamma $ is adjacent to a unique ve... | arxiv:2210.03336 |
i - balls / oscillons are long - lived and spatially localized solutions of real scalar fields. they are produced in various contexts of the early universe in, such as, the inflaton evolution and the axion evolution. however, their decay process has long been unclear. in this paper, we derive an analytic formula of the... | arxiv:1901.06130 |
we describe a reproduction procedure which, given a solution of the $ \ mathfrak { gl } _ { m | n } $ gaudin bethe ansatz equation associated to a tensor product of polynomial modules, produces a family $ p $ of other solutions called the population. to a population we associate a rational pseudodifferential operator $... | arxiv:1809.01279 |
avalanche photo detection is commonly used in applications which require single photon sensitivity. we examine the limits of using avalanche photo diodes ( apd ) for characterising photon statistics at high data rates. to identify the regime of linear apd operation we employ a ps - pulsed diode laser with variable repe... | arxiv:0709.3053 |
the paper relates two variants of semantic models for natural language, logical functional models and compositional distributional vector space models, by transferring the logic and reasoning from the logical to the distributional models. the geometrical operations of quantum logic are reformulated as algebraic operati... | arxiv:1412.8527 |
as a continuation of our previous work \ cite { kv2 } the aim of the recent paper is to investigate the solutions of special inhomogeneous linear functional equations by using spectral synthesis in translation invariant closed linear subspaces of additive / multiadditive functions containing the restrictions of the sol... | arxiv:1704.04755 |
we generalize a previous construction of a fermiophobic model to the case of more than one extra $ w $ and $ z $ gauge bosons. we focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. one of these configurations allows for the existence of a set of rela... | arxiv:hep-ph/9803278 |
let $ v _ { l } $ be the vertex algebra associated to a non - degenerate even lattice $ l $, $ \ theta $ the automorphism of $ v _ { l } $ induced from the $ - 1 $ symmetry of $ l $, and $ v _ { l } ^ { + } $ the fixed point subalgebra of $ v _ { l } $ under the action of $ \ theta $. we classify the irreducible weak $... | arxiv:1910.07126 |
we study finiteness conditions on large tilting modules over arbitrary rings. we then turn to a hereditary artin algebra r and apply our results to the ( infinite dimensional ) tilting module l that generates all modules without preprojective direct summands. we show that the behaviour of l over its endomorphism ring d... | arxiv:0804.0815 |
the current status of experiments with snd detector at vepp - 2m e ^ + e ^ - collider in the energy range 2e _ 0 = 400 - 1400 mev and recent results of data analysis for $ \ phi $, $ \ omega $ and $ \ rho $ decays and e ^ + e ^ - annihilation into hadrons are presented. | arxiv:hep-ex/9910057 |
star configurations are certain unions of linear subspaces of projective space that have been studied extensively. we develop a framework for studying a substantial generalization, which we call matroid configurations, whose ideals generalize stanley - reisner ideals of matroids. such a matroid configuration is a union... | arxiv:1507.00380 |
css - t codes were recently introduced as quantum error - correcting codes that respect a transversal gate. a css - t code depends on a css - t pair, which is a pair of binary codes $ ( c _ 1, c _ 2 ) $ such that $ c _ 1 $ contains $ c _ 2 $, $ c _ 2 $ is even, and the shortening of the dual of $ c _ 1 $ with respect t... | arxiv:2312.17518 |
we discuss hilbert - kunz function from when it was originally defined to its recent developments. a brief history of hilbert - kunz theory is first recounted. then we review several techniques involved in the study of hilbert - kunz functions by presenting some illustrative proofs without going into details of the tec... | arxiv:2106.14053 |
fault tree analysis ( fta ) is a prominent technique in industrial and scientific risk assessment. repairable fault trees ( rft ) enhance the classical fault tree ( ft ) model by introducing the possibility to describe complex dependent repairs of system components. usual frameworks for analyzing fts such as bdd, sbdd,... | arxiv:1910.10507 |
in the presence of independent generations of leptons, i show that the same type of ambiguity in the mass spectrum arises as was discussed in ref. [ 1 ] for neutral kaons. it results from the freedom to add to their majorana mass matrix, usually taken to be symmetric, an antisymmetric term which vanishes as soon as fer... | arxiv:hep-ph/0207040 |
we have unified quantum and classical computing in open quantum systems called qacp which is a quantum generalization of process algebra acp. but, an axiomatization for quantum and classical processes with an assumption of closed quantum systems is still missing. for closed quantum systems, unitary operator, quantum me... | arxiv:1610.02500 |
methods based on supervised learning using annotations in an end - to - end fashion have been the state - of - the - art for classification problems. however, they may be limited in their generalization capability, especially in the low data regime. in this study, we address this issue using supervised contrastive lear... | arxiv:2210.16192 |
mathematical logic and to minimize the number of primitive notions, axioms, and inference rules ; to precisely express mathematical propositions in symbolic logic using the most convenient notation that precise expression allows ; to solve the paradoxes that plagued logic and set theory at the turn of the 20th century,... | https://en.wikipedia.org/wiki/Mathematicism |
new experimental results on the spin dependent structure functions g _ 1 and g _ 2 which are determined from deep - inelastic scattering experiments at cern, slac and desy are reported. these results are used to evaluate the bjorken sum rule and the singlet axial charge a _ 0. results are discussed in the framework of ... | arxiv:hep-ph/9612352 |
motivated by indirect observational evidence for strongly magnetized accretion discs around black holes, and the novel theoretical properties of such solutions, we investigate how a strong magnetization state can develop and persist. to this end, we perform local simulations of accretion discs with an initially purely ... | arxiv:1602.04810 |
we revisit the problem of constructing type iia orientifolds on t ^ 6 / ( z2 x z2 ) which admit ( non ) - factorisable lattices. more concretely, we consider a ( z2 x z2 ' ) orientifold with torsion, where d6 - branes wrap rigid 3 - cycles. we derive the model building rules and consistency conditions in the case where... | arxiv:0806.2328 |
in math. gr / 0510298, we showed that every f - quasigroup is linear over a special kind of moufang loop called an nk - loop. here we extend this relationship by showing an equivalence between the equational class of ( pointed ) f - quasigroups and the equational class corresponding to a certain notion of generalized m... | arxiv:math/0512244 |
in this paper, we discuss the fixed point property for an infinite family of order - preserving mappings which satisfy the lipschitzian condition on comparable pairs. the underlying framework of our main results is a metric space of any global upper curvature bound $ \ kappa \ in \ mathbb { r } $, i. e., a $ \ rm { cat... | arxiv:1811.11585 |
a comprehensive search for variable and transient radio sources has been conducted using ~ 55, 000 snapshot images of the first survey. we present an analysis leading to the discovery of 1, 627 variable and transient objects down to mjy levels over a wide range of timescales ( few minutes to years ). variations observe... | arxiv:1107.5901 |
using the sign expansion of the surreal numbers, we give a possible notion of convergence for surreal sequences. | arxiv:1210.5675 |
in this paper we introduce new methods for convex optimization problems with inexact stochastic oracle. first method is an extension of the intermediate gradient method proposed by devolder, glineur and nesterov for problems with inexact oracle. our new method can be applied to the problems with composite structure, st... | arxiv:1411.2876 |
the words of a language reflect the structure of the human mind, allowing us to transmit thoughts between individuals. however, language can represent only a subset of our rich and detailed cognitive architecture. here, we ask what kinds of common knowledge ( semantic memory ) are captured by word meanings ( lexical se... | arxiv:1802.01241 |
as robots aspire for long - term autonomous operations in complex dynamic environments, the ability to reliably take mission - critical decisions in ambiguous situations becomes critical. this motivates the need to build systems that have situational awareness to assess how qualified they are at that moment to make a d... | arxiv:1607.08665 |
the united states has long pursued regulations that aim to reduce fossil fuel use. however, while potential emission reduction motivates the introduction and enforcement of these regulations, realization of this potential does not obfuscate the need for prudent economic policy. scrutinizing nearly two decades of climat... | arxiv:2503.11406 |
in this paper, we tackle the task of establishing dense visual correspondences between images containing objects of the same category. this is a challenging task due to large intra - class variations and a lack of dense pixel level annotations. we propose a convolutional neural network architecture, called adaptive nei... | arxiv:2003.12059 |
in the field of spaceflight mechanics and astrodynamics, determining eclipse regions is a frequent and critical challenge. this determination impacts various factors, including the acceleration induced by solar radiation pressure, the spacecraft power input, and its thermal state all of which must be accounted for in v... | arxiv:2408.05387 |
a rainbow - ladder truncation of qcd ' s dyson - schwinger equations, constrained by existing applications to hadron physics, is employed to compute the valence - quark parton distribution functions of the pion and kaon. comparison is made to pi - n drell - yan data for the pion ' s u - quark distribution and to drell ... | arxiv:1102.2448 |
we define twisted alexander polynomials of a complex hypersurface with arbitrary singularities. these generalize the classical alexander polynomials of high dimensional hypersurfaces and the twisted alexander polynomial of plane curves. we recover the classical torsionness and divisibility results, which say that, unde... | arxiv:1501.06065 |
we study holomorphic foliations of codimension $ k \ geq 1 $ on a complex manifold $ x $ of dimension $ n + k $ from the point of view of the exceptional minimal set conjecture. for $ n \ geq 2 $ we show in particular that if the holomorphic normal bundle $ n _ { \ mathcal { f } } $ is griffiths positive, then the foli... | arxiv:1910.01930 |
we consider a networked control system ( ncs ) consisting of two plants, a global plant and a local plant, and two controllers, a global controller and a local controller. the global ( resp. local ) plant follows discrete - time stochastically switched linear dynamics with a continuous global ( resp. local ) state and ... | arxiv:1802.00538 |
we analyze site percolation on directed and undirected graphs with site - dependent open - site probabilities. we construct upper bounds on cluster susceptibilities, vertex connectivity functions, and the expected number of simple open cycles through a chosen arc ; separate bounds are given on finite and infinite ( di ... | arxiv:1505.03963 |
we compare different polyakov loop actions yielding effective descriptions of finite - temperature su ( 2 ) yang - mills theory on the lattice. the actions are motivated by a simultaneous strong - coupling and character expansion obeying center symmetry and include both ising and ginzburg - landau type models. to keep ... | arxiv:hep-lat/0502013 |
twitter is a popular microblogging platform. when users send out messages, other users have the ability to forward these messages to their own subgraph. most research focuses on increasing retweetability from a node ' s perspective. here, we center on improving message style to increase the chance of a message being fo... | arxiv:1401.4857 |
infrared studies have revealed debris likely related to planet formation in orbit around ~ 30 % of youthful, intermediate mass, main sequence stars. we present evidence, based on atmospheric pollution by various elements heavier than helium, that a comparable fraction of the white dwarf descendants of such main sequenc... | arxiv:1007.2252 |
we show that cosmic rays in external galaxies, groups and clusters rich in gas, with an average flux similar to that observed in the milky way, could have produced the observed extragalactic diffuse gamma radiation. | arxiv:astro-ph/9501079 |
in this paper, we present a discrete - time networked seir model using population flow, its derivation, and assumptions under which this model is well defined. we identify properties of the system ' s equilibria, namely the healthy states. we show that the set of healthy states is asymptotically stable, and that the va... | arxiv:2104.07600 |
we consider here the spin independent neutralino - proton cross section for a variety of sugra and d - brane models with r - parity invariance. the minimum cross section generally is > ~ 1 \ times 10 ^ { - ( 9 - 10 ) } pb ( and hence accessible to future detectors ) except for special regions of parameter space where i... | arxiv:hep-ph/0008320 |
we report about the current status of our ongoing study of the chiral limit of two - flavor qcd at finite temperature with twisted mass quarks. we estimate the pseudo - critical temperature $ t _ c $ for three values of the pion mass in the range of $ m _ \ mathrm { ps } \ simeq 300 $ and $ 500 \ mathrm { mev } $ and d... | arxiv:1212.0982 |
in this paper we express the minkowski dimension of spiral trajectories near hyperbolic saddles and semi - hyperbolic singularities in terms of the minkowski dimension of intersections of such spirals with transversals near these singularities. we apply these results to hyperbolic saddle - loops and hyperbolic $ 2 $ - ... | arxiv:2306.00116 |
in this paper, we focus on a novel knowledge reuse scenario where the knowledge in the source schema needs to be translated to a semantically heterogeneous target schema. we refer to this task as " knowledge translation " ( kt ). unlike data translation and transfer learning, kt does not require any data from the sourc... | arxiv:1507.03181 |
the flow field of a bluff body, a circular disk, that moves horizontally in a stratified environment is studied using large eddy simulations ( les ). five levels of stratification ( body froude numbers of fr = 0. 5, 1, 1. 5, 2 and 5 ) are simulated at reynolds number of re = 5000 and prandtl number of pr = 1. a higher ... | arxiv:2408.14683 |
smoothing is a technique for estimating the state of an imperfectly monitored open system by combining both prior and posterior measurement information. in the quantum regime, current approaches to smoothing either give unphysical outcomes, due to the non - commutativity of the measurements at different times, or requi... | arxiv:2501.15986 |
the preferential formation of one solid over the other, as it precipitates out from the melt at specific temperatures, is often explained by invoking a competition between thermodynamic and kinetic control. a quantitative theory, however, could not be developed because of the lack of accurate values of relevant surface... | arxiv:1809.00299 |
in recommender systems, cold - start issues are situations where no previous events, e. g. ratings, are known for certain users or items. in this paper, we focus on the item cold - start problem. both content information ( e. g. item attributes ) and initial user ratings are valuable for seizing users ' preferences on ... | arxiv:1805.09023 |
recent works on crowd counting mainly leverage cnns to count by regressing density maps, and have achieved great progress. in the density map, each person is represented by a gaussian blob, and the final count is obtained from the integration of the whole map. however, it is difficult to accurately predict the density ... | arxiv:1912.09632 |
large language models ( llms ) have demonstrated impressive capabilities across natural language processing tasks. however, their application to specialized domains such as medicine and biology requires further optimization to ensure factual accuracy, reliability, and contextual depth. we introduce medbiolm, a domain -... | arxiv:2502.03004 |
according to brønsted – lowry acid – base theory, acids are substances that donate a positive hydrogen ion to another substance in a chemical reaction ; by extension, a base is the substance which receives that hydrogen ion. a third common theory is lewis acid – base theory, which is based on the formation of new chemi... | https://en.wikipedia.org/wiki/Chemistry |
we have used sensitive low frequency array ( lofar ) observations of psr b0809 + 74 at 15 - - 62 mhz to study the anomalously intensive pulses, first reported by ulyanov et al. ( 2006 ) at 18 - - 30mhz. similarly to ulyanov et al., we found that the spectra of strong pulses consist of distinct bright patches. moreover,... | arxiv:1711.07346 |
we construct the screening currents of the quantum superalgebra $ u _ q ( \ hat { sl } ( n | 1 ) ) $ for an arbitrary level $ k \ neq - n + 1 $. we show that these screening currents commute with the superalgebra modulo total difference. we propose bosonizations of the vertex operators by using the screening currents. ... | arxiv:1201.4223 |
the tolman - oppenheimer - volkoff ( tov ) equation admits singular solutions in addition to regular ones. here, we prove the following theorem. for any equation of state that ( i ) is obtained from an entropy function, ( ii ) has positive pressure and ( iii ) satisfies the dominant energy condition, the tov equation c... | arxiv:2010.02279 |
the s - wave scattering length for elastic collisions between 87rb atoms in the state | f, m _ f > = | 1, 1 > is measured in the vicinity of a feshbach resonance near 1007 g. experimentally, the scattering length is determined from the mean - field driven expansion of a bose - einstein condensate in a homogeneous magne... | arxiv:cond-mat/0305180 |
identifying important nodes for disease spreading is a central topic in network epidemiology. we investigate how well the position of a node, characterized by standard network measures, can predict its epidemiological importance in any graph of a given number of nodes. this is in contrast to other studies that deal wit... | arxiv:1909.10021 |
we define an equivariant $ k _ 0 $ - theory for \ textit { yetter - drinfeld } algebras over a hopf algebra with an invertible antipode. we then show that this definition can be generalized to all hopf - module algebras. we show that there exists a pairing, generalizing connes ' pairing, between this theory and a suita... | arxiv:math/0009236 |
we compute the pair entanglement between two interacting bosons in a two dimensional ( 2d ) isotropic harmonic trap. the interaction potential is modeled by a 2d regularized pseudo - potential. by analytically decomposing the wave function into the single particle basis, we show the dependency of the pair entanglement ... | arxiv:0910.1765 |
in this paper, we study the stability of the conical k \ " ahler - ricci flows on fano manifolds. that is, if there exists a conical k \ " ahler - einstein metric with cone angle $ 2 \ pi \ beta $ along the divisor, then for any $ \ beta ' $ sufficiently close to $ \ beta $, the corresponding conical k \ " ahler - ricc... | arxiv:1903.07528 |
a predictive model for nanoparticle nucleation has not yet been successfully achieved. classical nucleation theory fails because the atomistic nature of the seed has to be considered since geometrical structure as well as stoichiometry do not always match the bulk values. we present a fully microscopic approach based o... | arxiv:1707.08434 |
the widespread application of artificial intelligence ( ai ) in various tasks, along with frequent reports of conflicts or violations involving ai, has sparked societal concerns about interactions with ai systems. based on wrightsman ' s philosophies of human nature scale ( phns ), a scale empirically validated over de... | arxiv:2504.02304 |
in [ m. zych et al., nat. commun. 2, 505 ( 2011 ) ], the authors predicted that the interferometric visibility is affected by a gravitational field in way that cannot be explained without the general relativistic notion of proper time. in this work, we take a different route and start deriving the same effect using the... | arxiv:2101.06320 |
in this paper we estimate a bayesian vector autoregressive model with factor stochastic volatility in the error term to assess the effects of an uncertainty shock in the euro area. this allows us to treat macroeconomic uncertainty as a latent quantity during estimation. only a limited number of contributions to the lit... | arxiv:1801.02925 |
we present high resolution simulations of a multiple merger of three disk galaxies including the evolution of magnetic fields performed with the n - body / sph code gadget. for the first time, we embed the galaxies in a magnetized, low - density medium, thus modeling an ambient igm. the simulations include radiative co... | arxiv:1011.5735 |
achieving the no - regret property for reinforcement learning ( rl ) problems in continuous state and action - space environments is one of the major open problems in the field. existing solutions either work under very specific assumptions or achieve bounds that are vacuous in some regimes. furthermore, many structura... | arxiv:2410.24071 |
different descriptions used to model a point - defect in an elastic continuum are reviewed. the emphasis is put on the elastic dipole approximation, which is shown to be equivalent to the infinitesimal eshelby inclusion and to the infinitesimal dislocation loop. knowing this elastic dipole, a second rank tensor fully c... | arxiv:1802.04062 |
we present examples of color hopf algebras, i. e. hopf algebras in color categories ( braided tensor categories with braiding induced by a bicharacter on an abelian group ), related with quantum doubles of pointed hopf algebras. we also discuss semisimple color hopf algebras. | arxiv:1212.0514 |
it shown that any coideal subalgebra of a finite dimensional hopf algebra is a cyclic module over the dual hopf algebra. using this we describe all coideal subalgebras of a cocentral abelian extension of hopf algebras extending some results from [ 4 ]. | arxiv:1203.5491 |
we present a preliminary laboratory test of a setup designed to measure hanbury brown and twiss - type intensity correlations from a chaotic light source using five spectral channels simultaneously. after averaging the zero - delay correlation peaks from all channels, we obtain an improvement of the signalto - noise ra... | arxiv:2411.08417 |
in this paper we generalize cellular algebras by allowing different partial orderings relative to fixed idempotents. for these relative cellular algebras we classify and construct simple modules, and we obtain other characterizations in analogy to cellular algebras. we also give several examples of algebras that are re... | arxiv:1710.02851 |
this paper proposes a new mathematical approach to characterize native protein structures based on the discrete differential geometry of tetrahedron tiles. in the approach, local structure of proteins is classified into finite types according to shape. and one would obtain a number sequence representation of protein st... | arxiv:q-bio/0610017 |
large language models ( llms ) often struggle with complex logical reasoning due to logical inconsistencies and the inherent difficulty of such reasoning. we use lean, a theorem proving framework, to address these challenges. by formalizing logical reasoning problems into theorems within lean, we can solve them by prov... | arxiv:2403.13312 |
in this paper, we prove that hitting probability of minkowski sum of fractal percolations can be characterized by capacity. then we extend this result to minkowski sum of general random sets in $ \ mathbb z ^ d $, including ranges of random walks and critical branching random walks, whose hitting probabilities are desc... | arxiv:2412.16415 |
a common way of stating the non - cloning theorem - - one of distinguishing characteristics of quantum theory - - is that one cannot make a copy of an arbitrary unknown quantum state. even though this theorem is an important part of the ongoing discussion of the nature of a quantum state, the role of the theorem in the... | arxiv:1905.06766 |
we show that the space charge dynamics of high intensity beams in the plane perpendicular to the magnetic field in cyclotrons is described by the two - dimensional euler equations for an incompressible fluid. this analogy with fluid dynamics gives a unified and intuitive framework to explain the beam spiraling and beam... | arxiv:1604.04323 |
we present a multi - scale spiking network model of all vision - related areas of macaque cortex that represents each area by a full - scale microcircuit with area - specific architecture. the layer - and population - resolved network connectivity integrates axonal tracing data from the cocomac database with recent qua... | arxiv:1511.09364 |
using quantum monte carlo simulations, we study a series of models of fermions coupled to quantum ising spins on a square lattice with $ n $ flavors of fermions per site for $ n = 1, 2 $ and $ 3 $. the models have an extensive number of conserved quantities but are not integrable, and have rather rich phase diagrams co... | arxiv:1607.03912 |
we analyze the x - ray spectra and their timing properties of the compact x - ray binary 4u ~ 1820 - 30. we establish a number of spectral transitions in this source seen with bepposax and rxte. during the rxte observations ( 1996 - - 2009 ), the source were approximately 75 % of its time in the soft state making the l... | arxiv:1303.4323 |
we describe how to apply the transport method to compute inflationary observables in a broad range of multiple - field models. the method is efficient and encompasses scenarios with curved field - space metrics, violations of slow - roll conditions and turns of the trajectory in field space. it can be used for an arbit... | arxiv:1502.03125 |
we investigate nonperturbatively the effect of a magnetic dopant impurity on the edge transport of a quantum spin hall ( qsh ) insulator. we show that for a strongly coupled magnetic dopant located near the edge of a system, a pair of transmission anti - resonances appear. when the chemical potential is on resonance, i... | arxiv:1609.06227 |
recently, bocklandt proved a conjecture by van den bergh in its graded version, stating that a graded quiver algebra ( with relations ) which is calabi - yau of dimension 3 is defined from a homogeneous potential w. in this paper, we prove that if we add to w any potential of smaller degree, we get a poincare - birkhof... | arxiv:math/0610112 |
when a binary fluid demixes under a slow temperature ramp, nucleation, coarsening and sedimentation of droplets lead to an oscillatory evolution of the phase separating system. the advection of the sedimenting droplets is found to be chaotic. the flow is driven by density differences between the two phases. here, we sh... | arxiv:1107.1194 |
##phisms from x to x are precisely the elements of the monoid, the identity morphism of x is the identity of the monoid, and the categorical composition of morphisms is given by the monoid operation. several definitions and theorems about monoids may be generalized for categories. similarly any group can be seen as a c... | https://en.wikipedia.org/wiki/Category_(mathematics) |
the manufacture of solid oxide fuel cells ( sofcs ) involves fabrication of a multilayer ceramic structure, for which constrained sintering is a key processing step in many cases. defects are often observed in the sintered structure, but their formation during sintering is not well understood. in this work, various cer... | arxiv:1502.01878 |
in this paper, parallel interconnection of dc / dc converters is considered. for this topology of converters feeding a common load, it has been recently shown that dynamics related to voltage regulation can be completely separated from the current distribution without considering frequency separation arguments, which i... | arxiv:1912.07703 |
in this work, we present an analysis of sne number ratios in spiral galaxies with different morphological subtypes, luminosities, ssfr, and metallicities, to provide important information about the physical properties of the progenitor populations. | arxiv:1312.5896 |
in the present paper we consider multi - scalar extension of einstein - gauss - bonnet gravity. we focus on multi - scalar einstein - gauss - bonnet models whose target space is a three - dimensional maximally symmetric space, namely either $ \ mathbb { s } ^ 3 $, $ \ mathbb { h } ^ 3 $ or $ \ mathbb { r } ^ 3 $, and i... | arxiv:2006.11515 |
we calculate the change in the correlation gap of armchair carbon nanotubes with uniaxial elastic strain. we predict that such a stretching will enlarge the correlation gap for all carbon nanotubes by a change that could be as large as several mev per percent of applied strain, in contrast with pure band structure calc... | arxiv:cond-mat/0310282 |
in this paper we address the following question regarding the regularity of geodesics in the space of k \ " ahler potentials. given a geodesic which is highly regular, and has smooth boundary value, can we expect that it is actually smooth? we construct an example to show that the answer to the question is ` ` no ". | arxiv:1808.03498 |
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