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in this paper, optical and electronic properties of diamond shaped graphene quantum dots ( dqds ) have been studied by employing large - scale electron - correlated calculations. the computations have been performed using the \ pi - electron pariser - parr - pople model hamiltonian, which incorporates long - range coul... | arxiv:1501.06041 |
subensemble acceptance method ( sam ) [ 1, 2 ] is an essential link between measured event - by - event fluctuations and their grand canonical theoretical predictions such as lattice qcd. the method allows quantifying the global conservation law effects in fluctuations. in its basic formulation, sam requires a sufficie... | arxiv:2312.17685 |
we find that the temperature dependence of the electron paramagnetic resonance ( epr ) linewidth observed in bi $ _ { 0. 5 } $ sr $ _ { 0. 5 } $ mn $ _ { 0. 9 } $ cr $ _ { 0. 1 } $ o $ _ 3 $ ( bsmco ), as well as in certain other 3 - dimensional manganites undergoing antiferromagnetic transitions is satisfactorily desc... | arxiv:1809.07635 |
quantum teleportation plays a key role in modern quantum technologies. thus, it is of much interest to generate alternative approaches or representations aimed at allowing us a better understanding of the physics involved in the process from different perspectives. with this purpose, here an approach based on graph the... | arxiv:2007.02882 |
in support of art investigation, we propose a new source sepa - ration method that unmixes a single x - ray scan acquired from double - sided paintings. unlike prior source separation meth - ods, which are based on statistical or structural incoherence of the sources, we use visual images taken from the front - and bac... | arxiv:1605.06474 |
we have developed and tested a zinc superconducting heat switch suitable for magnetic refrigeration and calorimetric experiments at sub - millikevin ( sub - mk ) temperatures. the specific application here is an adiabatic demagnetization refrigerator with two prni $ _ { 5 } $ nuclear stages, which can keep a temperatur... | arxiv:2209.08260 |
we present the microscopic equation of growing interface with quenched noise for the tang and leschhorn model [ l. h. tang and h. leschhorn, phys. rev. a { \ bf 45 }, r8309 ( 1992 ) ]. the evolution equation for the height, the mean height, and the roughness are reached in a simple way. an equation for the interface ac... | arxiv:cond-mat/9903094 |
we propose a flexible scheme based on three coupled optical microcavities which permits to achieve stable oscillations in the microwave range, the frequency of which depends only on the cavity coupling rates. we find the different dynamical regimes ( soft and hard excitation ) to affect the oscillation intensity but no... | arxiv:1509.03598 |
simultaneous multislice ( sms ) imaging is a powerful technique for accelerating magnetic resonance imaging ( mri ) acquisitions. however, sms reconstruction remains challenging due to complex signal interactions between and within the excited slices. in this study, we introduce roger, a robust sms mri reconstruction m... | arxiv:2407.21600 |
we derive the equation of state of a bose gas with contact interactions using relativistic quantum field theory. the calculation accounts for both thermal and quantum corrections up to 1 - loop order. we work in the hartree - fock - bogoliubov approximation and follow yukalov ' s prescription of introducing two chemica... | arxiv:2204.02423 |
the aim of this paper is to determine a bound of the dimension of an irreducible component of the hilbert scheme of the moduli space of torsion - free sheaves on surfaces. let $ x $ be a non - singular irreducible complex surface and let $ e $ be a vector bundle of rank $ n $ on $ x $. we use the $ m $ - elementary tra... | arxiv:2202.11143 |
we study hypermagnetic helicity and lepton asymmetry evolution in plasma of the early universe before the electroweak phase transition ( ewpt ) accounting for chirality flip processes via inverse higgs decays and sphaleron transitions which violate the left lepton number and wash out the baryon asymmetry of the univers... | arxiv:1309.4302 |
we study semiflows generated via impulsive perturbations of lorenz flows. we prove that such semiflows admit a finite number of physical measures. moreover, if the impulsive perturbation is small enough, we show that the physical measures of the semiflows are close, in the weak * topology, to the unique physical measur... | arxiv:2403.10909 |
we argue that a complete description of quantum annealing ( qa ) implemented with continuous variables must take into account the non - adiabatic aharonov - anandan geometric phase that arises when the system hamiltonian changes during the anneal. we show that this geometric effect leads to the appearance of non - stoq... | arxiv:1701.07494 |
the abelian chern - simons theory is perturbed by introducing local gauge - invariant interaction terms depending on the curvature. the computation of the correlation function of two wilson lines for two smooth closed nonintersecting curves is reported up to four loops and is shown to be unaffected by radiative correct... | arxiv:hep-th/9902154 |
reinforcement learning is a growing field in ai with a lot of potential. intelligent behavior is learned automatically through trial and error in interaction with the environment. however, this learning process is often costly. using variational quantum circuits as function approximators potentially can reduce this cos... | arxiv:2304.13571 |
in this article we establish a vanishing theorem for singular liouville equation with quantized singular source. if a blowup sequence tends to infinity near a quantized singular source and the blowup solutions violate the spherical harnack inequality around the singular source ( non - simple blow - ups ), the laplacian... | arxiv:2202.10825 |
we study the boltzmann equation with elastic point - like scalar interactions in two different versions of the the classical approximation. although solving numerically the boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these ... | arxiv:1409.0701 |
we investigate andreev transport through a quantum dot attached to two external ferromagnetic leads and one superconducting electrode. the transport properties of the system are studied by means of the real - time diagrammatic technique in the sequential tunneling regime. to distinguish various contributions to andreev... | arxiv:1807.08850 |
shocks and turbulence are ubiquitous phenomena, responsible for particle acceleration to very high energies in a large collection of astrophysical systems. using self - consistent, hybrid - kinetic simulations with and without pre - existing turbulence, we study the transition of a shock from ` ` laminar ' ' to turbule... | arxiv:2412.08404 |
we consider a class of continuous time markov chains on a compact metric space that admit an invariant measure strictly positive on open sets together with absorbing states. we prove the joint large deviation principle for the empirical measure and flow. due to the lack of uniform ergodicity, the zero level set of the ... | arxiv:1310.5829 |
graphene is known to possess strong optical nonlinearity. its nonlinear response can be further enhanced by graphene plasmons. here, we report a novel nonlinear electro - absorption effect observed in nanostructured graphene due to excitation of graphene plasmons. we experimentally detect and theoretically explain enha... | arxiv:1705.09739 |
using helioseismic holography strong evidence is presented that the phase ( or equivalent travel - time ) of helioseismic signatures in dopplergrams within sunspots depend upon the line - of - sight angle in the plane containing the magnetic field and vertical directions. this is shown for the velocity signal in the pe... | arxiv:1002.2379 |
recent advances in deep learning have achieved impressive gains in classification accuracy on a variety of types of data, including images and text. despite these gains, however, concerns have been raised about the calibration, robustness, and interpretability of these models. in this paper we propose a simple way to m... | arxiv:1811.02579 |
phase structure and phase transitions in dense qcd are studied using the cornwall - jackiw - tomboulis ( cjt ) potential in the improved ladder approximation. the gap function, the condensation energy and the structure of cooper pairs are investigated at finite temperature and density. due to strong coupling effects at... | arxiv:hep-ph/0401247 |
in this paper, we study the effects of vorticity on the qcd phase transition using the linear sigma model coupled to quarks. by going beyond the mean - field approximation and incorporating screening effects via ring diagrams, we explore the chiral symmetry restoration in extreme conditions, such as high temperatures, ... | arxiv:2410.17874 |
we initiate a systematic study of the class of theories without the tree property of the second kind - ntp2. most importantly, we show : the burden is " sub - multiplicative " in arbitrary theories ( in particular, if a theory has tp2 then there is a formula with a single variable witnessing this ) ; ntp2 is equivalent... | arxiv:1204.0832 |
the new definition of the energy dependence for the level density parameter including collective effects depends strongly on the semi - classical approach. for this method, defining an accurate single - particle potential is of great importance. the effect of the single - particle potential terms, which are central, sp... | arxiv:1403.4375 |
we introduce a deep ( 670 ks ) x - ray survey of the sn1006 remnant from chandra, plus a deep h - alpha image from the 4m telescope at ctio. comparison with chandra images from 2003 gives the first measurement of x - ray proper motions around the entire rim. we find that the expansion velocity varies significantly with... | arxiv:1312.3367 |
allowed $ \ beta ^ + $ branches of very proton - rich $ fp $ shell $ tz = - 2 $ nuclei at the proton drip - line are calculated in the full fp valence space. the $ \ beta ^ + $ decay half - lives calculated with the standard quenching factor ( $ g ^ { eff } _ { a } / g _ { a } $ ) = 0. 74 are in good agreement with exi... | arxiv:nucl-th/9712065 |
this study focuses on the automatic generation by the software exgas of kinetic models for the oxidation of large methyl esters using a single set of kinetic parameters. the obtained models allow to well reproduce the oxidation of n - decane / methyl palmitate mixture in a jet - stirred reactor. this paper also present... | arxiv:0904.3536 |
in clinical and biomedical research, multiple high - dimensional datasets are nowadays routinely collected from omics and imaging devices. multivariate methods, such as canonical correlation analysis ( cca ), integrate two ( or more ) datasets to discover and understand underlying biological mechanisms. for an explorat... | arxiv:2310.02169 |
researchers seek methods to levitate matter for a wide variety of purposes, ranging from exploring fundamental problems in science, through to developing new sensors and mechanical actuators. many levitation techniques require active driving and most can only be applied to objects smaller than a few micrometers. diamag... | arxiv:2211.08764 |
we develop a physically motivated, spherical corona model to investigate the frequency - dependent time lags in agn. the model includes the effects of compton up - scattering between the disc uv photons and coronal electrons, and the subsequent x - ray reverberation from the disc. the time lags are associated with the ... | arxiv:1905.03683 |
we present results from alexa speech teams on semi - supervised learning ( ssl ) of acoustic models ( am ) with experiments spanning over 3000 hours of gpu time, making our study one of the largest of its kind. we discuss ssl for ams in a small footprint setting, showing that a smaller capacity model trained with 1 mil... | arxiv:2106.06126 |
despite their tremendous successes, convolutional neural networks ( cnns ) incur high computational / storage costs and are vulnerable to adversarial perturbations. recent works on robust model compression address these challenges by combining model compression techniques with adversarial training. but these methods ar... | arxiv:2110.14871 |
in [ 7 ], higashitani, kummer, and micha { \ l } ek pose a conjecture about the symmetric edge polytopes of complete multipartite graphs and confirm it for a number of families in the bipartite case. we confirm that conjecture for a number of new classes following the authors ' methods and we present a more general res... | arxiv:2404.02136 |
given two homogeneous spaces of the form g _ 1 / k and g _ 2 / k, where g _ 1 and g _ 2 are compact simple lie groups, we study the existence problem for g _ 1xg _ 2 - invariant einstein metrics on the homogeneous space m = g _ 1xg _ 2 / k. for the large subclass c of spaces having three pairwise inequivalent isotropy ... | arxiv:2408.00456 |
relaxations of localized over - density in a plane transverse to the magnetic field are numericallyinvestigated under the effect of drift - wave and interchange drives in sol conditions. such a controlleddeparture from thermodynamic equilibrium allows the investigation of fundamental processesat play in cross - field t... | arxiv:2406.03277 |
messaging systems built on mesh networks consisting of smartphones communicating over bluetooth have been used by protesters around the world after governments have disrupted internet connectivity. unfortunately, existing systems have been shown to be insecure ; most concerningly by not adequately hiding metadata. this... | arxiv:2207.04145 |
it is well known that the ring of polynomial invariants of a reductive group is finitely generated. however, it is difficult to give strong upper bounds on the degrees of the generators, especially over fields of positive characteristic. in this paper, we make use of the theory of good filtrations along with recent res... | arxiv:1610.06617 |
we use computational approaches to explore the role of a high - refractive - index dielectric tio2 grating with deep subwavelength thickness on insb as a tunable coupler for thz surface plasmons. we find a series of resonances as the grating couples a normally - incident thz wave to standing surface plasmon waves on bo... | arxiv:1709.08812 |
if the first stars formed soon after decoupling of baryons from the thermal cosmic background radiation ( cbr ), the radiation may have been last scattered in a cloudy plasma. we discuss the resulting small - scale anisotropy of the cbr in the limit where the plasma clouds are small compared to the mean distance betwee... | arxiv:astro-ph/9804260 |
the classical structure - function ( sf ) method in fully developed turbulence or for scaling processes in general is influenced by large - scale energetic structures, known as infrared effect. therefore, the extracted scaling exponents $ \ zeta ( n ) $ might be biased due to this effect. in this paper, a detrended str... | arxiv:1402.0371 |
in this work we characterize those shift spaces which can support a 1 - block quasi - group operation and show the analogous of kitchens result : any such shift is conjugated to a product of a full shift with a finite shift. moreover, we prove that every expansive automorphism on a compact zero - dimensional quasi - gr... | arxiv:1401.3263 |
the admissibility condition usually used to define the topological charge in lattice gauge theory is incompatible with a positive transfer matrix. | arxiv:hep-lat/0409017 |
our paper deals with a collection of networks on a common set of nodes, where some of the networks are associated with responses. assuming that the networks correspond to points on a one - dimensional manifold in a higher dimensional ambient space, we propose an algorithm to consistently predict the response at an unla... | arxiv:2405.03225 |
multi - source remote sensing data classification has emerged as a prominent research topic with the advancement of various sensors. existing multi - source data classification methods are susceptible to irrelevant information interference during multi - source feature extraction and fusion. to solve this issue, we pro... | arxiv:2406.01245 |
we show that the simplest of existing molecules - - closed - shell diatomics not interacting with one another - - host topological charges when driven by periodic far - off - resonant laser pulses. a periodically kicked molecular rotor can be mapped onto a ' ' crystalline ' ' lattice in angular momentum space. this all... | arxiv:2206.07067 |
we present an algorithm to obtain the maximum likelihood estimates of the correlation parameters of elliptical copulas. previously existing methods for this task were either fast but only approximate or exact but very time - consuming, especially for high - dimensional problems. our proposal combines the advantages of ... | arxiv:1412.6316 |
in order to compute the log - likelihood for high dimensional spatial gaussian models, it is necessary to compute the determinant of the large, sparse, symmetric positive definite precision matrix, q. traditional methods for evaluating the log - likelihood for very large models may fail due to the massive memory requir... | arxiv:1105.5256 |
due to excessive need for faster propagations of signals and necessity to reduce number of measurements and rapidly increase efficiency, new sensing theories have been proposed. conventional sampling approaches that follow shannon - nyquist theorem require the sampling rate to be at least twice the maximum frequency of... | arxiv:1902.07309 |
the recently introduced coder based on region - adaptive hierarchical transform ( raht ) for the compression of point clouds attributes, was shown to have a performance competitive with the state - of - the - art, while being much less complex. in the paper " compression of 3d point clouds using a region - adaptive hie... | arxiv:1805.09146 |
space photometric time series of the most massive members of the young open cluster ngc 2264 allow us to study their different sources of variability down to the millimagnitude level and permits a search for slowly pulsating b ( spb ) type pulsation among objects that are only a few million years old. our goal is to co... | arxiv:1703.06456 |
the equations governing general relativistic, spherically symmetric, hydrodynamic accretion of polytropic fluid onto black holes are solved in schwarzschild metric to investigate some of the transonic properties of the flow. only stationary solutions are discussed. for such accretion, it has been shown that real physic... | arxiv:astro-ph/0211619 |
a compact liquid organic neutron spectrometer ( clons ) based on a single ne213 liquid scintillator ( 5 cm diam. x 5 cm ) is described. the spectrometer is designed to measure neutron fluence spectra over the energy range 2 - 200 mev and is suitable for use in neutron fields having any type of time structure. neutron f... | arxiv:physics/0703211 |
we performed a second - order spontaneous parametric down - conversion ( spdc ) experiment in a type ii phase - matched ktiopo4 crystal pumped at 532 nm giving birth to a signal beam at 1037 nm and an idler one at 1092 nm along the x - axis of the crystal. three pump sources have been used : in the continuous - wave, n... | arxiv:2502.04815 |
in this work we treat the unsourced random access problem on a rayleigh block - fading awgn channel with multiple receive antennas. specifically, we consider the slowly fading scenario where the coherence block - length is large compared to the number of active users and the message can be transmitted in one coherence ... | arxiv:2109.10108 |
we discuss the recent interpretation of quark distribution functions in the plane transverse to the light - cone direction. such a mapping is model independent and allows one to build multidimensional pictures of the hadron and to develop a semi - classical intuition of the quark dynamics. we comment briefly the result... | arxiv:1008.1133 |
the spin seebeck effect ( sse ) signal of magnon polarons in bulk - y3fe5o12 ( yig ) / pt heterostructures is found to drastically change as a function of temperature. it appears as a dip in the total sse signal at low temperatures, but as the temperature increases, the dip gradually decreases before turning to a peak.... | arxiv:2112.04621 |
this is the first in a series of papers on standard monomial theory and invariant theory of arc spaces. for any algebraically closed field $ k $, we construct a standard monomial basis for the arc space of the determinantal variety over $ k $. as an application, we prove the arc space analogue of the first and second f... | arxiv:2108.06864 |
we summarize recent developments at the interface of quantum gravity and quantum information, and discuss applications to the quantum geometry of space in loop quantum gravity. in particular, we describe the notions of link entanglement, intertwiner entanglement, and boundary spin entanglement in a spin - network state... | arxiv:2302.05922 |
malaria, a life - threatening disease, infects millions of people every year throughout the world demanding faster diagnosis for proper treatment before any damages occur. in this paper, an end - to - end deep learning - based approach is proposed for faster diagnosis of malaria from thin blood smear images by making e... | arxiv:2012.05350 |
we compute the baryonic screening masses with nucleon quantum numbers and its negative parity partner in thermal qcd with $ n _ f = 3 $ massless quarks for a wide range of temperatures, from $ t \ sim 1 $ gev up to $ \ sim 160 $ gev. the computation is performed by monte carlo simulations of lattice qcd with $ o ( a ) ... | arxiv:2405.04182 |
uniaxial pressure applied in the b crystallographic direction perpendicular to spontaneous magnetization in heavy fermion ferromagnet urhge strongly stimulates superconductivity in this compound. the phenomenological approach allows point out two mechanisms of superconducting temperature raising. they originates from s... | arxiv:1706.00354 |
some natural inequalities related to rearrangement in matrix products can also be regarded as extensions of classical inequalities for sequences or integrals. in particular, we show matrix versions of chebyshev and kantorovich type inequalities. the matrix approach may also provide simplified proofs and new results for... | arxiv:math/0601543 |
sub - millimeter emission lines are important tracers of the cold gas and ionized environments of galaxies and are the targets for future line intensity mapping surveys. physics - based simulations that predict multiple emission lines arising from different phases of the interstellar medium are crucial for constraining... | arxiv:2009.11933 |
we define semi - simple strata, semi - simple characters and semi - simple types in g _ 2 ( f ). with some of these types we construct supercuspidal representations of this group. | arxiv:1104.1333 |
we examine vortices in abelian chern - simons theory coupled to a relativistic scalar field with a chemical potential for particle number or u ( 1 ) charge. the gauss constraint requires chemical potential for the local symmetry to be accompanied by a constant background charge density / magnetic field. focussing atten... | arxiv:1912.11321 |
we derive a large deviation principle for the density profile of occupation times of random interlacements at a fixed level in a large box of z ^ d, with d bigger or equal to 3. as an application, we analyze the asymptotic behavior of the probability that atypically high values of the density profile insulate a macrosc... | arxiv:1304.7477 |
this research found that when an acidic solution with a low surface tension spread on the surface of a glycerol solution mixed with milk, a star shaped pattern was spontaneously formed on the surface in the horizontal plane during the spreading process. we investigated the emergence of the star shaped pattern owing to ... | arxiv:2008.08232 |
we study variants of hierarchical modular network models suggested by kaiser and hilgetag [ frontiers in neuroinformatics, 4 ( 2010 ) 8 ] to model functional brain connectivity, using extensive simulations and quenched mean - field theory ( qmf ), focusing on structures with a connection probability that decays exponen... | arxiv:1503.06307 |
n - type doping in si by shallow impurities, such as p, as and sb, exhibits an intrinsic limit due to the fermi - level pinning via defect complexes at high doping concentrations. here we demonstrate that doping si with the chalcogen te by non - equilibrium processing, a deep double donor, can exceed this limit and yie... | arxiv:1809.06055 |
magnetic helicity plays a tremendously important role when it is different from zero on average. most notably, it leads to the phenomenon of an inverse cascade. here, we consider decaying magnetohydrodynamic ( mhd ) turbulence as well as some less common examples of magnetic evolution under the hall effect and ambipola... | arxiv:2305.08769 |
- 6980 - 087 - 5. hayashi, takao ( 1997 ), " aryabhata ' s rule and table of sine - differences ", historia mathematica, 24 ( 4 ) : 396 – 406, doi : 10. 1006 / hmat. 1997. 2160. hayashi, takao ( 2003 ), " indian mathematics ", in grattan - guinness, ivor ( ed. ), companion encyclopedia of the history and philosophy of ... | https://en.wikipedia.org/wiki/Indian_mathematics |
we present spherically symmetric boson stars as black hole mimickers based on the power spectrum of a simple accretion disk model. the free parameters of the boson star are the mass of the boson and the fourth order self - interaction coefficient in the scalar field potential. we show that even if the mass of the boson... | arxiv:1009.1250 |
in this paper, we review the computational aspects of a multiscale dissipative particle dynamics model for complex fluid simulations based on the feature - rich geometry of the voronoi tessellation. the geometrical features of the model are critical since the mesh is directly connected to the physics by the interpretat... | arxiv:cond-mat/0301378 |
we investigate the performance and accuracy of digital quantum algorithms for the study of static and dynamic properties of the fermionic hubbard model at half - filling with next - nearest neighbour hopping terms. we provide quantum circuits to perform ground and excited states calculations, via the variational quantu... | arxiv:2410.07789 |
we present a comprehensive analysis of the $ \ gamma w $ interference radiative correction to the neutron $ \ beta $ - decay matrix element. within a dispersion relations approach, we compute the axial - vector part of the $ \ gamma w $ box amplitude $ \ box ^ { \ gamma w } _ { a } $ in terms of the isoscalar part of t... | arxiv:2012.01580 |
a hierarchical approach to the construction of compound distributions for process - induced faults in ic manufacture is proposed. within this framework, the negative binomial distribution is treated as level - 1 models. the hierarchical approach to fault distribution offers an integrated picture of how fault density va... | arxiv:physics/0310012 |
computational analysis methods including machine learning have a significant impact in the fields of genomics and medicine. high - throughput gene expression analysis methods such as microarray technology and rna sequencing produce enormous amounts of data. traditionally, statistical methods are used for comparative an... | arxiv:2202.02958 |
the study of the x - ray emission from massive binaries constitutes a relevant approach to investigate shock physics. the case of short period binaries may turn out to be quite challenging, especially in very asymmetric systems where the primary wind may overwhelm that of the secondary in the wind interaction. our obje... | arxiv:2410.18827 |
the extention of the integrable ansatz of pure einstein gravity to supergravity is completed. the procedure of construction the exact supergravitational solitonic solutions is described. | arxiv:1505.01310 |
thin surface layer of the material is heated. applications include hardening, annealing, tempering, texturing, and polishing ( with argon gas present ). if the electron beam is used to cut a shallow trough in the surface, repeatedly moving it horizontally along the trough at high speeds creates a small pile of ejected ... | https://en.wikipedia.org/wiki/Electron-beam_technology |
while graph neural networks ( gnns ) have been successfully leveraged for learning on graph - structured data across domains, several potential pitfalls have been described recently. those include the inability to accurately leverage information encoded in long - range connections ( over - squashing ), as well as diffi... | arxiv:2309.09384 |
let $ \ gamma $ be a metric graph having a linear system $ g ^ r _ { 2r } $ for some $ 2 \ leq r \ leq g - 2 $ then $ \ gamma $ has a linear system $ g ^ 1 _ 2 $. this is similar to the well - known clifford ' s theorem from the theory of linear systems on smooth projective curves. | arxiv:1304.6101 |
radial velocities of fifteen double - mode bulge rr lyrae ( rr01 ) stars are presented, six of which belong to a compact group of rr01 stars in pulsation space, with the ratio of first - overtone period to fundamental - mode period, p _ { fo } / p _ { f } ~ 0. 74, and p _ { f } ~ 0. 44. it has been suggested that these... | arxiv:1905.03256 |
background : species abundance distributions in chemical reaction network models cannot usually be computed analytically. instead, stochas - tic simulation algorithms allow sample from the the system configuration. although many algorithms have been described, no fast implementation has been provided for { \ tau } - le... | arxiv:1608.07058 |
we present new spectroscopic observations of the he i $ \ lambda $ 10830 line in r coronae borealis ( rcb ) stars which provide the first strong evidence that most, if not all, rcb stars have winds. it has long been suggested that when dust forms around an rcb star, radiation pressure accelerates the dust away from the... | arxiv:astro-ph/0306099 |
conclusive crystal structure determination of the high pressure phases of hydrogen remains elusive due to lack of core electrons and vanishing wave vectors, rendering standard high - pressure experimental methods moot. ab - initio dft calculations have shown that structural polymorphism might be solely resolvable using... | arxiv:2407.19368 |
a classic result of erd \ h { o } s, gy \ ' arf \ ' as and pyber states that for every coloring of the edges of $ k _ n $ with $ r $ colors, there is a cover of its vertex set by at most $ f ( r ) = o ( r ^ 2 \ log r ) $ vertex - disjoint monochromatic cycles. in particular, the minimum number of such covering cycles d... | arxiv:1712.03145 |
by conducting a bibliometric analysis on 4, 869 publications in current psychology from 2013 to 2022, this paper examined the annual publications and annual citations, as well as the leading institutions, countries, and keywords. citespace, vosviewer and scimago graphica were utilized for visualization analysis. on one... | arxiv:2407.13495 |
void size function ( vsf ) contains information of the cosmic large - scale structure ( lss ), and can be used to derive the properties of dark energy and dark matter. we predict the vsfs measured from the spectroscopic galaxy survey operated by the china space station telescope ( csst ), and study the strength of cosm... | arxiv:2402.05492 |
this supplement provides supporting material for arxiv : 1602. 08492. we briefly summarize past electromagnetic ( em ) follow - up efforts as well as the organization and policy of the current em follow - up program. we compare the four probability sky maps produced for the gravitational - wave transient gw150914, and ... | arxiv:1604.07864 |
in this paper, we extend a uniformity result of dimitrov - gao - habegger to dimension two and use it to get a uniform bound on the set of all quadratic points for non - hyperelliptic non - bielliptic curves in terms of the mordell - weil rank. | arxiv:2105.15090 |
as a consequence of their work, bruce c. berndt and ronald j. evans in 1977 and larry joel goldstein and michael razar in 1976 obtained a formula for the square of the class number of an imaginary quadratic number field in terms of dedekind sums. here we focus only on this formula and give a new short and simple proof ... | arxiv:2303.14000 |
data - collapse is a way of establishing scaling and extracting associated exponents in problems showing self - similar or self - affine characteristics as e. g. in equilibrium or non - equilibrium phase transitions, in critical phases, in dynamics of complex systems and many others. we propose a measure to quantify th... | arxiv:cond-mat/0102515 |
the number $ n _ s $ of clusters ( per site ) of size $ s $, a central quantity in percolation theory, displays at criticality an algebraic scaling behavior of the form $ n _ s \ simeq s ^ { - \ tau } \, a \, ( 1 + b s ^ { - \ omega } ) $. for the fortuin - - kasteleyn representation of the $ q $ - state potts model in... | arxiv:2411.12646 |
in this paper, we study the trade - offs of different inference approaches for bayesian matrix factorisation methods, which are commonly used for predicting missing values, and for finding patterns in the data. in particular, we consider bayesian nonnegative variants of matrix factorisation and tri - factorisation, and... | arxiv:1707.05147 |
or in some configuration space. for example, a conic section is degenerate if and only if it has singular points ( e. g., point, line, intersecting lines ). = = in geometry = = = = = conic section = = = a degenerate conic is a conic section ( a second - degree plane curve, defined by a polynomial equation of degree two... | https://en.wikipedia.org/wiki/Degeneracy_(mathematics) |
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