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supernova 1987a ( sn1987a ) in the neighbouring large magellanic cloud offers a superb opportunity to follow the evolution of a supernova and its remnant in unprecedented detail. recently, far - infrared ( far - ir ) and sub - mm emission was detected from the direction of sn1987a, which was interpreted as due to the e... | arxiv:1203.4975 |
the perturbative qcd static potential and ultrasoft contributions, which together give the static energy, have been calculated to three - and four - loop order respectively, by several authors. using the renormalization group, and pad \ ' e approximants, we estimate the four - loop corrections to the static energy. we ... | arxiv:2007.10775 |
braid combing is a procedure defined by emil artin to solve the word problem in braid groups for the first time. it is well - known to have exponential complexity. in this paper, we use the theory of straight line programs to give a polynomial algorithm which performs braid combing. this procedure can be applied to bra... | arxiv:1712.01552 |
we review the nucleon ' s twist - 3 polarized structure functions from the viewpoint of gauge invariant, nonlocal light - cone operators in qcd. we discuss a systematic treatment of the polarized structure functions and the corresponding parton distribution functions. we emphasize unique features of higher twist distri... | arxiv:hep-ph/9909300 |
we introduce a constructive method applicable to a large number of description logics ( dls ) for establishing the concept - based beth definability property ( cbp ) based on sequent systems. using the highly expressive dl riq as a case study, we introduce novel sequent calculi for riq - ontologies and show how certain... | arxiv:2404.15840 |
we propose a surface - edge state theory for half quantized hall conductance of surface states in topological insulators. the gap opening of a single dirac cone for the surface states in a weak magnetic field is demonstrated. we find a new surface state resides on the surface edges and carries chiral edge current, resu... | arxiv:1007.0497 |
inter - city highway transportation is significant for urban life. as one of the key functions in intelligent transportation system ( its ), traffic evaluation always plays significant role nowadays, and daily traffic flow prediction still faces challenges at network - wide toll stations. on the one hand, the data imba... | arxiv:2308.05601 |
as part of the first far - ir line survey towards orion kl, we present the detection of seven new rotationally excited oh lambda - doublets ( at 48, 65, 71, 79, 98 and 115 um ). observations were performed with the long wavelength spectrometer ( lws ) fabry - perots on board the infrared space observatory ( iso ). in t... | arxiv:astro-ph/0603077 |
in this paper we show that for any affine complete rational surface singularity there is a correspondence between the dual graph of the minimal resolution and the quiver of the endomorphism ring of the special cm modules. we thus call such an algebra the reconstruction algebra. as a consequence the derived category of ... | arxiv:0809.1973 |
a quantum dot coupled to an optical cavity has recently proven to be an excellent source of on - demand single photons. typically, applications require simultaneous high efficiency of the source and quantum indistinguishability of the extracted photons. while much progress has been made both in suppressing background s... | arxiv:1805.08823 |
those involved in the treatment of eye diseases such as cataracts. ibn sina ( known as avicenna in the west, c. 980 – 1037 ) was a prolific persian medical encyclopedist wrote extensively on medicine, with his two most notable works in medicine being the kitab al - shifaʾ ( " book of healing " ) and the canon of medici... | https://en.wikipedia.org/wiki/History_of_science |
let $ e $ be an elliptic curve defined over $ \ mathbb { q } $ and let $ n $ be a positive integer. now, $ m _ e ( n ) $ counts the number of primes $ p $ such that the group $ e _ p ( \ mathbb { f } _ p ) $ is of order $ n $. in an earlier joint work with balasubramanian, we showed that $ m _ e ( n ) $ follows poisson... | arxiv:1609.08549 |
the ever - growing processing power of supercomputers in recent decades enables us to explore increasing complex scientific problems. effective scheduling these jobs is crucial for individual job performance and system efficiency. the traditional job schedulers in high performance computing ( hpc ) are simple and conce... | arxiv:2109.09269 |
we study the cp asymmetries of the rare top - quark decays $ t \ to c \ gamma $ and $ t \ to cg $ in the aligned two - higgs - doublet model ( a2hdm ), which is generically characterized by new sources of cp violation beyond the standard model ( sm ). specifically, the branching ratios and cp asymmetries of these rare ... | arxiv:2409.04179 |
first - order linear temporal logic ( foltl ) is a flexible and expressive formalism capable of naturally describing complex behaviors and properties. although the logic is in general highly undecidable, the idea of using it as a specification language for the verification of complex infinite - state systems is appeali... | arxiv:2405.20057 |
we present a completely perturbative model that displays behavior similar to that of walking technicolor. in one phase of the model rg - trajectories run towards an ir - fixed point but approximate scale invariance is spontaneously broken before reaching the fixed point. the trajectories then run away from it and a lig... | arxiv:1105.2370 |
civilizations. this includes the ancient and medieval kingdoms and empires of the middle east and near east, ancient iran, ancient egypt, ancient nubia, and anatolia in present - day turkey, ancient nok, carthage, the celts, greeks and romans of ancient europe, medieval europe, ancient and medieval china, ancient and m... | https://en.wikipedia.org/wiki/Metallurgy |
the accurate localization of gamma - ray bursts remains a crucial task. while historically, improved localization have led to the discovery of afterglow emission and the realization of their cosmological distribution via redshift measurements, a more recent requirement comes with the potential of studying the kilonovae... | arxiv:2205.08637 |
we review several geometric aspects and properties of the orbifold t6 / z ( 2 ) xz ( 6 ' ) xor with discrete torsion, that are crucial with respect to global model building and the search for discrete gauge symmetries in the context of intersecting d6 - brane models. a global six - stack pati - salam model is used for ... | arxiv:1303.6845 |
the container motion along a planar circular trajectory at a constant angular velocity, i. e. orbital shaking, is of interest in several industrial applications, e. g. for fermentation processes or in cultivation of stem cells, where good mixing and efficient gas exchange are the main targets. under these external forc... | arxiv:2203.11267 |
a non - relativistic theory of inertia based on mach ' s principle is presented as has been envisaged but not achieved by ernst mach in 1872. central feature is a space - dependent, anisotropic, symmetric inert mass tensor. | arxiv:1808.06687 |
seymour conjectured that every oriented simple graph contains a vertex whose second neighborhood is at least as large as its first. seymour ' s conjecture has been verified in several special cases, most notably for tournaments by fisher. one extension of the conjecture that has been used by several researchers is to c... | arxiv:1212.1883 |
the paper is devoted to the investigation of finite dimensional commutative nilpotent ( associative ) algebras n over an arbitrary base field of characteristic zero. due to the lack of a general structure theory for algebras of this type ( as opposed to the semi - simple case ) we associate various objects to every n w... | arxiv:1101.3088 |
a non - monotonic energy dependence of the $ k ^ { + } / \ pi ^ { + } $ ratio with a sharp maximum close to 30 a $ \ cdot $ gev is observed in central pb + pb collisions. within a statistical model of the early stage, this is interpreted as a sign of the phase transition to a qgp, which causes a sharp change in the ene... | arxiv:nucl-ex/0312022 |
we develop a lazard correspondence between post - lie rings and skew braces that satisfy a natural completeness condition. this is done through a thorough study of how the lazard correspondence behaves on semi - direct sums of lie rings. in particular, for a prime $ p $ and $ k < p $, we obtain a correspondence between... | arxiv:2406.02475 |
this article advances the prerequisite network as a means to visualize the hidden structure in an academic curriculum. network technologies have been used for some time now in social analyses and more recently in biology in the areas of genomics and systems biology. here i treat the curriculum as a complex system with ... | arxiv:1408.5340 |
learned image compression ( lic ) techniques have achieved remarkable progress ; however, effectively integrating high - level semantic information remains challenging. in this work, we present a \ underline { s } emantic - \ underline { e } nhanced \ underline { l } earned \ underline { i } mage \ underline { c } ompr... | arxiv:2504.01279 |
to handle ai tasks that combine perception and logical reasoning, recent work introduces neurosymbolic deep neural networks ( ns - dnns ), which contain - - in addition to traditional neural layers - - symbolic layers : symbolic expressions ( e. g., sat formulas, logic programs ) that are evaluated by symbolic solvers ... | arxiv:2402.03663 |
black and white holes play remarkably contrasting roles in general relativity versus observational astrophysics. while there is overwhelming observational evidence for the existence of compact objects that are " cold, dark, and heavy ", which thereby are natural candidates for black holes, the theoretically viable time... | arxiv:2304.10692 |
we find an explicit combinatorial interpretation of the coefficients of kerov character polynomials which express the value of normalized irreducible characters of the symmetric groups s ( n ) in terms of free cumulants r _ 2, r _ 3,... of the corresponding young diagram. our interpretation is based on counting certain... | arxiv:0810.3209 |
in this paper, we consider a secondary wireless powered communication network ( wpcn ) underlaid to a primary point - to - point communication link. the wpcn consists of a multi - antenna hybrid access point ( hap ) that transfers wireless energy to a cluster of low - power wireless devices ( wds ) and receives sensing... | arxiv:1904.09863 |
molecular dynamics triggered by interaction with light often involve the excitation of several electronic, vibrational, and rotational states. characterizing the resulting coupled electronic and nuclear wave packet motion represents a severe challenge, even for small polyatomic systems. in this letter, we demonstrate h... | arxiv:2408.07958 |
we investigate the absorption and emission features in observations of gx 301 - 2 detected with insight - hxmt / le in 2017 - 2019. at different orbital phases, we found prominent fe kalpha, kbeta and ni kalpha lines, as well as compton shoulders and fe k - shell absorption edges. these features are due to the x - ray ... | arxiv:2012.02556 |
the coexistence of ferromagnetism and metallic conduction in doped manganites has long been explained by a double - exchange model in which the ferromagnetic exchange arises from the carrier hopping. we evaluate the zero - temperature spin stiffness d ( 0 ) and the curie temperature t _ { c } on the basis of the double... | arxiv:cond-mat/0001390 |
the understanding and modeling of complex physical phenomena through dynamical systems has historically driven scientific progress, as it provides the tools for predicting the behavior of different systems under diverse conditions through time. the discovery of dynamical systems has been indispensable in engineering, a... | arxiv:2504.02630 |
molecular adsorption at the surface of a 2d material poses numerous questions regarding the modification to the band structure and interfacial states, which of course deserve full attention. in line with this, first - principle density functional theory is employed on the graphene / ammonia system. we identify the effe... | arxiv:2003.11800 |
we investigate the method for the reconstruction of f ( r ) gravity models both from the background evolution observations and from the large scale structure measurements. due to the lack of the first principles, one needs to rely on the observations to build the $ f ( r ) $ gravity models. we show that the general $ f... | arxiv:1710.11581 |
optimization for robot control tasks, spanning various methodologies, includes model predictive control ( mpc ). however, the complexity of the system, such as non - convex and non - differentiable cost functions and prolonged planning horizons often drastically increases the computation time, limiting mpc ' s real - w... | arxiv:2408.03394 |
we study the generation of the wakefields by means of the high energy radiation of pulsars. the problem is considered in the framework of a one dimensional approach. we linearize the set of governing equations consisting of the momentum equation, continuity equation an poisson equation and show that a wavelike structur... | arxiv:1605.00905 |
i further study the manner by which a pair of opposite jets shape the keyhole morphological structure of the core - collapse supernova ( ccsn ) sn 1997a, now the ccsn remnant ( ccsnr ) 1987a. by doing so, i strengthen the claim that the jittering - jet explosion mechanism ( jjem ) accounts for most, likely all, ccsne. ... | arxiv:2404.07455 |
we present the theory and numerical evaluations of the backscattering rate determined by acceptor holes or mn spins in hgte and ( hg, mn ) te quantum wells in the quantum spin hall regime. the role of anisotropic s - p and sp - d exchange interactions, kondo coupling, luttinger liquid effects, precessional dephasing, a... | arxiv:2209.03283 |
high - throughput methods for yielding the set of connections in a neural system, the connectome, are now being developed. this tutorial describes ways to analyze the topological and spatial organization of the connectome at the macroscopic level of connectivity between brain regions as well as the microscopic level of... | arxiv:1105.4705 |
jacobi diffusion is a representative diffusion process whose solution is bounded in a domain under certain conditions on its drift and diffusion coefficients. however, the process without such conditions has been far less investigated. we explore a jacobi diffusion whose drift coefficient is modulated by another proces... | arxiv:2501.02729 |
new analysis of the heavy, neutral mssm higgs bosons h and a production at the photon collider is presented for m _ a = 200, 250, 300 and 350 gev in the parameter range corresponding to the so called " lhc wedge " and beyond. the expected precision of the cross section measurement for the process gamma + gamma - > a, h... | arxiv:hep-ph/0507006 |
i present a parametric, bijective transformation to generate heavy tail versions y of arbitrary rvs x ~ f. the tail behavior of the so - called ' heavy tail lambert w x f ' rv y depends on a tail parameter delta > = 0 : for delta = 0, y = x, for delta > 0 y has heavier tails than x. for x being gaussian, this meta - fa... | arxiv:1010.2265 |
in a recent paper, we have proposed an unsupervised algorithm for audio signal segmentation entirely based on bayesian methods. in its first implementation, however, the method showed poor computational performance. in this paper we address this question by describing a fast parallel implementation using the cython lib... | arxiv:1803.01801 |
we use observed transmission line outage data to make a markov influence graph that describes the probabilities of transitions between generations of cascading line outages, where each generation of a cascade consists of a single line outage or multiple line outages. the new influence graph defines a markov chain and g... | arxiv:1902.00686 |
the classical diagrams of radio loudness and jet power as a function of mass and accretion rate of the central spacetime singularity in active galactic nuclei are reanalyzed by including the data of the recently discovered powerful relativistic jets in narrow - line seyfert 1 galaxies. the results are studied in the li... | arxiv:1106.5532 |
we obtain gaussian upper and lower bounds on the transition density q _ t ( x, y ) of the continuous time simple random walk on a supercritical percolation cluster c _ { \ infty } in the euclidean lattice. the bounds, analogous to aronsen ' s bounds for uniformly elliptic divergence form diffusions, hold with constants... | arxiv:math/0302004 |
7200 specifies the data fields used in title blocks. it standardizes eight mandatory data fields : title ( hence the name " title block " ) created by ( name of drafter ) approved by legal owner ( name of company or organization ) document type drawing number ( same for every sheet of this document, unique for each tec... | https://en.wikipedia.org/wiki/Engineering_drawing |
beam energy scan programs in heavy - ion collisions aim to explore the qcd phase structure at high baryon density. sensitive observables are applied to probe the signatures of the qcd phase transition and critical point in heavy - ion collisions at rhic and sps. intriguing structures, such as dip, peak and oscillation,... | arxiv:1512.09215 |
topic models are popular statistical tools for detecting latent semantic topics in a text corpus. they have been utilized in various applications across different fields. however, traditional topic models have some limitations, including insensitivity to user guidance, sensitivity to the amount and quality of data, and... | arxiv:2310.04978 |
we discuss the correspondence point between a string state and a black hole, in a pp - wave background, and find that the answer is considerably different from that in a flat spacetime background. | arxiv:hep-th/0205043 |
when analyzing temporal networks, a fundamental task is the identification of dense structures ( i. e., groups of vertices that exhibit a large number of links ), together with their temporal span ( i. e., the period of time for which the high density holds ). we tackle this task by introducing a notion of temporal cor... | arxiv:1808.09376 |
language workbenches offer language designers an expressive environment in which to create their dsls. similarly, research into mechanised meta - theory has shown how dependently typed languages provide expressive environments to formalise and study dsls and their meta - theoretical properties. but can we claim that de... | arxiv:2301.12852 |
we compute holographic entanglement entropy for subregions of a bcft thermal state living on a nongravitating black hole background. the system we consider is doubly holographic and dual to an eternal black string with an embedded karch - randall brane that is parameterized by its angle. entanglement islands are conven... | arxiv:2112.09132 |
equilibration of n / z in binary breakup of an excited and transiently deformed projectile - like fragment ( plf * ), produced in peripheral collisions of 64zn + 27al, 64zn, 209bi at e / a = 45 mev, is examined. the composition of emitted light fragments ( 3 < = z < = 6 ) changes with the decay angle of the plf *. the ... | arxiv:1305.1320 |
this paper presents an alternative approach to p - values in regression settings. this approach, whose origins can be traced to machine learning, is based on the leave - one - out bootstrap for prediction error. in machine learning this is called the out - of - bag ( oob ) error. to obtain the oob error for a model, on... | arxiv:1701.04944 |
layered van der waals two - dimensional ( 2d ) magnets are a cornerstone of ultrathin spintronic and magnonic devices. the recent discovery of a 2d multiferroic with strong magnetoelectric coupling in nii $ _ 2 $ offers a promising platform for the electrical control of spin - wave transport. in this work, using ab ini... | arxiv:2407.21645 |
the exotic structures in the 2s _ { 1 / 2 } states of five pairs of mirror nuclei ^ { 17 } o - ^ { 17 } f, ^ { 26 } na - ^ { 26 } p, ^ { 27 } mg - ^ { 27 } p, ^ { 28 } al - ^ { 28 } p and ^ { 29 } si - ^ { 29 } p are investigated with the relativistic mean - field ( rmf ) theory and the single - particle model ( spm ) ... | arxiv:0708.0071 |
a recently developed spectral - element adaptive refinement incompressible magnetohydrodynamic ( mhd ) code [ rosenberg, fournier, fischer, pouquet, j. comp. phys. 215, 59 - 80 ( 2006 ) ] is applied to simulate the problem of mhd island coalescence instability ( mici ) in two dimensions. mici is a fundamental mhd proce... | arxiv:0711.3868 |
gravitational waves deliver information in exquisite detail about astrophysical phenomena, among them the collision of two black holes, a system completely invisible to the eyes of electromagnetic telescopes. models that predict gravitational wave signals from likely sources are crucial for the success of this endeavor... | arxiv:1503.02674 |
collaborative filtering models based on matrix factorization and learned similarities using artificial neural networks ( anns ) have gained significant attention in recent years. this is, in part, because anns have demonstrated good results in a wide variety of recommendation tasks. the introduction of anns within the ... | arxiv:2107.13472 |
we show that the qcd van der waals attractive potential is strong enough to bind a $ \ phi ^ { 0 } $ meson onto a nucleon inside a nucleus to form a bound state. the direct experimental signature for such an exotic state is proposed in the case of subthreshold $ \ phi ^ { 0 } $ meson photoproduction from nuclear target... | arxiv:nucl-th/0010042 |
we derive stringent constraints on the persistent source associated with frb 121102 : size $ 10 ^ { 17 } $ cm $ < r < 10 ^ { 18 } $ cm, age $ < 300 $ yr, characteristic electron energy $ \ varepsilon _ e \ sim0. 3 $ gev, total energy $ \ sim10 ^ { 49 } $ erg. the hot radiating plasma is confined by a cold plasma of mas... | arxiv:1703.06723 |
we consider a compressive hyperspectral imaging reconstruction problem, where three - dimensional spatio - spectral information about a scene is sensed by a coded aperture snapshot spectral imager ( cassi ). the cassi imaging process can be modeled as suppressing three - dimensional coded and shifted voxels and project... | arxiv:1507.01248 |
we study the c - axis transport of stacked, intrinsic junctions in bi2sr2cacu2o8 + y single crystals, fabricated by the double - sided ion beam processing technique from single crystal whiskers. measurements of the i - v characteristics of these samples allow us to obtain the temperature and voltage dependence of the q... | arxiv:cond-mat/9903256 |
in this paper we discuss an in - progress work on the development of a speech corpus for four low - resource indo - aryan languages - - awadhi, bhojpuri, braj and magahi using the field methods of linguistic data collection. the total size of the corpus currently stands at approximately 18 hours ( approx. 4 - 5 hours e... | arxiv:2206.12931 |
considerable interest is now focused on the detection of terrestrial mass planets around m dwarfs, and radial velocity surveys with high - resolution spectrographs in the near infrared are expected to be able to discover such planets. we explore the possibility of using commercially available molecular absorption gas c... | arxiv:0810.5342 |
the task of " unlearning " certain concepts in large language models ( llms ) has attracted immense attention recently, due to its importance in mitigating undesirable model behaviours, such as the generation of harmful, private, or incorrect information. current protocols to evaluate unlearning methods largely rely on... | arxiv:2406.11614 |
two atomic models of non - stoichiometric metal diborides m $ _ { 1 - x } $ b $ _ 2 $ are now assumed : ( i ) the presence of cation vacancies and ( ii ) the presence of ' super - stoichiometric ' boron which is placed in cation vacancy site. we have performed first principle total energy calculations using the vasp - ... | arxiv:0804.0894 |
we report the detection of co ( 6 - 5 ) and co ( 7 - 6 ) and their underlying continua from the host galaxy of quasar j100758. 264 + 211529. 207 ( p \ = oniu \ = a ' ena ) at z = 7. 5419, obtained with the northern extended millimeter array ( noema ). p \ = oniu \ = a ' ena belongs to the hyperluminous quasars at the e... | arxiv:2304.09129 |
we investigate a limit theorem on traversable length inside semi - cylinder in the 2 - dimensional supercritical bernoulli bond percolation, which gives an extension of theorem 2 in grimmett ( 1981 ). this type of limit theorems was originally studied for the extinction time for the 1 - dimensional contact process on a... | arxiv:math/0610744 |
improving the scalability of gnns is critical for large graphs. existing methods leverage three sampling paradigms including node - wise, layer - wise and subgraph sampling, then design unbiased estimator for scalability. however, the high variance still severely hinders gnns ' performance. on account that previous stu... | arxiv:2211.09813 |
polycyclic aromatic hydrocarbons ( pahs ) are carbon - based molecules that are ubiquitous in a variety of astrophysical objects and environments. in this work, we use jwst / miri mrs spectroscopy of three seyferts to compare their nuclear pah emission with that of star - forming regions. this study represents the firs... | arxiv:2208.11620 |
extremal compact hyperbolic surfaces contain a packing of discs of the largest possible radius permitted by the topology of the surface. it is well known that arithmetic conditions on the uniformizing group are necessary for the existence of a second extremal packing in the same surface, but constructing explicit examp... | arxiv:1905.13297 |
we prove a representation theorem for the choquet integral model. the preference relation is defined on a two - dimensional heterogeneous product set $ x = x _ 1 \ times x _ 2 $ where elements of $ x _ 1 $ and $ x _ 2 $ are not necessarily comparable with each other. however, making such comparisons in a meaningful way... | arxiv:1507.04167 |
understanding the origin of unintentional doping in ga2o3 is key to increasing breakdown voltages of ga2o3 based power devices. therefore, transport and capacitance spectroscopy studies have been performed to better understand the origin of unintentional doping in ga2o3. previously unobserved unintentional donors in co... | arxiv:1706.09960 |
we generalize several inequalities involving powers of the numerical radius for product of two operators acting on a hilbert space. for any $ a, b, x \ in \ mathbb { b } ( \ mathscr { h } ) $ such that $ a, b $ are positive, we establish some numerical radius inequalities for $ a ^ \ alpha xb ^ \ alpha $ and $ a ^ \ al... | arxiv:1409.0321 |
we report on the observation of spontaneously drifting coupled spin and quadrupolar density waves in the ground state of laser driven rubidium atoms. these laser - cooled atomic ensembles exhibit spontaneous magnetism via light mediated interactions when submitted to optical feedback by a retro - reflecting mirror. dri... | arxiv:2310.17305 |
we study the wigner crystallization on partially filled topological flat bands. we identify the wigner crystals by analyzing the cartesian and angular fourier transform of the pair correlation density of the many - body ground state obtained using exact diagonalization. the crystallization strength measured by the magn... | arxiv:1712.06007 |
batteryless iot devices, powered by energy harvesting, face significant challenges in maintaining operational efficiency and reliability due to intermittent power availability. traditional checkpointing mechanisms, while essential for preserving computational state, introduce considerable energy and time overheads. thi... | arxiv:2410.07202 |
##veyor of " junk science ". cameron ' s research has been heavily criticized for unscientific methods and distortions which attempt to link homosexuality with pedophilia. in one instance, cameron claimed that lesbians are 300 times more likely to get into car accidents. the splc states his work has been continually ci... | https://en.wikipedia.org/wiki/Junk_science |
the coronavirus disease 2019 ( covid - 19 ) has become a public health emergency of international concern affecting 201 countries and territories around the globe. as of april 4, 2020, it has caused a pandemic outbreak with more than 11, 16, 643 confirmed infections and more than 59, 170 reported deaths worldwide. the ... | arxiv:2004.09996 |
goyeneche et al. \ [ phys. \ rev. \ a \ textbf { 97 }, 062326 ( 2018 ) ] introduced several classes of quantum combinatorial designs, namely quantum latin squares, quantum latin cubes, and the notion of orthogonality on them. they also showed that mutually orthogonal quantum latin arrangements can be entangled in the s... | arxiv:2111.04055 |
we study scalar radiation spectra from a particle in circular orbit, in the background of the janis - newman - winicour ( jnw ) naked singularity. the differences in the nature of the spectra, from what one obtains with a schwarzschild black hole, is established. we also compute the angular distribution of the spectra. | arxiv:1303.6824 |
we attempt to measure the proper motions of two magnetars - the soft gamma - ray repeater sgr 1900 + 14 and the anomalous x - ray pulsar 1e 2259 + 586 - using two epochs of chandra observations separated by ~ 5 yr. we perform extensive tests using these data, archival data, and simulations to verify the accuracy of our... | arxiv:0810.4184 |
the modern deep learning method based on backpropagation has surged in popularity and has been used in multiple domains and application areas. at the same time, there are other - - less - known - - machine learning algorithms with a mature and solid theoretical foundation whose performance remains unexplored. one such ... | arxiv:2106.05373 |
the $ l _ 1 / l _ 2 $ norm ratio arose as a sparseness measure and attracted a considerable amount of attention due to three merits : ( i ) sharper approximations of $ l _ 0 $ compared to the $ l _ 1 $ ; ( ii ) parameter - free and scale - invariant ; ( iii ) more attractive than $ l _ 1 $ under highly - coherent matri... | arxiv:2401.15405 |
the nature of subproton scale fluctuations in the solar wind is an open question, partly because two similar types of electromagnetic turbulence can occur : kinetic alfven turbulence and whistler turbulence. these two possibilities, however, have one key qualitative difference : whistler turbulence, unlike kinetic alfv... | arxiv:1305.2950 |
several works have shown that the regularization mechanisms underlying deep neural networks ' generalization performances are still poorly understood. in this paper, we hypothesize that deep neural networks are regularized through their ability to extract meaningful clusters among the samples of a class. this constitut... | arxiv:2103.06733 |
we employ the formalism developed in \ cite { mentasti : 2023gmg } and \ cite { bartolo _ 2022 } to study the prospect of detecting an anisotropic stochastic gravitational wave background ( sgwb ) with the laser interferometer space antenna ( lisa ) alone, and combined with the proposed space - based interferometer tai... | arxiv:2312.10792 |
in 3 + 1 numerical simulations of dynamic black hole spacetimes, it ' s useful to be able to find the apparent horizon ( s ) ( ah ) in each slice of a time evolution. a number of ah finders are available, but they often take many minutes to run, so they ' re too slow to be practically usable at each time step. here i p... | arxiv:gr-qc/0306056 |
in recent years there has been considerable interest in developing photonic temperature sensors such as the fiber bragg gratings ( fbg ) as an alternative to resistance thermometry. in this study we examine the thermal response of fbgs over the temperature range of 233 k to 393 k. we demonstrate, in a hermetically seal... | arxiv:1603.07688 |
in the traditional simple step - stress partial accelerated life test ( ssspalt ), the items are put on normal operating conditions up to a certain time and after that the stress is increased to get the failure time information early. however, when the stress increases, an additional cost is incorporated that increases... | arxiv:2408.00734 |
in this paper we prove that a uniformly distributed random circular automaton $ \ mathcal { a } _ n $ of order $ n $ synchronizes with high probability ( whp ). more precisely, we prove that $ $ \ mathbb { p } \ left [ \ mathcal { a } _ n \ text { synchronizes } \ right ] = 1 - o \ left ( \ frac { 1 } { n } \ right ). ... | arxiv:1906.02602 |
we propose a novel approach for answering and explaining multiple - choice science questions by reasoning on grounding and abstract inference chains. this paper frames question answering as an abductive reasoning problem, constructing plausible explanations for each choice and then selecting the candidate with the best... | arxiv:2010.13128 |
this paper is a brief report to our submission to the vipriors object detection challenge. object detection has attracted many researchers ' attention for its full application, but it is still a challenging task. in this paper, we study analysis the characteristics of the data, and an effective data enhancement method ... | arxiv:2007.08170 |
, we find that over a broad redshift range, the outflow strength strongly depends on the main - sequence offset at the respective redshifts rather than simply the sfr. | arxiv:2010.10540 |
to constrain the equation of state of super - nuclear density matter and probe the interior composition of the x - ray pulsar in sax j1808. 4 - 3658. in our estimation, we consider both its persistent 2. 49 ms x - ray pulsations discovered by wijnands and van der klis from using the rossi x - ray timing explorer, which... | arxiv:0801.4123 |
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