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crystals melt when thermal excitations or the concentration of defects in the lattice is sufficiently high. upon melting, the crystalline long - range order vanishes, turning the solid to a fluid. in contrast to this classical scenario of solid melting, here we demonstrate a counter - intuitive behavior of the occurren... | arxiv:2010.03794 |
pressure effect is overviewed for the cuprates and carbon - based superconductors, with an emphasis on how their orbital characters are modified by pressure. for the high - tc cuprates, we start from an observation for ambient pressure that, on top of the main orbital ( dx2 - y2 ), a hybridization with the second ( dz2... | arxiv:1307.5954 |
##x < 2x + 1 β€ 3x + 2, it is not possible to isolate x in any one part of the inequality through addition or subtraction. instead, the inequalities must be solved independently, yielding x < 1 / 2 and x β₯ β1 respectively, which can be combined into the final solution β1 β€ x < 1 / 2. occasionally, chained notation is us... | https://en.wikipedia.org/wiki/Inequality_(mathematics) |
in this document, a nonlinear control law for a grid - tied converter is introduced. the converter topology consists of a voltage source inverter ( vsi ) linked to the grid through an inductive - capacitive second - order filter, its input being connected to a capacitive dc - link supplied by a renewable energy - based... | arxiv:2502.18245 |
in this paper we study the existence of basins of attraction for germs of 2 - resonant biholomorphisms of $ \ c ^ n $ fixing a point, that is germs such that the eigenvalues of the differential at the fixed point have a 2 dimensional family of resonances. | arxiv:1211.3103 |
a sequential piecewise linear programming method is presented where bounded domains of non - convex functions are successively contracted about the solution of a piecewise linear program at each iteration of the algorithm. although feasibility and optimality are not guaranteed, we show that the method is capable of obt... | arxiv:2004.09474 |
the purpose of this work is to analyze the flow due to a potential point vortex pair in the vicinity of a symmetry line ( or " wall " ), in order to understand why the presence of the wall, even far from the vortices, accelerates fluid mixing around the vortex pair. an asymptotic analysis, in the limit of large distanc... | arxiv:1109.2423 |
we study homotopic - to - the - identity torus homeomorphisms, whose rotation set has nonempty interior. we prove that any such map is monotonically semiconjugate to a homeomorphism that preserves the lebesgue measure, and that has the same rotation set. furthermore, the dynamics of the quotient map has several interes... | arxiv:2404.02341 |
optical computing systems provide an alternate hardware model which appears to be aligned with the demands of neural network workloads. however, the challenge of implementing energy efficient nonlinearities in optics - - a key requirement for realizing neural networks - - is a conspicuous missing link. in this work we ... | arxiv:2504.20401 |
we introduce a notion of position - space cuts of eikonal diagrams, the set of diagrams appearing in the perturbative expansion of the correlator of a set of straight semi - infinite wilson lines. the cuts are applied directly to the position - space representation of any such diagram and compute its imaginary part to ... | arxiv:1410.5681 |
from medium - resolution radio images, dr 16 was suspected to be a large cometary nebula. to test this suggestion we obtained a higher resolution ( 15 \ arcsec ) vla continuum map. we also analyzed data from the canadian galactic plane survey in continuum, h i line, and ir. these data were supplemented by published nea... | arxiv:astro-ph/0311243 |
gait recognition with radio frequency ( rf ) signals enables many potential applications requiring accurate identification. however, current systems require individuals to be within a line - of - sight ( los ) environment and struggle with low signal - to - noise ratio ( snr ) when signals traverse concrete and thick w... | arxiv:2407.21566 |
the space $ t _ { poly } ( \ mathbb r ^ d ) $ of all tensor fields on $ \ mathbb r ^ d $, equipped with the schouten bracket is a lie algebra. the subspace of ascending tensors is a lie subalgebra of $ t _ { poly } ( \ mathbb r ^ d ) $. in this paper, we compute the cohomology of the adjoint representations of this alg... | arxiv:1003.4191 |
in this paper, we first introduce the full express of the riemannian curvature tensor of a real hypersurface $ m $ in complex quadric $ q ^ { m } $ from the equation of gauss. next we derive a formula for the structure jacobi operator $ r _ { \ xi } $ and its derivative under the levi - civita connection of $ m $. we g... | arxiv:1907.04661 |
we study correlations in spatial orientation between galaxy clusters and their host superclusters using a hubble volume n - body realization of a concordance cosmology and an analytic model for tidally - induced alignments. we derive an analytic form for distributions of the alignment angle as functions of halo mass ( ... | arxiv:astro-ph/0608685 |
the concept of physical momentum associated to phonons in a crystal, complemented with some fundamental reasoning, implies measurable effects in crystals even at a macroscopic scale. we show that, in close analogy with the transfer of momentum in the kinetic theory of gases, physical momentum carried by of phonons coup... | arxiv:1210.2847 |
recent work on the quantum mechanics of near - extremal non - supersymmetric black holes has identified a characteristic $ t ^ { 3 / 2 } $ scaling of the low temperature black hole partition function. this result has only been derived using the path integral in the near - horizon region and relies on many assumptions. ... | arxiv:2409.14928 |
we investigate nonequilibrium noise in a diffusive andreev interferometer, in which currents emerging from two normal metal / superconductor ( n - s ) interfaces can interfere. we observe a modulation of the shot noise when the phase difference between the two n - s interfaces is varied by a magnetic flux. this is the ... | arxiv:cond-mat/0208089 |
we present a model - based feature extractor to describe neighborhoods around keypoints by finite expansion, estimating the spatially varying orientation by harmonic functions. the iso - curves of such functions are highly symmetric w. r. t. the origin ( a keypoint ) and the estimated parameters have well defined geome... | arxiv:2311.01651 |
crash events identification and prediction plays a vital role in understanding safety conditions for transportation systems. while existing systems use traffic parameters correlated with crash data to classify and train these models, we propose the use of a novel sensory unit that can also accurately identify crash eve... | arxiv:2203.06059 |
a common optimization problem in the areas of magnetized plasmas and fusion energy is the design of magnets to produce a given three - dimensional magnetic field distribution to high precision. when designing arrays of permanent magnets for stellarator plasma confinement, such problems have tens of thousands of degrees... | arxiv:2309.17244 |
image to image translation ( i2i ) is a challenging computer vision problem used in numerous domains for multiple tasks. recently, ophthalmology became one of the major fields where the application of i2i is increasing rapidly. one such application is the generation of synthetic retinal optical coherence tomographic ( ... | arxiv:2112.06031 |
multivariate bernoulli autoregressive ( bar ) processes model time series of events in which the likelihood of current events is determined by the times and locations of past events. these processes can be used to model nonlinear dynamical systems corresponding to criminal activity, responses of patients to different m... | arxiv:1811.02979 |
it is shown that $ u _ k \ cdot v _ k $ converges weakly to $ u \ cdot v $ if $ u _ k \ weakto u $ weakly in $ l ^ p $ and $ v _ k \ weakly v $ weakly in $ l ^ q $ with $ p, q \ in ( 1, \ infty ) $, $ 1 / p + 1 / q = 1 $, under the additional assumptions that the sequences $ \ div u _ k $ and $ \ curl v _ k $ are compa... | arxiv:0907.0397 |
only four star clusters are known within ~ 100 pc of earth. of these, the chi1 for cluster has barely been studied. we use the gaia dr2 catalog and other published data to establish the cluster membership, structure, and age. the age of and distance to the cluster are ~ 40 myr and 104 pc, respectively. a remarkable, un... | arxiv:1909.08764 |
we introduce an accurate and robust technique for accessing causality of network transfer functions given in the form of bandlimited discrete frequency responses. these transfer functions are commonly used to represent the electrical response of high speed digital interconnects used on chip and in electronic package as... | arxiv:1411.3812 |
we investigate the eigenmodes of the massless dirac operator to extract the scale - dependent fermion mass anomalous dimension gamma _ m ( mu ). by combining simulations on multiple lattice volumes, and when possible several gauge couplings, we are able to measure the anomalous dimension across a wide range of energy s... | arxiv:1301.1355 |
, such as einstein and dirac, to be among the " real " mathematicians, but at the time that he was writing his apology, he considered general relativity and quantum mechanics to be " useless ", which allowed him to hold the opinion that only " dull " mathematics was useful. moreover, hardy briefly admitted that β just ... | https://en.wikipedia.org/wiki/Pure_mathematics |
we study the existence of continuity points for mappings $ f : x \ times y \ to z $ whose $ x $ - sections $ y \ ni y \ to f ( x, y ) \ in z $ are fragmentable and $ y $ - sections $ x \ ni x \ to f ( x, y ) \ in z $ are quasicontinuous, where $ x $ is a baire space and $ z $ is a metric space. for the factor $ y $, we... | arxiv:1010.0441 |
testing and characterizing the difference between two data samples is of fundamental interest in statistics. existing methods such as kolmogorov - smirnov and cramer - von - mises tests do not scale well as the dimensionality increases and provides no easy way to characterize the difference should it exist. in this wor... | arxiv:1011.1253 |
let t be a tilting module. in this paper, some relative gorenstein projective and gortenstein injective modules are studied. | arxiv:1906.01457 |
the observed lyman - alpha ( lya ) line profile is a convolution of the complex lya radiative transfer taking place in the interstellar, circumgalactic and intergalactic medium ( ism, cgm, and igm, respectively ). discerning the different components of the lya line is crucial in order to use it as a probe of galaxy for... | arxiv:2501.04077 |
the ieee vis conference ( vis ) recently rebranded itself as a unified conference and officially positioned itself within the discipline of data science. driven by this movement, we investigated ( 1 ) who contributed to vis, and ( 2 ) where vis stands in the scientific world. we examined the authors and fields of study... | arxiv:2208.03772 |
we report on the magnetic field dispersion of the exciton spin - splitting and diamagnetic shift in single inas / gaas quantum dots ( qds ) and dot molecules ( qdms ) up to $ b $ = 28 t. only for systems with strong geometric confinement, the dispersions can be well described by simple field dependencies, while for dot... | arxiv:cond-mat/0503271 |
due to their relevance in controller design, we consider the problem of determining the $ \ mathcal { l } ^ 2 $ - gain, passivity properties and conic relations of an input - output system. while, in practice, the input - output relation is often undisclosed, input - output data tuples can be sampled by performing ( nu... | arxiv:1910.08919 |
we present the discovery of three late type ( > t4 ) brown dwarfs, including a probable y dwarf, in the wfc3 infrared spectroscopic parallels ( wisp ) survey. we use the g141 grism spectra to determine the spectral types of the dwarfs and derive distance estimates based on a comparison with nearby t dwarfs with known p... | arxiv:1204.6320 |
bars are important in the secular evolution of galaxies. this study is aimed at exploring the reasons why some galaxies have bars at redshift $ z = 0 $ while others do not. we use ellipse fitting to measure the properties and evolution of bars in the illustristng cosmological simulation. by using the k - s two - sample... | arxiv:2412.02255 |
automatically detecting and recovering from failures is an important but challenging problem for autonomous robots. most of the recent work on learning to plan from demonstrations lacks the ability to detect and recover from errors in the absence of an explicit state representation and / or a ( sub - ) goal check funct... | arxiv:2405.18948 |
we investigate the collective dynamics of bursting neurons on clustered network. the clustered network is composed of subnetworks each presenting a small - world property, and in a given subnetwork each neuron has a probability to be connected to the other subnetworks. we give bounds for the critical coupling strength ... | arxiv:1012.4512 |
fluids in porous media are commonly studied with analytical or simulation methods, usually assuming that the host medium is rigid. by evaluating the substrate ' s response ( relaxation ) to the presence of the fluid we assess the error inherent in that assumption. one application is a determination of the ground state ... | arxiv:0810.0262 |
an ising model with local glauber dynamics is studied under the influence of additional kinetic restrictions for the spin - flip rates depending on the orientation of neighboring spins. even when the static interaction between the spins is completely eliminated and only an external field is taken into account the syste... | arxiv:cond-mat/9907414 |
c - based interpreters such as cpython make extensive use of c " extension " code, which is opaque to static analysis tools and faster runtimes with jit compilers, such as pypy. not only are the extensions opaque, but the interface between the dynamic language types and the c types can introduce impedance. we hypothesi... | arxiv:2403.02420 |
the cohen - kaplan - nelson bound is imposed on the grounds of logical consistency ( with classical general relativity ) upon local quantum field theories. this paper puts the bound into the context of a thermodynamic principle applicable to a field with a particular equation of state in an expanding universe. this is ... | arxiv:2111.07807 |
a model for the qcd vacuum based on a domainlike structured background gluon field with definite duality attributed to the domains has been shown elsewhere to give confinement of static quarks, a reasonable value for the topological susceptibility and indications that chiral symmetry is spontaneously broken. in this pa... | arxiv:hep-ph/0208064 |
we consider the problem of enumerating the number of irreducible transformation shift registers. we give an asymptotic formula for the number of irreducible transformation shift registers in some special cases. moreover, we derive a short proof for the exact number of irreducible transformation shift registers of order... | arxiv:1506.02548 |
we show fully polynomial time randomized approximation schemes ( fpras ) for counting matchings of a given size, or more generally sampling / counting monomer - dimer systems in planar, not - necessarily - bipartite, graphs. while perfect matchings on planar graphs can be counted exactly in polynomial time, counting no... | arxiv:2102.02708 |
typically, the deployment of face recognition models in the wild needs to identify low - resolution faces with extremely low computational cost. to address this problem, a feasible solution is compressing a complex face model to achieve higher speed and lower memory at the cost of minimal performance drop. inspired by ... | arxiv:1811.09998 |
in superfluid dark matter ( sfdm ), the phonon field plays a double role : it carries the superfluid ' s energy density and it mediates the mond - like phonon force. we show that these two roles are in tension with each other on galactic scales : a mond - like phonon force is in tension with a superfluid in equilibrium... | arxiv:2009.03003 |
dielectric data on glycerol and propylene carbonate covering 18 decades of frequency are presented and compared to each other. both materials exhibit qualitatively similar behavior except for marked differences in the high - frequency region just below the boson peak. the results on both materials are consistent with t... | arxiv:cond-mat/9812257 |
the original casimir effect results from the difference in the vacuum energies of the electromagnetic field, between that in a region of space with boundary conditions and that in the same region without boundary conditions. in this paper we develop the theory of a similar situation, involving a scalar field in spaceti... | arxiv:gr-qc/0205050 |
in this work, we consider the spread of a ' civilisation ' in an idealised homogeneous isotropic universe where all the planets of interest are habitable. following a framework that goes beyond the usual idea of percolation, we investigate the behaviour of the number of colonised planets with time, and the total coloni... | arxiv:2309.06575 |
if a fluctuating medium is confined, the ensuing perturbation of its fluctuation spectrum generates casimir - like effective forces acting on its confining surfaces. near a continuous phase transition of such a medium the corresponding order parameter fluctuations occur on all length scales and therefore close to the c... | arxiv:0908.1795 |
existing image - based activity understanding methods mainly adopt direct mapping, i. e. from image to activity concepts, which may encounter performance bottleneck since the huge gap. in light of this, we propose a new path : infer human part states first and then reason out the activities based on part - level semant... | arxiv:2004.00945 |
we study the directed polymer model in dimension $ { 1 + 1 } $ when the environment is heavy - tailed, with a decay exponent $ \ alpha \ in ( 0, 2 ) $. we give all possible scaling limits of the model in the weak - coupling regime, i. e., when the inverse temperature temperature $ \ beta = \ beta _ n $ vanishes as the ... | arxiv:1802.03355 |
rig categories with finite biproducts are categories with two monoidal products, where one is a biproduct and the other distributes over it. in this work we present tape diagrams, a sound and complete diagrammatic language for these categories, that can be intuitively thought as string diagrams of string diagrams. we t... | arxiv:2210.09950 |
using density - functional theory ( dft ) we investigate the incorporation of oxygen directly below the rh ( 111 ) surface. we show that oxygen incorporation will only commence after nearly completion of a dense o adlayer ( \ theta _ tot = 1. 0 monolayer ) with o in the fcc on - surface sites. the experimentally sugges... | arxiv:cond-mat/0205257 |
the history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past. before the modern age and the worldwide spread of knowledge, written examples of new mathematical developments have come to light only in a few locales. from 3000 bc the mesopotamian sta... | https://en.wikipedia.org/wiki/History_of_mathematics |
we introduce and study a one parameter deformation of the polynuclear growth ( png ) in $ ( 1 + 1 ) $ - dimensions, which we call the $ t $ - png model. it is defined by requiring that, when two expanding islands merge, with probability $ t $ they sprout another island on top of the merging location. at $ t = 0 $, this... | arxiv:2108.06018 |
data augmentation can effectively resolve a scarcity of images when training machine - learning algorithms. it can make them more robust to unseen images. we present a lesion conditional generative adversarial network lcgan to generate synthetic computed tomography ( ct ) images for data augmentation. a lesion conditio... | arxiv:2003.13868 |
studies of diffuse magnetic scattering largely benefit from the use of a multi - detector covering wide scattering angles. therefore, the different contributions to the diffuse scattering that originate from magnetic, nuclear coherent, and nuclear spin - incoherent scattering can be separated by the so - called xyz - p... | arxiv:1002.1228 |
we demonstrate the use of an optimized 5 core photonic lantern ( pl ) to simultaneously measure tip / tilt errors at the telescope focal plane, while also providing the input to an instrument. by replacing a single mode ( sm ) fiber with the pl we show that it is possible to stabilize the input psf to an instrument due... | arxiv:1809.08131 |
a stability of nearly limiting stokes waves to superharmonic perturbations is considered numerically. the new, previously inaccessible branches of superharmonic instability were investigated. our numerical simulations suggest that eigenvalues of linearized dynamical equations, corresponding to the unstable modes, appea... | arxiv:2206.00725 |
blackholecam is a project funded by a european research council synergy grant to build a complete astrophysical description of nearby supermassive black holes by using a combination of radio imaging, pulsar observations, stellar astrometry and general relativistic magneto - hydrodynamic models. blackholecam scientists ... | arxiv:2306.01496 |
we study the periodic homogenization of first order front propagations. based on pde methods, we provide a simple proof that for $ n \ geq 3 $, the class of centrally symmetric polytopes with rational coordinates and nonempty interior is admissible as effective fronts, which was also established in [ 1, 10 ] in the for... | arxiv:1909.11067 |
discovering the causal relationship via recovering the directed acyclic graph ( dag ) structure from the observed data is a well - known challenging combinatorial problem. when there are latent variables, the problem becomes even more difficult. in this paper, we first propose a dag structure recovering algorithm, whic... | arxiv:2311.00674 |
we prove the bogomolov conjecture for an abelian variety a over a function field which is totally degenerate at a place v. we adapt zhang ' s proof of the number field case replacing the complex analytic tools by tropical analytic geometry. a key step is the tropical equidistribution theorem for a at the totally degene... | arxiv:math/0609387 |
this paper presents a method to reconstruct high - quality textured 3d models from single images. current methods rely on datasets with expensive annotations ; multi - view images and their camera parameters. our method relies on gan generated multi - view image datasets which have a negligible annotation cost. however... | arxiv:2305.11102 |
the origins space telescope ( origins ) traces our cosmic history, from the formation of the first galaxies and the rise of metals to the development of habitable worlds and present - day life. origins does this through exquisite sensitivity to infrared radiation from ions, atoms, molecules, dust, water vapor and ice, ... | arxiv:1912.06213 |
a main feature of high - energy scattering in qcd is saturation in the number density of gluons. this phenomenon is described by non - linear evolution equations, jimwlk and bk, which have been derived at leading logarithmic accuracy. in this paper we generalize this framework to include running coupling corrections to... | arxiv:hep-ph/0609087 |
increasing amounts of scientific and social data are published in the resource description framework ( rdf ). although the rdf data can be queried using the sparql language, even the sparql - based operation has a limitation in implementing traversal or analytical algorithms. recently, a variety of graph database imple... | arxiv:1812.01801 |
we discuss the theorem on the existence of six points on a convex closed plane curve in which the curve has a contact of order six with the osculating conic. ( this is the ` ` projective version ' ' of the well known four vertices theorem for a curve in the euclidean plane. ) we obtain this classical fact as a corollar... | arxiv:dg-ga/9510008 |
turbulence driven zonal flows play an important role in fusion devices since they improve plasma confinement by limiting the level of anomalous transport. current theories mostly focus on flow excitation but do not self - consistently describe the nearly stationary zonal flow turbulence equilibrium state. first - princ... | arxiv:1106.1963 |
in this paper we study global distance estimates and uniform local volume estimates in a large class of sub - riemannian manifolds. our main device is the generalized curvature dimension inequality introduced by the first and the third author in \ cite { bg1 } and its use to obtain sharp inequalities for solutions of t... | arxiv:1211.0221 |
we report results from a deep jansky very large array ( jvla ) search for co 1 - 0 line emission from galaxies in a candidate galaxy cluster at z ~ 1. 55 in the cosmos field. we target 4 galaxies with optical spectroscopic redshifts in the range z = 1. 47 - 1. 59. two of these 4 galaxies, id51613 and id51813, are nomin... | arxiv:1207.2795 |
text - to - video ( t2v ) generation has recently garnered significant attention thanks to the large multi - modality model sora. however, t2v generation still faces two important challenges : 1 ) lacking a precise open sourced high - quality dataset. the previous popular video datasets, e. g. webvid - 10m and panda - ... | arxiv:2407.02371 |
the paper is withdrawn by the author because it is superseded by cond - mat / 0303357. | arxiv:cond-mat/0210674 |
we consider the dynamics of a mechanical failure induced by a shear stress in a strongly magnetized neutron - star crust. we show that even if the elastic properties of the crust allow the creation of a shear crack, the strongly sheared magnetic field around the crack leads to a back - reaction from the lorentz force w... | arxiv:1204.2605 |
the last 10 - 20 years has seen a profound shift in views of how the galaxy ' s halo formed. the idea of a monolithic early collapse of a single system ( eggen, lynden - bell and sandage 1962 ) has been challenged by observations at high redshift and by cosmological models of structure formation. these findings imply t... | arxiv:astro-ph/0111097 |
the human visual system can spot an abnormal image, and reason about what makes it strange. this task has not received enough attention in computer vision. in this paper we study various types of atypicalities in images in a more comprehensive way than has been done before. we propose a new dataset of abnormal images s... | arxiv:1512.01325 |
we present a monte carlo generator that implements significant theoretical improvements in the simulation of top - quark pair production and decay at the lhc. spin correlations and off - shell effects in top - decay chains are described in terms of exact matrix elements for $ p p \ to \ ell ^ + \ nu _ { \ scriptscripts... | arxiv:1607.04538 |
we report the results of a full - stokes survey of all four 18 cm oh lines in 77 oh megamasers ( ohms ) using the arecibo observatory. this is the first survey of ohms that included observations of the oh satellite lines ; only 4 of the 77 ohms have existing satellite line observations in the literature. in 5 sources, ... | arxiv:1307.5071 |
in this paper, we propose an accurate finite difference method to discretize the $ d $ - dimensional ( for $ d \ ge 1 $ ) tempered integral fractional laplacian and apply it to study the tempered effects on the solution of problems arising in various applications. compared to other existing methods, our method has high... | arxiv:1808.02615 |
we show that limit cycle systems in langevin bath exhibit uncertainty in observables that define the limit - cycle plane, and maintain a positive lower bound. the uncertainty - bound depends on the parameters that determine the shape and periodicity of the limit cycle. in one dimension, we use the framework of canonica... | arxiv:2502.13111 |
we study the compactification of om - theory on tori and show a simple heuristic derivation of the $ s $ - duals of noncommutative open string theory in diverse dimensions from the om - theoretical point of view. in particular, we identify the $ s $ - duality between noncommutative open string theory and noncommutative... | arxiv:hep-th/0006225 |
recommender systems have been applied successfully in a number of different domains, such as, entertainment, commerce, and employment. their success lies in their ability to exploit the collective behavior of users in order to deliver highly targeted, personalized recommendations. given that recommenders learn from use... | arxiv:1811.01461 |
we present a systematic theoretical study of the five smallest oligoacenes ( naphthalene, anthracene, tetracene, pentacene, and hexacene ) in their anionic, neutral, cationic, and dicationic charge states. we used density functional theory ( dft ) to obtain the ground - state optimised geometries, and time - dependent ... | arxiv:0707.3045 |
general fractional calculus offers an elegant and self - consistent path toward the generalization of fractional calculus to an enhanced class of kernels. prabhakar ' s theory can be thought of, to some extent, as an explicit realization of this scheme achieved by merging the prabhakar ( or, three - parameter mittag - ... | arxiv:1911.06695 |
we introduce a new class $ \ mathcal { g } $ of bipartite plane graphs and prove that each graph in $ \ mathcal { g } $ admits a proper square contact representation. a contact between two squares is \ emph { proper } if they intersect in a line segment of positive length. the class $ \ mathcal { g } $ is the family of... | arxiv:2103.08719 |
the fact that not all measurements can be carried out simultaneously is a peculiar feature of quantum mechanics and responsible for many key phenomena in the theory, such as complementarity or uncertainty relations. for the special case of projective measurements quantum behavior can be characterized by the commutator ... | arxiv:1407.2224 |
blazars are the most violent steady / recurrent sources of high - energy gamma - ray emission in the known universe. they are prominent emitters of electromagnetic radiation throughout the entire electromagnetic spectrum. the observable radiation most likely originates in a relativistic jet oriented at a small angle wi... | arxiv:astro-ph/0608713 |
we propose rockmate to control the memory requirements when training pytorch dnn models. rockmate is an automatic tool that starts from the model code and generates an equivalent model, using a predefined amount of memory for activations, at the cost of a few re - computations. rockmate automatically detects the struct... | arxiv:2307.01236 |
two - dimensional ( 2d ) massless dirac electrons appear on a surface of three - dimensional topological insulators. the conductivity of such a 2d dirac electron system is studied for strong topological insulators in the case of the fermi level being located at the dirac point. the average conductivity $ \ langle \ sig... | arxiv:1608.07873 |
gamma cassiopeiae is an enigmatic be star with unusually strong hard x - ray emission. the suzaku observatory detected six rapid x - ray spectral hardening events called " softness dips " in a ~ 100 ksec duration observation in 2011. all the softness dip events show symmetric softness ratio variations, and some of them... | arxiv:1608.01374 |
we present the first optical images of scattered light from large, detached gas / dust shells around two carbon stars, r scl and u ant, obtained in narrow band filters centred on the resonance lines of neutral k and na, and in a str. b filter ( only u ant ). they confirm results obtained in co radio line observations, ... | arxiv:astro-ph/0104140 |
in this paper we study vector fields on the big phase space of gromov - witten theory which are idempotents of the quantum product. such vector fields can be used to simplify universal equations for higher genus gromov - witten invariants. | arxiv:math/0310409 |
in this note, we examine the jacobian ring description of the hodge structure of zero loci of vector bundle sections on a class of ambient varieties. we consider a set of cohomological vanishing conditions that imply such a description, and we verify these conditions for some new cases. we also observe that the method ... | arxiv:1801.08261 |
low - rank matrix factorization ( mf ) is an important technique in data science. the key idea of mf is that there exists latent structures in the data, by uncovering which we could obtain a compressed representation of the data. by factorizing an original matrix to low - rank matrices, mf provides a unified method for... | arxiv:1507.00333 |
topological nodal superconductors are generally realized based on unconventional pairings. in this work, we propose a minimal model to realize these topological nodal phases with only $ s $ - wave interaction. in our model the linear and quadratic spin - orbit couplings along the two directions break the isotropy in mo... | arxiv:1706.01692 |
we present first results from the 3d - hst program, a near - ir spectroscopic survey performed with the wide field camera 3 on the hubble space telescope. we have used 3d - hst spectra to measure redshifts and halpha equivalent widths for a stellar mass - limited sample of 34 galaxies at 1 < z < 1. 5 with m ( stellar )... | arxiv:1108.6060 |
we show how kinetic theory, the statistics of classical particles obeying newtonian dynamics, can be formulated as a field theory. the field theory can be organized to produce a self - consistent perturbation theory expansion in an effective interaction potential. the need for a self - consistent approach is suggested ... | arxiv:1111.0571 |
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