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the valley transport properties of a superlattice of out - of - plane gaussians deformations are calculated using a green ' s function and a machine learning approach. our results show that periodicity significantly improves the valley filter capabilities of a single gaussian deformation, these manifest themselves in t... | arxiv:1908.04604 |
the ability to generate bipartite entanglement in quantum computing technologies is widely regarded as pivotal. however, the role of genuinely multipartite entanglement is much less understood than bipartite entanglement, particularly in the context of solving complicated optimization problems using quantum devices. it... | arxiv:2411.08119 |
we study the internal circulation within the cocoon carved out by the relativistic jet emanating from an agn within the ism of its host galaxy. firstly, we develop a model for the origin of the internal flow, noticing that a significant increase of large scale velocity circulation within the cocoon arises as significan... | arxiv:1002.4413 |
text style transfer is an important task in controllable language generation. supervised approaches have pushed performance improvement on style - oriented rewriting such as formality conversion. however, challenges remain due to the scarcity of large - scale parallel data in many domains. while unsupervised approaches... | arxiv:2205.09324 |
despite the remarkable abilities of large language models ( llms ) to answer questions, they often display a considerable level of overconfidence even when the question does not have a definitive answer. to avoid providing hallucinated answers to these unknown questions, existing studies typically investigate approache... | arxiv:2402.15062 |
large language models have become popular for their remarkable capabilities in human - oriented tasks and traditional natural language processing tasks. its efficient functioning is attributed to the attention mechanism in the transformer architecture, enabling it to concentrate on particular aspects of the input. llms... | arxiv:2306.02295 |
we examined several low - $ q ^ 2 $ elastic $ ep $ and $ ed $ scattering data sets using various models to extract the proton and deuteron rms radii and developed a comprehensive algorithm for estimating the systematic bias of each extracted radius. in each case, we chose the model and upper bound for $ q ^ 2 $ that mi... | arxiv:1804.09150 |
low - rank tensor approximation error bounds are proposed for the case of noisy input data that depend on low - rank representation type, rank and the dimensionality of the tensor. the bounds show that high - dimensional low - rank structured approximations provide superior noise - filtering properties compared to matr... | arxiv:2312.02088 |
in this paper we present the first deterministic polynomial time algorithm for determining the existence of a hamiltonian cycle and finding a hamiltonian cycle in general graphs. our algorithm can also solve the hamiltonian path problem in the traceable graphs. the space complexity of our algorithm is o ( n ^ 4 ). the ... | arxiv:2105.07608 |
semantic parsers map natural language utterances to meaning representations. the lack of a single standard for meaning representations led to the creation of a plethora of semantic parsing datasets. to unify different datasets and train a single model for them, we investigate the use of multi - task learning ( mtl ) ar... | arxiv:2106.04476 |
top quark decays before hadronization and its information transfer to final products. the top quark decays via the weak interaction, hence the azimuthal polarized decay rate is zero in the leading order of sm. therefore the study of top quark could be taken into consideration as useful tools to search for new physics. ... | arxiv:1804.07688 |
query evaluation on probabilistic databases is generally intractable ( # p - hard ). existing dichotomy results have identified which queries are tractable ( or safe ), and connected them to tractable lineages. in our previous work, using different tools, we showed that query evaluation is linear - time on probabilisti... | arxiv:1604.02761 |
the pseudogap state of high temperature superconductors is a profound mystery. it has tantalizing evidence of a number of broken symmetry states, not necessarily conventional charge and spin density waves. here we explore a class of more exotic density wave states characterized by topological properties observed in rec... | arxiv:1104.5053 |
the bremsstrahlung energy loss distribution of electrons propagating in matter is highly non gaussian. because the kalman filter relies solely on gaussian probability density functions, it might not be an optimal reconstruction algorithm for electron tracks. a gaussian - sum filter ( gsf ) algorithm for electron track ... | arxiv:physics/0306087 |
the incorporation of causal inference in mediation analysis has led to theoretical and methodological advancements - - effect definitions with causal interpretation, clarification of assumptions required for effect identification, and an expanding array of options for effect estimation. however, the literature on these... | arxiv:1904.08515 |
we study energetic, magnetic, and electronic properties of diluted substitutional mn - pairs on the reconstructed $ ( 001 ) $ gaas surfaces. the studies are based on first - principles calculations in the framework of the density functional theory. we demonstrate that the stability of the systems strongly depends on th... | arxiv:1603.09606 |
in $ r $ - neighbour bootstrap percolation, vertices ( sites ) of a graph $ g $ are infected, round - by - round, if they have $ r $ neighbours already infected. once infected, they remain infected. an initial set of infected sites is said to percolate if every site is eventually infected. we determine the maximal perc... | arxiv:1707.09214 |
we study the stability of mean - motion resonances ( mmr ) between two planets during their migration in a protoplanetary disk. we use an analytical model of resonances, and describe the effect of the disk by a migration timescale ( t _ { m, i } ) and an eccentricity damping timescale ( t _ { e, i } ) for each planet (... | arxiv:1506.03750 |
we prove that weak convergence within generalized gamma convolution ( ggc ) distributions implies convergence in the mean value. we use this fact to show the robustness of the expected utility maximizing optimal portfolio under exponential utility function when return vectors are modelled by hyperbolic distributions. | arxiv:2407.15105 |
this paper is concerned with the fading mimo - mac with multiple receive antennas at the base station ( bs ) and multiple transmit antennas at each mobile terminal ( mt ). two multiple - access techniques are considered for scheduling transmissions from each mt to the bs at the same frequency, which are space - divisio... | arxiv:0804.3259 |
a recently developed density functional method, within hohenberg - kohn - sham framework, is used for faithful description of atoms, molecules in cartesian coordinate grid, by using an lcao - mo ansatz. classical coulomb potential is obtained by means of a fourier convolution technique. all two - body potentials ( incl... | arxiv:1001.2370 |
recent model - free reinforcement learning algorithms have proposed incorporating learned dynamics models as a source of additional data with the intention of reducing sample complexity. such methods hold the promise of incorporating imagined data coupled with a notion of model uncertainty to accelerate the learning of... | arxiv:1803.00101 |
we consider an ensemble of atoms with $ \ lambda $ - type level structure trapped in a single - mode cavity, and propose a geometric scheme of coherent manipulation of quantum states on the subspace of zero - energy states within the quantum zeno subspace of the system. we find that the particular subspace inherits the... | arxiv:2103.07907 |
in this paper, we show that if a graph $ g $ satisfies $ c _ { 1 } ( g - x ) + \ frac { 2 } { 3 } c _ { 3 } ( g - x ) \ leq \ frac { 4 } { 3 } | x | + \ frac { 1 } { 3 } $ for all $ x \ subseteq v ( g ) $, then $ g $ has a $ \ { p _ { 2 }, p _ { 5 } \ } $ - factor, where $ c _ { i } ( g - x ) $ is the number of compone... | arxiv:1503.08556 |
this paper deals with the modeling of social competition, possibly resulting in the onset of extreme conflicts. more precisely, we discuss models describing the interplay between individual competition for wealth distribution that, when coupled with political stances coming from support or opposition to a government, m... | arxiv:1202.4554 |
in this paper, we study the allocation of indivisible chores and consider the problem of finding a fair allocation that is approximately efficient. we shift our attention from the multiplicative approximation to the additive one. our results are twofold, with ( 1 ) bounding how the optimal social cost escalates resulti... | arxiv:2410.15738 |
in the recent years, dna has emerged as a potentially viable storage technology. dna synthesis, which refers to the task of writing the data into dna, is perhaps the most costly part of existing storage systems. accordingly, this high cost and low throughput limits the practical use in available dna synthesis technolog... | arxiv:2204.07013 |
machine learning models have shone in a variety of domains and attracted increasing attention from both the security and the privacy communities. one important yet worrying question is : will training models under the differential privacy ( dp ) constraint have an unfavorable impact on their adversarial robustness? whi... | arxiv:2211.08942 |
stochastic rounding is a probabilistic rounding mode that is surprisingly effective in large - scale computations and low - precision arithmetic. its random nature promotes error cancellation rather than error accumulation, resulting in slower growth of roundoff errors as the problem size increases, especially when com... | arxiv:2410.10517 |
this paper presents approaches to determine a network based pricing for 3d printing services in the context of a two - sided manufacturing - as - a - service marketplace. the intent is to provide cost analytics to enable service bureaus to better compete in the market by moving away from setting ad - hoc and subjective... | arxiv:1907.07673 |
we prove that every unital c * - algebra $ a $ has the mazur - - ulam property. namely, every surjective isometry from the unit sphere $ s _ a $ of $ a $ onto the unit sphere $ s _ y $ of another normed space $ y $ extends to a real linear map. this extends the result of a. m. peralta and f. j. fernandez - polo who hav... | arxiv:1804.10674 |
synthetic microbiomes offer new possibilities for modulating microbiota, to address the barriers in multidtug resistance ( mdr ) research. we present a bayesian optimization approach to enable efficient searching over the space of synthetic microbiome variants to identify candidates predictive of reduced mdr. microbiom... | arxiv:2405.00070 |
we calculate the geometric phase of a spin - 1 / 2 system driven by a one and two mode quantum field subject to decoherence. using the quantum jump approach, we show that the corrections to the phase in the no - jump trajectory are different when considering an adiabatic and non - adiabatic evolution. we discuss the im... | arxiv:quant-ph/0306178 |
parking lots ( pls ) are usually full with cars. if these cars are formed into a self - organizing vehicular network, they can be new kind of road side units ( rsus ) in urban area to provide communication data forwarding between mobile terminals nearby and a base station. however cars in pls can leave at any time, whi... | arxiv:1801.09252 |
speech derverberation using a single microphone is addressed in this paper. motivated by the recent success of the fully convolutional networks ( fcn ) in many image processing applications, we investigate their applicability to enhance the speech signal represented by short - time fourier transform ( stft ) images. we... | arxiv:1803.08243 |
in this paper, we propose a martingale - based neural network, soc - martnet, for solving high - dimensional hamilton - jacobi - bellman ( hjb ) equations where no explicit expression is needed for the infimum of the hamiltonian, $ \ inf _ { u \ in u } h ( t, x, u, z, p ) $, and stochastic optimal control problems ( so... | arxiv:2405.03169 |
(... ) since 1998, only half a dozen spectroscopically confirmed associations have been discovered and xrf 100316d associated with the type - ic sn 2010bh at z = 0. 059 is among the latest. we began observations with grond 12 hours after the grb trigger and continued until 80 days after the burst. grond provided excell... | arxiv:1110.4109 |
we calculate the elastic properties of janus transition metal dichalcogenide ( tmd ) nanotubes using first principles kohn - sham density functional theory ( dft ). specifically, we perform electronic structure simulations that exploit the cyclic and helical symmetry in the system to compute the young ' s moduli, poiss... | arxiv:2111.06446 |
audio - driven facial reenactment is a crucial technique that has a range of applications in film - making, virtual avatars and video conferences. existing works either employ explicit intermediate face representations ( e. g., 2d facial landmarks or 3d face models ) or implicit ones ( e. g., neural radiance fields ), ... | arxiv:2306.07579 |
in this paper, fluid - particle interactions in lock - exchange turbidity currents ( tcs ) over a flat bed are investigated using a model combining les and dem ( large - eddy simulation and discrete element method ). the reliability of this model is demonstrated via comparing the numerical solutions with measurements o... | arxiv:2203.12869 |
we present here the main characteristics of the bhc igr j17091 - 3624 outbursts occurred several times since 1994. since 2003, the source has been extensively observed by integral and swift. in particular, we report results on the last 2011 outburst that showed a rare variability behaviour observed before only in the g... | arxiv:1302.3485 |
there is a rich and growing literature on producing local contrastive / counterfactual explanations for black - box models ( e. g. neural networks ). in these methods, for an input, an explanation is in the form of a contrast point differing in very few features from the original input and lying in a different class. o... | arxiv:2002.08247 |
let $ a $ be a non - projectively - pluripolar set in a fr \ ' { e } chet space $ e. $ we give sufficient conditions to ensure the convergence on some zero - neighbourhood in $ e $ of a ( sequence of ) formal power series of fr \ ' { e } chet - valued continuous homogeneous polynomials provided that the convergence hol... | arxiv:1901.03825 |
a linear isometry $ r $ of $ \ mathbb { r } ^ d $ is called a similarity isometry of a lattice $ \ gamma \ subseteq \ mathbb { r } ^ d $ if there exists a positive real number $ \ beta $ such that $ \ beta r \ gamma $ is a sublattice of ( finite index in ) $ \ gamma $. the set $ \ beta r \ gamma $ is referred to as a s... | arxiv:2002.07460 |
we present a detailed spectral and timing analysis of cygnus x - 1 with multi - epoch observations, during $ 2016 $ to $ 2019 $, by sxt and laxpc on - board astrosat. we model the spectra in broad energy range of $ 0. 5 \! - \! 70. 0 \, \ rm { kev } $ to study the evolution of spectral properties while cygnus x - 1 tra... | arxiv:2108.01130 |
directing the propagation of near - infrared radiation is a major concern in improving the efficiency of solar cells and thermal insulators. a facile approach to scatter light in the near - infrared region without excessive heating is to embed compact layers with semiconductor particles. the directional scattering by s... | arxiv:2007.01256 |
a wavepacket model for a system of free pions, which takes into account the full permutation symmetry of the wavefunction and which is suitable for any phase space parametrization is developed. the properties of the resulting mixed ensembles and the two - particle correlation function are discussed. a physical interpre... | arxiv:nucl-th/9702005 |
this paper presents approximate confidence intervals for each function of parameters in a banach space based on a bootstrap algorithm. we apply kernel density approach to estimate the persistence landscape. in addition, we evaluate the quality distribution function estimator of random variables using integrated mean sq... | arxiv:1803.03677 |
conformal prediction is an emerging technique for uncertainty quantification that constructs prediction sets guaranteed to contain the true label with a predefined probability. previous works often employ temperature scaling to calibrate classifiers, assuming that confidence calibration benefits conformal prediction. h... | arxiv:2402.04344 |
in this paper we introduce a new method to produce lower bounds for the waring rank of symmetric tensors. we also introduce the notion of $ e $ - computability and we use it to prove that strassen ' s conjecture holds in infinitely many new cases. | arxiv:1506.03176 |
we show that a simple and straightforward rational approximation to the thomas - - fermi equation provides the slope at origin with unprecedented accuracy. we compare present approach with other available ones. | arxiv:0803.2163 |
skyrmions have attracted rapidly growing interest due to their topological properties and unique aspects for potential novel applications such as data storage and soft robotics. they can also serve as key elements for materials by design, self - assembly, and functional soft materials. while not real particles, these s... | arxiv:2001.09615 |
large language models ( llms ) can perform chart question - answering tasks but often generate unverified hallucinated responses. existing answer attribution methods struggle to ground responses in source charts due to limited visual - semantic context, complex visual - text alignment requirements, and difficulties in ... | arxiv:2502.00989 |
as a sub - discipline of evolutionary and computational linguistics, emergent communication ( ec ) studies communication protocols, called emergent languages, arising in simulations where agents communicate. a key goal of ec is to give rise to languages that share statistical properties with natural languages. in this ... | arxiv:2311.04453 |
in superconductors, the combination of broken time - reversal and broken inversion symmetries can result in a critical current being dependent on the direction of current flow. this phenomenon is known as superconducting diode effect ( sde ) and has great potential for applications in future low - temperature electroni... | arxiv:2308.04817 |
classical molecular dynamics simulations are a common component of multi - modal analyses from scattering measurements, such as small - angle scattering and diffraction. users of these experimental techniques often have no formal training in the theory and practice of molecular dynamics simulation, leading to the possi... | arxiv:1902.01324 |
nuclear - polarizability corrections that go beyond unretarded - dipole approximation are calculated analytically for hydrogenic ( atomic ) s - states. these retardation corrections are evaluated numerically for deuterium and contribute - 0. 68 khz, for a total polarization correction of 18. 58 ( 7 ) khz. our results a... | arxiv:nucl-th/9704032 |
relational learning deals with data that are characterized by relational structures. an important task is collective classification, which is to jointly classify networked objects. while it holds a great promise to produce a better accuracy than non - collective classifiers, collective classification is computational c... | arxiv:1609.04508 |
the secondary e + and e - populations in near earth ' s orbit have been calculated by simulation. the results are in very good agreement with the recent ams measurements. the e $ ^ + $ over e $ ^ - $ flux ratio for particles below the geomagnetic cutoff appears to be due to the geomagnetic east - west effect. | arxiv:astro-ph/0103474 |
we describe another detectora designed for the international linear collider based on several tested instrumentation innovations in order to achieve the necessary experi - mental goal of a detecter that is 2 - to - 10 times better than the already excellent slc and lep detectors, in particular, ( 1 ) dual - readout cal... | arxiv:1307.5495 |
let $ g $ be a finite cyclic group. every sequence $ s $ of length $ l $ over $ g $ can be written in the form $ s = ( n _ 1g ) \ cdot \ ldots \ cdot ( n _ lg ) $ where $ g \ in g $ and $ n _ 1, \ ldots, n _ l \ in [ 1, \ ord ( g ) ] $, and the index $ \ ind ( s ) $ of $ s $ is defined to be the minimum of $ ( n _ 1 + ... | arxiv:1303.1676 |
we are developing a kilo - pixels ti / au tes array as a backup option for athena x - ifu. here we report on single - pixel performance of a 32 $ \ times $ 32 array operated in a frequency division multiplexing ( fdm ) readout system, with bias frequencies in the range 1 - 5 mhz. we have tested the pixels response at s... | arxiv:2102.08103 |
we present improved empirical density profiles of uranus and interpret them in terms of their temperature and composition using a new random algorithm. the algorithm to determine the temperature and composition is agnostic with respect to the temperature gradient in non - isentropic regions and chooses randomly amongst... | arxiv:2408.10336 |
the large area telescope ( lat ) on board the fermi gamma - ray space telescope routinely detects the highly dust - absorbed, reddened, and mev - peaked flat spectrum radio quasar pks 1830 - 211 ( z = 2. 507 ). its apparent isotropic gamma - ray luminosity ( e > 100 mev ) averaged over $ \ sim $ 3 years of observations... | arxiv:1411.4915 |
a substantial enhancement of the luminosity. | arxiv:1506.01529 |
in this paper, we consider a multiuser miso downlink cognitive network coexisting with a primary network. with the purpose of exploiting the spatial degree of freedom to counteract the inter - network interference and intra - network ( inter - user ) interference simultaneously, we propose to perform zero - forcing bea... | arxiv:1310.4301 |
anomaly detection in supercomputers is a very difficult problem due to the big scale of the systems and the high number of components. the current state of the art for automated anomaly detection employs machine learning methods or statistical regression models in a supervised fashion, meaning that the detection tool i... | arxiv:1811.05269 |
every finite graph admits a \ emph { simple ( topological ) drawing }, that is, a drawing where every pair of edges intersects in at most one point. however, in combination with other restrictions simple drawings do not universally exist. for instance, \ emph { $ k $ - planar graphs } are those graphs that can be drawn... | arxiv:2008.10794 |
this paper describes a gradient - descent based optimization algorithm for synthesizing multi - tone sinusoidal frequency modulated ( mtsfm ) waveforms with low auto - correlation function ( acf ) sidelobes in a specified region of time delays while preserving the acf mainlobe width. the algorithm optimizes the general... | arxiv:2304.11386 |
language models ' ability to extrapolate learned behaviors to novel, more complex environments beyond their training scope is highly unknown. this study introduces a path planning task in a textualized gridworld to probe language models ' extrapolation capabilities. we show that conventional approaches, including next ... | arxiv:2406.15275 |
watching tv not only provides news information but also gives an opportunity for different generations to communicate. with the proliferation of smartphones, pc, and the internet, increase the opportunities for communication in front of the television is also likely to diminish. this has led to some problems further fr... | arxiv:2302.14472 |
we show that under the effect of an external electric field and a gradient of chemical potential, a topological electric current can be induced in weyl semimetals without inversion and mirror symmetries. we derive analytic expressions for the nonlinear conductivity tensor and show that it is nearly quantized for small ... | arxiv:2012.09307 |
the construction of algebraic structure of central molecular chirality is provided starting from the empirical fischer projections for tetrahedrons. a matrix representation is given and the algebra of o ( 4 ) orthogonal group for rotations and inversions is identified. the result can be generalized to chains of connect... | arxiv:physics/0411073 |
preliminary results from the four lep experiments using data collected at 189 gev have shown no evidence for the standard model higgs boson. the preliminary 95 % confidence level lower limits on the sm higgs boson mass from aleph, delphi, opal, and l3 are 90. 4 gev, 94. 1 gev, 95. 5 gev, and 95. 2 gev, respectively. wh... | arxiv:hep-ex/9903013 |
self - organizing logic is a recently - suggested framework that allows the solution of boolean truth tables " in reverse, " i. e., it is able to satisfy the logical proposition of gates regardless to which terminal ( s ) the truth value is assigned ( " terminal - agnostic logic " ). it can be realized if time non - lo... | arxiv:1708.08949 |
it was previously shown that at critical central charge, $ n $ - extended superstrings can be embedded in $ ( n + 1 ) $ - extended superstrings. in other words, $ ( n = 0, c = 26 ) \ to ( n = 1, c = 15 ) \ to ( n = 2, c = 6 ) \ to ( n = 3, c = 0 ) \ to ( n = 4, c = 0 ) $. in this paper, we show that similar embeddings ... | arxiv:hep-th/9405144 |
a collaborative study by brookhaven - mcmaster - central michigan is underway to evaluate b ( e2 ) $ \ uparrow $ for 0 $ ^ { + } _ { 1 } $ $ \ rightarrow $ 2 $ ^ { + } _ { 1 } $ transitions. this work is a continuation of a previous usndp evaluation and has been motivated by a large number of recent measurements and nu... | arxiv:1302.6881 |
we focus on the scenario in which an agent can exploit his information advantage to manipulate the outcome of an election. in particular, we study district - based elections with two candidates, in which the winner of the election is the candidate that wins in the majority of the districts. district - based elections a... | arxiv:2012.05002 |
in this paper we explore avenues for improving the reliability of dimensionality reduction methods such as non - negative matrix factorization ( nmf ) as interpretive exploratory data analysis tools. we first explore the difficulties of the optimization problem underlying nmf, showing for the first time that non - triv... | arxiv:0810.2311 |
we establish two - term spectral asymptotics for the operator of linear elasticity with mixed boundary conditions on a smooth compact riemannian manifold of arbitrary dimension. we illustrate our results by explicit examples in dimension two and three, thus verifying our general formulae both analytically and numerical... | arxiv:2311.18652 |
this paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi - rotors. the proposed motion planner considers payload capacity, recharging constraints, and utilizes signal temporal logic ( stl ) specifications for encoding mission objectives and temporal ... | arxiv:2309.10406 |
we present observations of the intrinsic absorption in the seyfert 1 galaxy ngc 3783 obtained with the stis / hst and fuse. we have coadded multiple stis and fuse observations to obtain a high s / n averaged spectrum spanning 905 - 1730 a. the averaged spectrum reveals absorption in o vi, n v, c iv, n iii, c iii and th... | arxiv:astro-ph/0209484 |
we study relativized lascar groups, which are formed by relativizing lascar groups to the solution set of a partial type $ \ sigma $. we introduce the notion of a lascar tuple for $ \ sigma $ and by considering the space of types over a lascar tuple for $ \ sigma $, the topology for a relativized lascar group is ( re -... | arxiv:2402.11619 |
this paper proposes an adaptation method for end - to - end speech recognition. in this method, multiple automatic speech recognition ( asr ) 1 - best hypotheses are integrated in the computation of the connectionist temporal classification ( ctc ) loss function. the integration of multiple asr hypotheses helps allevia... | arxiv:2103.15515 |
the standard model provides an excellent description of the observables measured at high energy lepton and hadron colliders. however, measurements of the forward - backward asymmetry of the bottom quark at lep suggest that the effective coupling of the right - handed bottom quark to the neutral weak gauge boson is sign... | arxiv:hep-ph/0308001 |
indexed symmetric monoidal categories are an important refinement of bicategories - - this structure underlies several familiar bicategories, including the homotopy bicategory of parametrized spectra, and its equivariant and fiberwise generalizations. in this paper, we extend existing coherence theorems to the setting ... | arxiv:1811.12873 |
numerical modelling of coherent spin relaxation in nanomagnets, formed by magnetic molecules of high spins, is accomplished. such a coherent spin dynamics can be realized in the presence of a resonant electric circuit coupled to the magnet. computer simulations for a system of a large number of interacting spins is an ... | arxiv:0804.4368 |
we calculate the magnetic moment ( ` persistent current ' ) in a strongly correlated electron system - - - a wigner crystal - - - in a one - dimensional ballistic ring. the flux and temperature dependence of the persistent current in a perfect ring is shown to be essentially the same as for a system of non - interactin... | arxiv:cond-mat/9412096 |
we will study the hitchin ' s hamiltonian system for a modular stack of principal sl _ 2 ( c ) bundle on a smooth projective curve which has a parabolic reduction at certain points. as an application we will obtain a generalization of the beilinson - drinfeld isomorphism, which is a quantization of the hitchin ' s hami... | arxiv:0708.2957 |
the combined action of gravity and quantum mechanics gives rise to a minimum time uncertainty in the lowest order approximation of a perturbative scheme, in which quantum effects are regarded as corrections to the classical spacetime geometry. from the nonperturbative point of view, both gravity and quantum mechanics a... | arxiv:0707.4362 |
few - shot segmentation ( fss ) aims to segment the target object in a query image using only a small set of support images and masks. therefore, having strong prior information for the target object using the support set is essential for guiding the initial training of fss, which leads to the success of few - shot seg... | arxiv:2411.11917 |
the seyfert galaxy ngc 6814 is a highly variable x - ray source despite the fact that it has recently been shown not to be the source of periodic variability. the 1. 5 year monitoring by rosat has revealed a long term downward trend of the x - ray flux and an episode of high and rapidly varying flux ( e. g. by a factor... | arxiv:astro-ph/9612176 |
we consider a u ( 1 ) x su ( 2 ) gauge theory on the four - dimensional manifold s ^ 1 x s ^ 3. if we make the assumption that only gauge transformations connected to the identity are allowed, the winding numbers of u ( 1 ) around s ^ 1 and of su ( 2 ) around s ^ 3 become topological conserved quantities. we derive the... | arxiv:hep-ph/9909525 |
in this paper, the convergence of alternating minimization is established for non - smooth convex optimization in banach spaces, and novel rates of convergence are provided. as objective function a composition of a smooth and a non - smooth part is considered with the latter being block - separable, e. g., correspondin... | arxiv:1911.00404 |
we study a twisted version of grigorchuk ' s first group, and stress its similarities and differences to its model. in particular, we show that it admits a finite endomorphic presentation, has infinite - rank multiplier, and does not have the congruence property. | arxiv:0904.1600 |
we study the dynamics of the map endomorphism of n - dimensional projective space defined by f ( x ) = ax ^ d, where a is a matrix and d is at least 2. when d > n ^ 2 + n + 1, we show that the critical height of such a morphism is comparable to its height in moduli space, confirming a case of a natural generalization o... | arxiv:2006.12869 |
the lineshape in an auto - oscillator with a large nonlinear frequency shift in the presence of thermal noise is calculated. near the generation threshold, this lineshape becomes strongly non - lorentzian, broadened, and asymmetric. a lorentzian lineshape is recovered far below and far above threshold, which suggests t... | arxiv:0710.0495 |
( 1 ) a simple transversity analysis permits one to separate the p - even and p - odd partial waves in such decays as $ b _ s \ to j / \ psi \ phi $ and $ b \ to j / \ psi k ^ * $. this method is relevant to the separation of contributions of cp - even and cp - odd final states in $ b _ s $ decays, and hence to the mea... | arxiv:hep-ph/9604319 |
a popular model selection approach for generalized linear mixed - effects models is the akaike information criterion, or aic. among others, \ cite { vaida05 } pointed out the distinction between the marginal and conditional inference depending on the focus of research. the conditional aic was derived for the linear mix... | arxiv:0810.2010 |
we characterized the interfaces of heterostructures with different stack sequences of la0. 7sr0. 3mno3 / bifeo3 ( lsmo / bfo ) and bfo / lsmo using tem revealing sharp and rough interfaces, respectively. magnetometry and magnetoresistance measurements do not show a detectable exchange bias coupling for the multistack w... | arxiv:1601.07360 |
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