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we present an integration of a safe c dialect, checked c, for the internet of things operating system riot. we utilize this integration to convert parts of the riot network stack to checked c, thereby achieving spatial memory safety in these code parts. similar to prior research done on iot operating systems and safe c... | arxiv:2005.09516 |
the covid - 19 pandemic has forced policy makers to decree urgent confinements to stop a rapid and massive contagion. however, after that stage, societies are being forced to find an equilibrium between the need to reduce contagion rates and the need to reopen their economies. the experience hitherto lived has provided... | arxiv:2009.00660 |
we study the vacuum interaction of a scalar field and two concentric spheres defined by a singular potential on their surfaces. the potential is a linear combination of the dirac - $ \ delta $ and its derivative. the presence of the delta prime term in the potential causes that it behaves differently when it is seen fr... | arxiv:2009.03785 |
( abridged ) we present new spitzer, ukirt and mmt observations of the blue compact dwarf galaxy ( bcd ) mrk 996, with an oxygen abundance of 12 + log ( o / h ) = 8. 0. this galaxy has the peculiarity of possessing an extraordinarily dense nuclear star - forming region, with a central density of ~ 10 ^ 6 cm ^ { - 3 }. ... | arxiv:0809.3082 |
to elucidate the atomistic origin of volume relaxation in soda - lime silicate glass annealed below the glass transition temperature ( tg ), the experimental and calculated raman spectra were compared. by decomposing the calculated raman spectra into a specific group of atoms, we found that the raman peak at 1050 cm - ... | arxiv:2309.15591 |
sets of solutions to finite systems of equations in a free group, are equivalent to sets of homomorphisms from a fixed f. p. group into a free group. the latter can be encoded in a diagram, the construction of which is valid also for f. g. groups. the diagram is known to be canonical for a fixed f. g. group with a fixe... | arxiv:1802.02431 |
in this review i will describe progress that has been made in determining masses of galaxy clusters using ` weak lensing ' and how this technique my be applied in the future to determine the dark matter distribution both on supercluster scales and on the scale of galaxy haloes. | arxiv:astro-ph/9509019 |
localized static solutions of the 2d - o ( 3 ) model are investigated in a representation with the 3 - vector field $ \ vec phi $ split into the unit vector $ \ hat phi $ and the modulus $ \ phi $. as in the nonlinear version of the model this allows for the definition of a topological winding number $ b $, and for the... | arxiv:hep-ph/9905473 |
the outbursts of low mass x - ray binaries are prolonged relative to those of dwarf nova cataclysmic variables as a consequence of x - ray irradiation of the disc. we show that the time - scale of the decay light curve and its luminosity at a characteristic time are linked to the radius of the accretion disc. hence a g... | arxiv:astro-ph/0610108 |
we use the canonical coset parameterization and provide a formula with the unitary part of the bures measure for non - degenerate systems in terms of the product of even euclidean balls. this formula is shown to be consistent with the sampling of random states through the generation of random unitary matrices. | arxiv:0910.2910 |
matrix profile has been recently proposed as a promising technique to the problem of all - pairs - similarity search on time series. efficient algorithms have been proposed for computing it, e. g., stamp, stomp and scrimp + +. all these algorithms use the z - normalized euclidean distance to measure the distance betwee... | arxiv:1901.05708 |
we have statistically analyzed a set of 115 low frequency ( deca - hectometer wavelengths range ) type ii and type iii bursts associated with major solar energetic particle ( sep : ep > 10 mev ) events and their solar causes such as solar flares and coronal mass ejections ( cmes ) observed from 1997 to 2014. we classif... | arxiv:2007.05726 |
future wireless networks will need to improve adaptive resource allocation and decision - making to handle the increasing number of intelligent devices. unmanned aerial vehicles ( uavs ) are being explored for their potential in real - time decision - making. moreover, cognitive non - orthogonal multiple access ( cogni... | arxiv:2310.11070 |
it has recently been conjectured that neural network solution sets reachable via stochastic gradient descent ( sgd ) are convex, considering permutation invariances ( entezari et al., 2022 ). this means that a linear path can connect two independent solutions with low loss, given the weights of one of the models are ap... | arxiv:2403.07968 |
we analyze the asymptotic behavior of solutions to wave equations with strong damping terms. if the initial data belong to suitable weighted $ l ^ 1 $ spaces, lower bounds for the difference between the solutions and the leading terms in the fourier space are obtained, which implies the optimality of expanding methods ... | arxiv:1810.09114 |
ensemble clustering is a fundamental problem in the machine learning field, combining multiple base clusterings into a better clustering result. however, most of the existing methods are unsuitable for large - scale ensemble clustering tasks due to the efficiency bottleneck. in this paper, we propose a large - scale sp... | arxiv:2106.09852 |
we search for persistent and quasi - periodic release events of streamer blobs during 2007 with the large angle spectrometric coronagraph on the \ textit { solar and heliospheric observatory } and assess the velocity of the slow solar wind along the plasma sheet above the corresponding streamer by measuring the dynamic... | arxiv:0907.0819 |
recently, more and more research has focused on using graph neural networks ( gnn ) to solve the graph similarity computation problem ( gsc ), i. e., computing the graph edit distance ( ged ) between two graphs. these methods treat gsc as an end - to - end learnable task, and the core of their architecture is the featu... | arxiv:2308.13871 |
we propose a bayesian framework for the received - signal - strength - based cooperative localization problem with unknown path loss exponent. our purpose is to infer the marginal posterior of each unknown parameter : the position or the path loss exponent. this probabilistic inference problem is solved using message p... | arxiv:1904.00715 |
we measured the transport properties and susceptibility of single crystals ca $ _ { 1 - x } $ la $ _ x $ fe $ _ 2 $ as $ _ 2 $ ( x = 0, 0. 05, 0. 1, 0. 15, 0. 19 and 0. 25 ). large in - plane resistivity anisotropy similar to that in co - doped 122 iron - pnictides is observed although no transition metals were introdu... | arxiv:1202.3589 |
objective : a novel ecg classification algorithm is proposed for continuous cardiac monitoring on wearable devices with limited processing capacity. methods : the proposed solution employs a novel architecture consisting of wavelet transform and multiple lstm recurrent neural networks. results : experimental evaluation... | arxiv:1812.04818 |
in the unit - cost comparison model, a black box takes an input two items and outputs the result of the comparison. problems like sorting and searching have been studied in this model, and it has been generalized to include the concept of priced information, where different pairs of items ( say database records ) have ... | arxiv:2004.13197 |
the task of open - vocabulary object - centric image retrieval involves the retrieval of images containing a specified object of interest, delineated by an open - set text query. as working on large image datasets becomes standard, solving this task efficiently has gained significant practical importance. applications ... | arxiv:2309.14999 |
an experimental study is presented, about transitions between non - equilibrium steady states ( ness ) in a dissipative medium. the core device is a small rotating blade that imposes cycles of increasing and decreasing forcings to a granular gas, shaken independently. the velocity of this blade is measured, subject to ... | arxiv:1208.4039 |
the weak decay of the kaon to two pions is studied within the njl model. using the standard effective weak hamiltonian, both the decay amplitude arising from an intermediate state \ sigma - meson and the direct decay amplitude are calculated. the effect of final state interactions is also included. when the matching sc... | arxiv:1409.2639 |
in a previous work [ j. chem. phys. 155, 244111 ( 2021 ) ], we found counterexamples to the fundamental hohenberg - kohn theorem from density - functional theory in finite - lattice systems represented by graphs. here, we demonstrate that this only occurs at very peculiar and rare densities, those where density sets ar... | arxiv:2206.12366 |
skew polynomials are a class of non - commutative polynomials that have several applications in computer science, coding theory and cryptography. in particular, skew polynomials can be used to construct and decode evaluation codes in several metrics, like e. g. the hamming, rank, sum - rank and skew metric. we propose ... | arxiv:2207.01319 |
the renormalization paradigm for low - dimensional dynamical systems is that of hyperbolic horseshoe dynamics. does this paradigm survive a transition to more physically relevant systems in higher dimensions? this article addresses this question in the context of lorenz dynamics which originates in homoclinic bifurcati... | arxiv:1805.01226 |
we characterize the vertices belonging to all minimum dominating sets, to some minimum dominating sets but not all, and to no minimum dominating set. we refine this characterization for some well studied sub - classes of graphs : chordal, claw - free, triangle - free. also we exhibit some graphs answering to some open ... | arxiv:1909.02843 |
functional relations are proposed for transfer matrices of solvable vertex models associated with the twisted quantum affine algebras $ u _ q ( x ^ { ( \ kappa ) } _ n ) $ where $ x ^ { ( \ kappa ) } _ n = a ^ { ( 2 ) } _ n, d ^ { ( 2 ) } _ n, e ^ { ( 2 ) } _ 6 $ and $ d ^ { ( 3 ) } _ 4 $. their solutions are obtained ... | arxiv:hep-th/9408135 |
for source sequences of length l symbols we proposed to use a more realistic value to the usual benchmark of number of code letters by source letters. our idea is based on a quantifier of information fluctuation of a source, f ( u ), which corresponds to the second central moment of the random variable that measures th... | arxiv:1807.02603 |
we study the propagation of light in a three - dimensional double - periodic ag / tio2 multilayer metamaterial composed of coupled plasmonic waveguides operating in the visible and uv spectral range. for these frequencies, light propagation in the plane of the waveguides is described by a negative phase velocity, while... | arxiv:1404.4707 |
in this paper we consider the influence of collisional fluctuations on the mollow spectra of resonance fluorescence ( rf ). the fluctuations are taken into account by a simple shift of the constant detuning, involved in a set of optical bloch equations by collision frequency noise which is modelled by a two - step rand... | arxiv:1312.0112 |
satellite imagery is widely used in many application sectors, including agriculture, navigation, and urban planning. frequently, satellite imagery involves both large numbers of images as well as high pixel counts, making satellite datasets computationally expensive to analyze. recent approaches to satellite image anal... | arxiv:2105.12633 |
this article discusses two versions of elliptic equations obtained from a system of equations describing a rational cuboid. analysis of elliptic equations shows that they are equivalent, and that there are rational points on the elliptic curves, but they do not belong to any right triangle with rational sides. | arxiv:2311.11949 |
human motion synthesis and editing are essential to many applications like film post - production. however, they often introduce artefacts in motions, which can be detrimental to the perceived realism. in particular, footskating is a frequent and disturbing artefact requiring foot contacts knowledge to be cleaned up. c... | arxiv:2208.04598 |
noise contrastive estimation ( nce ) is a powerful parameter estimation method for log - linear models, which avoids calculation of the partition function or its derivatives at each training step, a computationally demanding step in many cases. it is closely related to negative sampling methods, now widely used in nlp.... | arxiv:1809.01812 |
a wireless vapor sensor based upon the quantum capacitance effect in graphene is demonstrated. the sensor consists of a metal - oxide - graphene variable capacitor ( varactor ) coupled to an inductor, creating a resonant oscillator circuit. the resonant frequency is found to shift in proportion to water vapor concentra... | arxiv:1306.6940 |
strong light - matter interactions as realized in an optical cavity provide a tantalizing opportunity to control the properties of condensed matter systems. inspired by experimental advances in cavity quantum electrodynamics and the fabrication and control of two - dimensional magnets, we investigate the fate of a quan... | arxiv:2302.08528 |
we present the derivation of the hydrodynamic limit under eulerian scaling for a general class of one - dimensional interacting particle systems with two or more conservation laws. following yau ' s relative entropy method it turns out that in case of more than one conservation laws, in order that the system exhibit hy... | arxiv:math/0210426 |
spatio - temporal feature learning is of central importance for action recognition in videos. existing deep neural network models either learn spatial and temporal features independently ( c2d ) or jointly with unconstrained parameters ( c3d ). in this paper, we propose a novel neural operation which encodes spatio - t... | arxiv:1903.01197 |
molecular beam epitaxy of ge ( 111 ) thin films on epitaxial - gd2o3 / si ( 111 ) substrates is reported, along with a systematic investigation of the evolution of ge growth, and structural defects in the grown epilayer. while ge growth begins in the volmer - weber growth mode, the resultant islands coalesce within the... | arxiv:1801.02462 |
we determine the automorphism groups of koras - russell threefolds of the second kind. in particular we show that these groups are semi - direct products of two subgroups, one given by the multiplicative group and the other isomorphic to a polynomial ring in two variables with the addition law. we also show that these ... | arxiv:1507.06087 |
this article presents counter examples for three articles claiming that p = np. articles for which it applies are : moustapha diaby " p = np : linear programming formulation of the traveling salesman problem " and " equality of complexity classes p and np : linear programming formulation of the quadratic assignment pro... | arxiv:cs/0610125 |
##s cut. rojas accused a neighbour, but despite brutal interrogation, this neighbour would not confess to the crimes. inspector alvarez, a colleague of vucetich, went to the scene and found a bloody thumb mark on a door. when it was compared with rojas ' prints, it was found to be identical with her right thumb. she th... | https://en.wikipedia.org/wiki/Forensic_science |
we present local structural evidence for the existence of charge inhomogeneities at low temperature in underdoped and optimally doped la _ 2 - xsr _ xcuo _ 4. the inhomogeneities disappear for x > 0. 2. the evidence for the charge inhomogeneities comes from an anomalous increase in the in - plane cu - o bond length dis... | arxiv:cond-mat/0005032 |
the 50 \, kton \, ino - ical is a proposed underground high energy physics experiment at theni, india ( $ 9 ^ { \ circ } 57 ' n $, $ 77 ^ { \ circ } 16 ' e $ ) to study the neutrino oscillation parameters using atmospheric neutrinos. the resistive plate chamber ( rpc ) has been chosen as the active detector element for... | arxiv:1706.00901 |
liquid drops adhere to solid surfaces due to surface tension but can depin and run back along the surface due to wind or gravity forcing. this work develops a simple mechanistic model for depinning by combined gravity and high - reynolds - number wind forcing and tests that model using water drops on a roughened alumin... | arxiv:2009.04059 |
( abridged ) we present an analysis of a 10 - day continuous asca observation of the narrow - line seyfert 1 galaxy iras 13224 - 3809. the soft ( 0. 7 - 1. 3 kev ) and hard ( 1. 3 - 10 kev ) x - ray band light curves binned to 5000s reveal trough - to - peak variations by a factor > 25 and 20, respectively. the light c... | arxiv:astro-ph/0205114 |
a set of coupled time - dependent ginzburg - landau equations ( tdgl ) for superconductors of mixed d - and s - wave symmetry are derived microscopically from the gor ' kov equations by using the analytical continuation technique. the scattering effects due to impurities with both nonmagnetic and magnetic interactions ... | arxiv:cond-mat/9810206 |
in this article we explicitely construct transformation bewteen separable and flat coordinates for flat st \ " ackel systems and exploit the structre of these systems in flat coordinates. in the elliptic case these coordinates become well known generalized elliptical coordinates of jacobi. | arxiv:1406.2117 |
the rapid expansion of connected and autonomous vehicles ( cavs ) and the shift towards millimiter - wave ( mmwave ) frequencies offer unprecedented opportunities to enhance road safety and traffic efficiency. sidelink communication, enabling direct vehicle - to - vehicle ( v2v ) communications, play a pivotal role in ... | arxiv:2403.12059 |
the skew mean curvature flow ( smcf ) is a schr \ " odinger - type geometric flow canonically defined on a co - dimension two submanifold, which generalizes the famous vortex filament equation in fluid dynamics. in this paper, we prove the local existence and uniqueness of general dimensional smcf in euclidean spaces. | arxiv:1904.03822 |
recent advances in machine learning ( ml ) have expedited materials discovery and design. one significant challenge faced in ml for materials is the expansive combinatorial space of potential materials formed by diverse constituents and their flexible configurations. this complexity is particularly evident in molecular... | arxiv:2312.16473 |
imaging the structure of major fault zones is essential for our understanding of crustal deformations and their implications on seismic hazards. investigating such complex regions presents several issues, including the variation of seismic velocity due to the diversity of geological units and the cumulative damage caus... | arxiv:2303.06123 |
the variational autoencoder ( vae ) is a powerful generative model that can estimate the probability of a data point by using latent variables. in the vae, the posterior of the latent variable given the data point is regularized by the prior of the latent variable using kullback leibler ( kl ) divergence. although the ... | arxiv:1809.05284 |
economic model predictive control ( mpc ) dissipativity theory is central to discussing the stability of policies resulting from minimizing economic stage costs. in its current form, the dissipativity theory for economic mpc applies to problems based on deterministic dynamics or to very specific classes of stochastic p... | arxiv:2104.10997 |
in this paper we present a novel broadband approach for the extraction of dispersion curves of multiple time frequency overlapped dispersive modes such as in borehole acoustic data. the new approach works jointly in the fourier and space time domains and, in contrast to existing space time approaches that mainly work f... | arxiv:1312.3981 |
synthetic samples from diffusion models are promising for leveraging in training discriminative models as replications of real training datasets. however, we found that the synthetic datasets degrade classification performance over real datasets even when using state - of - the - art diffusion models. this means that m... | arxiv:2311.13090 |
the phase space of quantum mechanics can be viewed as the complex projective space endowed with a kaehlerian structure given by the fubini - study metric and an associated symplectic form. we can then interpret the schrodinger equation as generating a hamiltonian dynamics. based upon the geometric structure of the quan... | arxiv:quant-ph/9709048 |
one of the fundamental questions about quasars is related to their central supermassive black holes. the reason for the existence of these black holes with such a huge mass is still unclear and various models have been proposed to explain them. however, there is still no comprehensive explanation that is accepted by th... | arxiv:2301.01459 |
sensing and manipulating targets hidden under scattering media are universal problems that take place in applications ranging from deep - tissue optical imaging to laser surgery. a major issue in these applications is the shallow light penetration caused by multiple scattering that reflects most of incident light. alth... | arxiv:1308.6553 |
we report the analysis of time - series of infrared $ jhk _ s $ photometry of the dwarf nova v2051 oph in quiescence. we modelled the ellipsoidal variations caused by the distorted mass - donor star to infer its $ jhk _ s $ fluxes. from its infrared colors we estimate a spectral type of $ m ( 8. 0 \ pm 1. 5 ) $ and an ... | arxiv:1801.01478 |
chemistry in titan ' s n2 - ch4 atmosphere produces complex organic aerosols. the chemical processes and the resulting organic compounds are still far from understood, although extensive observations, laboratory, and theoretical simulations have greatly improved physical and chemical constraints on titan ' s atmosphere... | arxiv:2209.11264 |
superconductor / ferromagnet / superconductor josephson junctions with anomalous phase shift $ \ varphi _ 0 $ ( $ \ varphi _ 0 $ - s / f / s jjs ) implement a coupling between the superconducting phase and the spin degrees of freedom. here we investigate the dynamics of voltage - biased coupled chains of $ \ varphi _ 0... | arxiv:2406.01207 |
a key pre - distribution scheme ( kps ) based on multiple codewords of block codes is presented for wireless sensor networks. the connectivity and security of the proposed kps, quantified in terms of probabilities of sharing common keys for communications of pairs of nodes and their resilience against colluding nodes, ... | arxiv:1407.7011 |
( abridged ) a new method is presented to identify transient candidates in large - scale surveys based on the variability pattern in their light curves. the method is based on the abbe value, that estimates the smoothness of a light curve, and on a newly introduced value called the excess abbe that estimates the regula... | arxiv:1406.7785 |
asymmetric dark matter under certain conditions could form compact star - like objects, which can be searched either through gravitational lensing or by observation of gravitational waves from binaries involving such compact objects. in this paper we analyze possible signatures of such dark stars made of asymmetric dar... | arxiv:2211.05845 |
this thesis presents the evidence, at 3. 08 sigma, for the associate production of massive vector bosons ( w and z ) in a final state with one lepton, met and hf - tagged jets, measured with the complete cdf ii dataset ( 9. 4fb ^ - 1 of data ). the signals, both inclusive diboson production and ww vs wz / zz separately... | arxiv:1302.0389 |
we study products of functions evaluated at self - adjoint polynomials in deterministic matrices and independent wigner matrices ; we compute the deterministic approximations of such products and control the fluctuations. we focus on minimizing the assumption of smoothness on those functions while optimizing the error ... | arxiv:2208.02118 |
in this paper we show how the relaxation techniques can be used to establish the existence of an optimal contract in presence of information asymmetry. the method we illustrate was initially motivated by the problem of designing optimal brokerage fees, but it does apply to other optimal contract problems, in which ( i ... | arxiv:2307.07010 |
we study the su ( 3 ) extension of the skyrme model with vector mesons in the collective quantization scheme. the parameters of the model are fixed in its mesonic sector. fields which are excited by the collective rotation of the classical soliton are determined by a variational method. the resulting collective hamilto... | arxiv:hep-ph/9211259 |
merging mobile edge computing ( mec ), which is an emerging paradigm to meet the increasing computation demands from mobile devices, with the dense deployment of base stations ( bss ), is foreseen as a key step towards the next generation mobile networks. however, new challenges arise for designing energy efficient net... | arxiv:1701.07405 |
we study the high - energy limit of tree - level string production amplitudes from decaying d - branes in bosonic string theory, interpreting the vertex operators as external charges interacting with a coulomb gas corresponding to the rolling tachyon background, and performing an electrostatic analysis. in particular, ... | arxiv:1008.4743 |
we have performed a statistical analysis of a sample of 1100 extra - galactic rotation measures ( rms ) obtained from the literature. using a subsample of approximately 800 reliable rms we compute a rotation measure sky and determine reliable large scale features for the line of sight galactic magnetic field. we find t... | arxiv:astro-ph/0410659 |
this article investigates the concept of dominant metric dimensions in zero divisor graphs ( zd - graphs ) associated with rings. consider a finite commutative ring with unity, denoted as r, where nonzero elements x and y are identified as zero divisors if their product results in zero ( x. y = 0 ). the set of zero div... | arxiv:2312.16005 |
there are a number of studies about extraction of bottleneck ( bn ) features from deep neural networks ( dnns ) trained to discriminate speakers, pass - phrases and triphone states for improving the performance of text - dependent speaker verification ( td - sv ). however, a moderate success has been achieved. a recent... | arxiv:1905.04554 |
creation of high quality p - n junctions in graphene monolayer is vital in studying many exotic phenomena of massless dirac fermions. however, even with the fast progress of graphene technology for more than ten years, it remains conspicuously difficult to generate nanoscale and atomically - sharp p - n junctions in gr... | arxiv:1705.10952 |
subspace codes have received an increasing interest recently due to their application in error - correction for random network coding. in particular, cyclic subspace codes are possible candidates for large codes with efficient encoding and decoding algorithms. in this paper we consider such cyclic codes and provide con... | arxiv:1404.7739 |
we calculate the gluon structure function of a color dipole in near - light - cone su ( 2 ) lattice qcd as a function of $ x _ b $. the quark and antiquark are external non - dynamical degrees of freedom which act as sources of the gluon string configuration defining the dipole. we compute the color dipole matrix eleme... | arxiv:0908.0715 |
in this short paper, we establish a reverse of the derived inequalities for sector matrices by tan and xie, with kantorovich constant. then, as application of our main theorem, some inequalities for determinant and unitarily invariant norm are presented. | arxiv:2001.00683 |
in this paper it is shown that the mathematical form which most precisely describes the blazhko rr lyrae light curves is connected to almost periodic functions and not to the mathematics of modulation. that is, the blazhko effect is more than a simple external modulation of the pulsation signal. the mathematical framew... | arxiv:1709.02143 |
5d cosmological model with 3 - brane with matter is considered. the brane divides bulk in two ads half spaces. geometry of the model can be described by two types of coordinates : in the first setting the metric is static and the brane is moving in the bulk, in the second approach the metric is time - dependent and the... | arxiv:1204.2351 |
post - training quantization ( ptq ) for vision transformers ( vits ) has received increasing attention from both academic and industrial communities due to its minimal data needs and high time efficiency. however, many current methods fail to account for the complex interactions between quantized weights and activatio... | arxiv:2407.06794 |
in this paper, a noncommutative gravitational theory is constructed by applying moyal deformation quantization and the seiberg - witten map to teleparallel gravity, a classical gravitational theory, as a gauge theory of local translational symmetry. since our model is based on teleparallel gravity, it is an extremely s... | arxiv:1806.08062 |
we provide the microscopic explanation for the localized f state observed in a heavy fermion metal ybrh2si2 by prof. f. steglich ' s group, reported recently in phys. rev. lett. 91 ( 2003 ) 156401, as associated with the strongly - correlated 4f13 configuration of the yb atom. we derived to ground - state eigenfunction... | arxiv:cond-mat/0401127 |
the electronic structure of heterointerfaces play a pivotal role in their device functionality. recently, highly crystalline ultrathin films of superconducting nbn have been integrated by molecular beam epitaxy with the semiconducting gan. we use soft x - ray angle - resolved photoelectron spectroscopy to directly meas... | arxiv:2103.07021 |
observations by the voyager and cassini spacecrafts have revealed various striking features of the gap structure in saturn ' s ring, such as the density waves, sharp edge, and vertical wall structure. in order to explain these features in a single simulation, we perform a high - resolution ( n ~ 10 ^ 6 - 10 ^ 7 ) globa... | arxiv:2403.03012 |
we have applied the fast fourier transform ( fft ), which allows to compute efficiently convolution sums, to solve the set of self - consistent t - matrix equations to get the green function of the two dimensional attractive - u hubbard modelbelow $ t _ c $, extending previous calculations of the same authors. using a ... | arxiv:cond-mat/9612246 |
the structure of nafion, the polymer electrolyte membrane used in some fuel cells, has been extensively debated over recent decades. now, a newly proposed model reveals the nanoscale arrangement that could explain the excellent transport properties of the material. | arxiv:0807.3407 |
clustering measurements of gravitational wave ( gw ) mergers in luminosity distance space can be used in the future as a powerful tool for cosmology. we consider tomographic measurements of the angular power spectrum of mergers both in an einstein telescope - like detector network and in some more advanced scenarios ( ... | arxiv:2007.06905 |
we present an analysis of high - resolution spectroscopy of several bright t tauri stars using the vlt / crires and keck / nirspec spectrographs, revealing the first detections of emission from hcn and c2h2 in circumstellar disks at near - infrared wavelengths. using advanced data reduction techniques we achieve a dyna... | arxiv:1201.0766 |
we present a network formulation for a traffic flow model with nonlocal velocity in the flux function. the modeling framework includes suitable coupling conditions at intersections to either ensure maximum flux or distribution parameters. based on an upwind type numerical scheme, we prove the maximum principle and the ... | arxiv:2105.00834 |
sentiment analysis is a fundamental and valuable task in nlp. however, due to limitations in data and technological availability, research into sentiment analysis of african languages has been fragmented and lacking. with the recent release of the afrisenti - semeval shared task 12, hosted as a part of the 17th interna... | arxiv:2310.14120 |
we measured the lifetime of optically created valley polarization in single layer ws2 using transient absorption spectroscopy. the electron valley relaxation is very short ( < 1ps ). however the hole valley lifetime is at least two orders of magnitude longer and exhibits a temperature dependence that cannot be explaine... | arxiv:1405.5141 |
we prove the existence of positive solutions to a sys - tem of k non - linear elliptic equations corresponding to standing - wave k - uples solutions to a system of non - linear klein - gordon equations. our solutions are characterised by a small energy / charge ratio, appropriately defined. | arxiv:1110.6495 |
recently, face recognition systems have demonstrated remarkable performances and thus gained a vital role in our daily life. they already surpass human face verification accountability in many scenarios. however, they lack explanations for their predictions. compared to human operators, typical face recognition network... | arxiv:2211.13735 |
we show here the separability of hamilton - jacobi equation for a hierarchy of integrable hamiltonian systems obtained from the constrained flows of the jaulent - miodek hierarchy. the classical poisson structure for these hamiltonian systems is constructed. the associated $ r $ - matrices depend not only on the spectr... | arxiv:solv-int/9509009 |
in this note we comment on a recent attempt by p. burikham, t. harko, k. pimsamarn and s. shahidi [ phys. rev. d { \ bf 107 }, 064008 ( 2023 ) ] to explain the galactic rotation curves as the result of the motion of time - like test particles in the weyl geometric theory of gravity. we show that the static, spherically... | arxiv:2306.11926 |
during infectious disease outbreaks, estimates of time - varying pathogen transmissibility, such as the instantaneous reproduction number r ( t ) or epidemic growth rate r ( t ), are used to inform decision - making by public health authorities. for directly transmitted infectious diseases, the renewal equation framewo... | arxiv:2409.18726 |
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