Results for "C. Deng"

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Adaptive Multi-GPU Exchange Monte Carlo for the 3D Random Field Ising ModelAug 25 2015Sep 22 2015We present an adaptive multi-GPU Exchange Monte Carlo method designed for the simulation of the 3D Random Field Model. The algorithm design is based on a two-level parallelization scheme that allows the method to scale its performance in the presence ... More
On the Scalar-Help-Vector Source Coding ProblemApr 10 2019Apr 20 2019In this paper, we consider a scalar-help-vector source coding problem for $L+1$ correlated Gaussian memoryless sources. We deal with the case where $L$ encoders observe noisy linear combinations of $K$ correlated Gaussian scalar sources which work as ... More
Flux-induced Majorana modes in full-shell nanowiresSep 14 2018We demonstrate a novel means of creating Majorana zero modes using magnetic flux applied to a full superconducting shell surrounding a semiconducting nanowire core, unifying approaches based on proximitized nanowires and vortices in topological superconductors. ... More
A short note on the axiomatic requirements of uncertainty measureOct 08 2013In this note, we argue that the axiomatic requirement of range to the measure of aggregated total uncertainty (ATU) in Dempster-Shafer theory is not reasonable.
Transformation of basic probability assignments to probabilities based on a new entropy measureFeb 24 2015Dempster-Shafer evidence theory is an efficient mathematical tool to deal with uncertain information. In that theory, basic probability assignment (BPA) is the basic element for the expression and inference of uncertainty. Decision-making based on BPA ... More
The properties of a large volume-limited sample of face-on low surface brightness disk galaxiesMay 11 2012We select a large volume-limited sample of low surface brightness galaxies (LSBGs, 2,021) to investigate their statistical properties and their differences from high surface brightness galaxies (HSBGs, 3,639) in details. The distributions of stellar masses ... More
Temperature - pressure phase diagram of the superconducting iron pnictide LiFePMar 03 2010Electrical-resistivity and magnetic-susceptibility measurements under hydrostatic pressure up to p = 2.75 GPa have been performed on superconducting LiFeP. A broad superconducting (SC) region exists in the temperature - pressure (T-p) phase diagram. No ... More
The star formation histories of red and blue low surface brightness disk galaxiesApr 25 2010We study the star formation histories (SFH) and stellar populations of 213 red and 226 blue nearly face-on low surface brightness disk galaxies (LSBGs), which are selected from the main galaxy sample of Sloan Digital Sky Survey (SDSS) Data Release Seven ... More
Mid-Infrared Spectroscopic Properties of Ultra-Luminous Infrared QuasarsJul 23 2008We analyse mid-infrared (MIR) spectroscopic properties for 19 ultra-luminous infrared quasars (IR QSOs) in the local universe based on the spectra from the Infrared Spectrograph on board the Spitzer Space Telescope. The MIR properties of IR QSOs are compared ... More
Isophotal Shapes of Elliptical/S0 Galaxies from the Sloan Digital Sky SurveyMay 12 2006Jun 25 2006We revisit the shapes of isophotes for elliptical (E) and lenticular (S0) galaxies by studying 847 nearby early-type galaxies selected from the Sloan Digital Sky Survey Data Release 4 with velocity dispersions above 200 km/s. The IRAF task {\tt ellipse} ... More
Quantum mechanical analysis of nonlinear optical response of interacting graphene nanoflakesDec 18 2017We propose a distant-neighbor quantum-mechanical (DNQM) approach to study the linear and nonlinear optical properties of graphene nanoflakes (GNFs). In contrast to the widely used tight-binding description of the electronic states that considers only ... More
Testing Leggett's Inequality Using Aharonov-Casher EffectApr 21 2011Aug 08 2013Bell's inequality is established based on local realism. The violation of Bell's inequality by quantum mechanics implies either locality or realism or both are untenable. Leggett's inequality is derived based on nonlocal realism. The violation of Leggett's ... More
Experimental Distillation of Quantum NonlocalityMay 18 2013We report the first experimental demonstration of distillation of quantum nonlocality, confirming the recent theoretical protocol [\textit{Phys. Rev. Lett. 102, 120401 (2009)}]. Quantum nonlocality is described by a correlation box with binary inputs ... More
FastCap: An Efficient and Fair Algorithm for Power Capping in Many-Core SystemsMar 03 2016Future servers will incorporate many active lowpower modes for different system components, such as cores and memory. Though these modes provide flexibility for power management via Dynamic Voltage and Frequency Scaling (DVFS), they must be operated in ... More
Parity independence of the zero-bias conductance peak in a nanowire based topological superconductor-quantum dot hybrid deviceJun 12 2014We explore the signatures of Majorana fermions in a nanowire based topological superconductor-quantum dot-topological superconductor hybrid device by charge transport measurements. The device is made from an epitaxially grown InSb nanowire with two superconductor ... More
D3D: Distilled 3D Networks for Video Action RecognitionDec 19 2018Feb 05 2019State-of-the-art methods for video action recognition commonly use an ensemble of two networks: the spatial stream, which takes RGB frames as input, and the temporal stream, which takes optical flow as input. In recent work, both of these streams consist ... More
Large Misalignment between Stellar Bar and Dust Pattern in NGC 3488 Revealed by Spitzer and SDSSSep 01 2006Jun 20 2007A large position angle misalignment between the stellar bar and the distribution of dust in the late-type barred spiral NGC 3488 was discovered, using mid-infrared images from the Spitzer Space Telescope and optical images from the Sloan Digital Sky Survey ... More
Effective g-factor in Majorana WiresOct 11 2017Oct 05 2018We use the effective g-factor of subgap states, g*, in hybrid InAs nanowires with an epitaxial Al shell to investigate how the superconducting density of states is distributed between the semiconductor core and the metallic shell. We find a step-like ... More
Pseudo Kobayashi hyperbolicity of base spaces of families of minimal projective manifolds with maximal variationSep 16 2018Sep 24 2018In this paper we prove that every quasi-projective base space $V$ of smooth family of minimal projective manifolds with maximal variation is pseudo Kobayashi hyperbolic, i.e. $V$ is Kobayashi hyperbolic modulo a proper subvariety $Z\subsetneq V$. In particular, ... More
Growth of higher Sobolev norms for energy critical NLS on irrational tori: small energy caseFeb 18 2017We consider the energy critical nonlinear Schrodinger equation on generic irrational tori. Using the long-time Strichartz estimates proved in [8], we establish polynomial upper bounds for higher Sobolev norms for solutions with small energy.
Dissipation and Semigroup on $H^k_n$: Non-cutoff Linearized Boltzmann Operator with Soft PotentialMay 20 2019In this paper, we find that the linearized collision operator $L$ of the non-cutoff Boltzmann equation with soft potential generates a strongly continuous semigroup on $H^k_n$. In the semigroup theory of Boltzmann equation with angular cutoff, the weighted ... More
Multipartite Leggett-type InequalitiesNov 17 2011We use two different approaches to derive multipartite Leggett-type inequalities, which are generalizations of the two-qubit Leggett-type inequality obtained in [Nature Phys. \textbf{4}, 681 (2008)]. The first approach is based on the assumption that ... More
A Surface Reconstruction with a Fractional Hole: $(\sqrt{5}\times\sqrt{5}) R26.6^\circ$ LaAlO$_3$ (001)Nov 12 2006The structure of the $(\sqrt{5}\times\sqrt{5})R26.6^\circ$ reconstruction of LaAlO$_3$ (001) has been determined using transmission electron diffraction combined with direct methods. The structure is relatively simple, consisting of a lanthanum oxide ... More
The Growth of Black Holes and Their Host Spheroids in (Sub)mm-loud QSOs at High RedshiftApr 24 2007We study the growth of black holes and stellar population in spheroids at high redshift using several (sub)mm-loud QSO samples. Applying the same criteria established in an earlier work, we find that, similar to IR QSOs at low redshift, the far-infrared ... More
Luminous Infrared Galaxies in the Local UniverseMar 21 2006Jun 14 2006We study the morphology and star formation properties of 159 local luminous infrared galaxy (LIRG) using multi-color images from Data Release 2 (DR2) of the Sloan Digital Sky Survey (SDSS). The LIRGs are selected from a cross-correlation analysis between ... More
The Physical Connections Among IR QSOs, PG QSOs and Narrow-Line Seyfert 1 GalaxiesJan 30 2005We study the properties of infrared-selected QSOs (IR QSOs), optically-selected QSOs (PG QSOs) and Narrow Line Seyfert 1 galaxies (NLS1s). We compare their properties from the infrared to the optical and examine various correlations among the black hole ... More
Growth and electrical characterization of Al0.24Ga0.76As/AlxGa1-xAs/Al0.24Ga0.76As modulation-doped quantum wells with extremely low xJul 01 2013We report on the growth and electrical characterization of modulation-doped Al0.24Ga0.76As/AlxGa1-xAs/Al0.24Ga0.76As quantum wells with mole fractions as low as x=0.00057. Such structures will permit detailed studies of the impact of alloy disorder in ... More
Ill-posedness of the incompressible Navier-Stokes equations in $\dot{F}^{-1,q}_{\infty}({R}^3)$Feb 28 2013In this paper, authors show the ill-posedness of 3D incompressible Navier-Stokes equations in the critical Triebel-Lizorkin spaces $ \dot{F}^{-1,q}_{\infty} (\mathbb{R}^3) $ for any $ q>2 $ in the sense that arbitrarily small initial data of $ \dot{F}^{-1,q}_{\infty}(\mathbb{R}^3) ... More
Heralded Entanglement between Atomic Ensembles: Preparation, Decoherence, and ScalingJun 04 2007Sep 19 2007Heralded entanglement between collective excitations in two atomic ensembles is probabilistically generated, stored, and converted to single photon fields. By way of the concurrence, quantitative characterizations are reported for the scaling behavior ... More
Tracking Back the Solar Wind to its Photospheric Footpoints from Wind Observations -- A Statistical StudyFeb 25 2014It is of great importance to track the solar wind back to its photospheric source region and identify the related current sheets; this will provide key information for investigating the origin and predictions of the solar wind. We report a statistical ... More
Linear stability analysis of capillary instabilities for concentric cylindrical shellsSep 27 2010Sep 01 2011Motivated by complex multi-fluid geometries currently being explored in fibre-device manufacturing, we study capillary instabilities in concentric cylindrical flows of $N$ fluids with arbitrary viscosities, thicknesses, densities, and surface tensions ... More
Modeling of Self-Pumped Singly Resonant Optical Parametric OscillatorMar 18 2016A model of the steady-state operating, self-pumped singly resonant optical parametric oscillator (SPSRO) has been developed. The characteristics of quasi three-level laser gain medium pumped longitudinally have been taken into account. The characteristics ... More
Davenport constant for commutative ringsFeb 09 2016The Davenport constant is one measure for how "large" a finite abelian group is. In particular, the Davenport constant of an abelian group is the smallest $k$ such that any sequence of length $k$ is reducible. This definition extends naturally to commutative ... More
Mismatch Repair Error Implies Chargaff's Second Parity RuleApr 17 2007Sep 20 2007Chargaff's second parity rule holds empirically for most types of DNA that along single strands of DNA the base contents are equal for complimentary bases, A = T, G = C. A Markov chain model is constructed to track the evolution of any single base position ... More
Searching for Gravitational Wave Bursts via Bayesian Nonparametric Data Analysis with Pulsar Timing ArraysApr 02 2014May 30 2014Gravitational wave burst is a catch-all category for signals whose durations are shorter than the observation period. We apply a method new to gravitational wave data analysis --- Bayesian non-parameterics --- to the problem of gravitational wave detection, ... More
Deep Learning on Mobile Devices - A ReviewMar 21 2019Recent breakthroughs in deep learning and artificial intelligence technologies have enabled numerous mobile applications. While traditional computation paradigms rely on mobile sensing and cloud computing, deep learning implemented on mobile devices provides ... More
Invariance of the Gibbs measure for the Benjamin-Ono equationOct 04 2012In this paper we consider the periodic Benjemin-Ono equation. We will establish the invariance of the Gibbs measure associated to this equation, thus answering a question raised in Tzvetkov [20]. As an intermediate step, we also obtain a local well-posedness ... More
Clifford-Wolf translations of Finsler spaces of negative flag curvatureApr 23 2012Jan 09 2013This paper has been withdrawn by the author due to a crucial sign error in equation 1. An isometry $\rho$ of a connected Finsler space $(M, F)$ is called bounded if the function $d(x, \rho(x))$ is bounded on $M$. It is called a Clifford-Wolf translation ... More
Symmetrization of representations of $GL_N$May 11 2019In this article, we develop a process to symmetrize the irreducible admissible representation of $GL_N(\mathbb{Q}_p)$, as a consequence we obtain a more geometric understanding of the coefficient $m(\mathbf{b}, \mathbf{a})$ appearing in the decomposition ... More
On the Diverio-Trapani ConjectureMar 22 2017Oct 01 2018In this paper we establish effective lower bounds on the degrees of the Debarre and Kobayashi conjectures. Then we study a more general conjecture proposed by Diverio-Trapani on the ampleness of jet bundles of general complete intersections in complex ... More
Degeneracy of entire curves into higher dimensional complex manifoldsMar 07 2016Pursuing McQuillan's philosophy in proving the Green-Griffiths conjecture for certain surfaces of general type, we deal with the algebraic degeneracy of entire curves tangent to holomorphic foliations by curves. Inspired by the recent work of Paun and ... More
The General Solution to Vlasov Equation and Linear Landau DampingOct 14 2015A general solution to linearized Vlasov equation for an electron electrostatic wave in a homogeneous unmagnetized plasma is derived. The quasi-linear diffusion coefficient resulting from this solution is a continuous function of omega in contrast to that ... More
Kobayashi hyperbolicity of moduli spaces of minimal projective manifolds of general type (with the appendix by Dan Abramovich)Jun 05 2018Oct 09 2018In this work we first refine several results on the positivity of direct images by Koll\'ar and Viehweg-Zuo, along the lines of the fundamental work by Viehweg-Zuo as well as the recent breakthrough by Cao-P\u{a}un on the Iitaka $C_{n,m}$ conjecture. ... More
The Neumann problem for a class of fully nonlinear elliptic partial differential equationsMar 11 2019In this paper, we establish a global $C^2$ estimates to the Neumann problem for a class of fullly nonlinear elliptic equations. By the method of continuity, we establish the existence theorem of $k$-admissible solutions of the Neumann problems.
Tridiagonal random matrix: Gaussian fluctuations and deviationsJun 15 2015This paper is devoted to the Gaussian fluctuations and deviations of the traces of tridiagonal random matrix. Under quite general assumptions, we prove that the traces are approximately normal distributed. Multi-dimensional central limit theorem is also ... More
Dark Energy Survey Year 1: Exploring New Physics Beyond the Standard CosmologyApr 01 2019With the recent data from the first year of the Dark Energy Survey (DES Y1), we attempt to probe whether there is new physics beyond the standard cosmology and to reconcile the $\sigma_8$ tension between the DES Y1 and Planck datasets in four alternative ... More
Applications of the Ohsawa-Takegoshi Extension Theorem to Direct Image ProblemsMar 21 2017Oct 23 2017In the first part of the paper, we study a Fujita-type conjecture by Popa and Schnell, and give an effective bound on the generic global generation of the direct image of the twisted pluricanonical bundle. We also point out the relation between the Seshadri ... More
Multispeed Klein-Gordon systems in dimension threeFeb 04 2016We consider long time evolution of small solutions to general multispeed Klein-Gordon systems in 3+1 dimensions. We prove that such solutions are always global and scatter to a linear flow, thus extending previous partial results. The main new ingredients ... More
The Origin of 2 Sexes Through Optimization of Recombination Entropy Against Time and EnergyMar 09 2007Sexual reproduction in Nature requires two sexes, which raises the question why the reproductive scheme did not evolve to have three or more sexes. Here we construct a constrained optimization model based on the communication theory to analyze trade-offs ... More
Mechanistic Model to Replace Hodgkin-Huxley EquationsMay 13 2015In this paper we construct a mathematical model for excitable membranes by introducing circuit characteristics for ion pump, ion current activation, and voltage-gating. The model is capable of reestablishing the Nernst resting potentials, all-or-nothing ... More
The Time Invariance Principle, Ecological (Non)Chaos, and A Fundamental Pitfall of Discrete ModelingFeb 23 2007Mar 09 2007This paper is to show that most discrete models used for population dynamics in ecology are inherently pathological that their predications cannot be independently verified by experiments because they violate a fundamental principle of physics. The result ... More
Hyperbolicity of bases of log Calabi-Yau familiesJan 14 2019Jan 25 2019In this paper, we prove that the quasi-projective base of any maximally variational smooth family of Calabi-Yau klt pairs is both of log general type, and pseudo Kobayashi hyperbolic. Moreover, such a base is Brody hyperbolic if the family is effectively ... More
Searching for A Generic Gravitational Wave Background via Bayesian Nonparametric Analysis with Pulsar Timing ArraysOct 23 2014Gravitational wave background results from the superposition of gravitational waves generated from all sources across the Universe. Previous efforts on detecting such a background with pulsar timing arrays assume it is an isotropic Gaussian background ... More
A Solution to Bargaining Problem on Divisible GoodsMar 02 2014Two-person bargaining problem is considered as to allocate a number of goods between two players. This paper suggests that any non-trivial division of goods cause a non-zero change on the solution of bargaining. So, a axiom of sharing division is presented, ... More
The security deposit for finitely repeated Prisoner's dilemmaJan 08 2014Under the assumption of complete rationality, Nash equilibrium is the only reasonable strategy (set) of the finitely repeated prisoner's dilemma. In fact, some strategies only slightly deviate from the so-called rationality, and the corresponding payoff ... More
Factorization from an order-theoretic view 1&2Oct 04 2012Drawing inspiration from Emmy Noether'set-theoretic foundations for algebra and Charles Ehresmann's topology without points, we adopt a new order-theoretic approach to ideal theory. For this we emphasize the order of divisibility in factorization and ... More
Environment, morphology and stellar populations of bulgeless low surface brightness galaxiesApr 29 2015Based on the Sloan Digital Sky Survey DR 7, we investigate the environment, morphology and stellar population of bulgeless low surface brightness (LSB) galaxies in a volume-limited sample with redshift ranging from 0.024 to 0.04 and $M_r$ $\leq$ $-18.8$. ... More
Flux qubits in a planar circuit quantum electrodynamics architecture: quantum control and decoherenceJul 05 2014We report experiments on superconducting flux qubits in a circuit quantum electrodynamics (cQED) setup. Two qubits, independently biased and controlled, are coupled to a coplanar waveguide resonator. Dispersive qubit state readout reaches a maximum contrast ... More
Emergence of micro-frequency comb via limit cycles in dissipatively coupled condensatesSep 12 2018Feb 26 2019Self-sustained oscillations, limit cycles, are a fundamental phenomenon unique to nonlinear dynamic systems of high-dimensional phase space. They enable understanding of a wide range of cyclic processes in natural, social and engineering systems. Here ... More
Superconductor-Nanowire Devices from Tunneling to the Multichannel Regime: Zero-Bias Oscillations and Magnetoconductance CrossoverMar 11 2013We present transport measurements in superconductor-nanowire devices with a gated constriction forming a quantum point contact. Zero-bias features in tunneling spectroscopy appear at finite magnetic fields, and oscillate in amplitude and split away from ... More
High-pressure study of superconducting and non-superconducting single crystals of the same nominal composition Rb0.8Fe2Se2Oct 27 2011Two single crystalline samples with the same nominal composition of Rb0.8Fe2Se2 prepared via slightly different precursor routes under the same thermal processing conditions were investigated at ambient and high pressures. One sample was found superconducting ... More
Einstein-Podolsky-Rosen Steering in Quantum Phase TransitionDec 31 2011Jan 28 2012We investigate the Einstein-Podolsky-Rosen (EPR) steering and its criticality in quantum phase transition. It is found that the EPR steerability function of the ground state of XY spin chain exhibits nonanalytic feature in the vicinity of a quantum phase ... More
Quantum No-Cloning Theorem Certified by Bell's TheoremNov 20 2011We investigate the connection between quantum no-cloning theorem and Bell's theorem. Designing some Bell's inequalities, we show that quantum no-cloning theorem can always be certified by Bell's theorem, and this fact in turn reflects that our physical ... More
Chemical doping and high pressure studies of layered beta-PdBi2 single crystalsJun 18 2015We have systematically grown large single crystals of layered compound beta-PdBi2, both the hole-doped PdBi2-xPbx and the electron-doped NaxPdBi2, and studied their magnetic and transport properties. Hall-effect measurement on PdBi2, PdBi1.8Pb0.2, and ... More
Crossings and Nestings of Matchings and PartitionsJan 14 2005Nov 14 2005We present results on the enumeration of crossings and nestings for matchings and set partitions. Using a bijection between partitions and vacillating tableaux, we show that if we fix the sets of minimal block elements and maximal block elements, the ... More
Exploring Quantum Contextuality to Generate True Random NumbersJan 23 2013Jan 25 2013Random numbers represent an indispensable resource for many applications. A recent remarkable result is the realization that non-locality in quantum mechanics can be used to certify genuine randomness through Bell's theorem, producing reliable random ... More
Multimodal Image Super-resolution via Joint Sparse Representations induced by Coupled DictionariesSep 25 2017Mar 08 2018Real-world data processing problems often involve various image modalities associated with a certain scene, including RGB images, infrared images or multi-spectral images. The fact that different image modalities often share certain attributes, such as ... More
Majorana non-locality in hybrid nanowiresDec 10 2017Emergent Majorana bound states (MBSs) in topological superconductors appear capable of providing a naturally fault-tolerant basis for quantum computing. Key to topological protection is the separation, or non-locality, of MBSs, which makes Majorana qubits ... More
A new 111 type iron pnictide superconductor LiFePAug 27 2009A new iron pnictide LiFeP superconductor was found. The compound crystallizes into a Cu2Sb structure containing an FeP layer showing superconductivity with maximum Tc of 6K. This is the first 111 type iron pnictide superconductor containing no arsenic. ... More
Single Crystal Growth and Spin Polarization Measurements of Diluted Magnetic Semiconductor (BaK)(ZnMn)2As2Oct 10 2018Recently a new type diluted magnetic semiconductor (BaK)(ZnMn)2As2 (BZA) with high Cure temperature (Tc) was discovered showing independent spin and charge doping mechanism. This makes BZA a promising material for spintronics devices. Here we report for ... More
Pah and Mid-IR Luminosities as Measures of Star-Formation Rate in Spitzer First Look Survey GalaxiesSep 12 2005Oct 14 2005We present evidence that the 8 $\mu$m (dust) and 24 $\mu$m luminosities of star-forming galaxies are both strongly correlated with their 1.4 GHz and H$\alpha$ luminosities over a range in luminosity of two-to-three orders of magnitude. At the bright end, ... More
Multiwavelength Observations of one Galaxy in Marano FieldSep 29 2005We report the multiwavelength observations of one intermediate redshift (z=0.3884) galaxy in the Marano Field. These data include ISOCAM middle infrared, VLT/FORS2 spectroscopic and photometric data, associated with the ATCA 1.4 GHz radio and ROSAT PSPC ... More
Generalized prisoner's dilemmaMar 14 2014Prisoner's dilemma has been heavily studied. In classical model, each player chooses to either "Cooperate" or "Defect". In this paper, we generalize the prisoner's dilemma with a new alternative which is neither defect or cooperation. The classical model ... More
Iso-vector dipole resonance and shear viscosity in low energy heavy-ion collisionMay 11 2017The ratio of shear viscosity over entropy density in low energy heavy-ion collision has been calculated by using the Green-Kubo method in the framework of an extended quantum molecular dynamics model. After the system almost reaching a local equilibration ... More
Time- and angle-resolved photoemission spectroscopy of solids in the extreme ultraviolet at 500 kHz repetition rateNov 16 2018Feb 13 2019Time- and angle-resolved photoelectron spectroscopy (trARPES) employing a 500 kHz extreme-ultravioled (XUV) light source operating at 21.7 eV probe photon energy is reported. Based on a high-power ytterbium laser, optical parametric chirped pulse amplification ... More
The Meissner and Mesoscopic Superconducting States in 1-4 Unit-Cell FeSe-Films up to 80 KNov 25 2013Recent reports of interface-induced superconductivity in the unit-cell films of FeSe on SrTiO3 with a Tc up to ~ 65+-5 K, highest among the Fe-based superconductors and second only to that of the cuprates, have generated great excitement. Here we show ... More
Selective Area Grown Semiconductor-Superconductor Hybrids: A Basis for Topological NetworksFeb 12 2018Sep 11 2018We introduce selective area grown hybrid InAs/Al nanowires based on molecular beam epitaxy, allowing arbitrary semiconductor-superconductor networks containing loops and branches. Transport reveals a hard induced gap and unpoisoned 2e-periodic Coulomb ... More
A large sample of low surface brightness disc galaxies from the SDSS- II. Metallicities in surface brightness binsApr 21 2010We study the spectroscopic properties of a large sample of Low Surface Brightness galaxies (LSBGs) (with B-band central surface brightness mu0(B)>22 mag arcsec^(-2)) selected from the Sloan Digital Sky Survey Data Release 4 (SDSS-DR4) main galaxy sample. ... More
Galaxy disc central surface brightness distribution in the optical and near-infrared bandsJan 29 2019To study the disc central surface brightness ($\mu_0$) distribution in optical and near-infrared bands, we select 708 disc-dominated galaxies within a fixed distance of 57 Mpc from SDSS DR7 and UKIDSS DR10. Then we fit $\mu_0$ distribution by using single ... More
Comparing the Host Galaxies of Type Ia, Type II and Type Ibc SupernovaeJul 02 2014We compare the host galaxies of 902 supernovae, including SNe Ia, SNe II and SNe Ibc, which are selected by cross-matching the Asiago Supernova Catalog with the SDSS Data Release 7. We further selected 213 galaxies by requiring the light fraction of spectral ... More
The properties of a large sample of low surface brightness galaxies from SDSSOct 11 2009A large sample of low surface brightness (LSB) disk galaxies is selected from SDSS with B-band central surface brightness mu_0(B) from 22 to 24.5 mag arcsec^(-2). Some of their properties are studied, such as magnitudes, surface brightness, scalelengths, ... More
Real-time probing electron dynamics of an atom in a strong infrared laser fieldDec 19 2014We present theoretical studies on real-time probing the electron density evolution of an atom in a strong infrared (IR) laser field with few-cycle near-infrared (NIR) and attosecond extreme-ultraviolet (XUV) pulses. Our results indicate that the electron ... More
Higher order stable generalized finite element method for the elliptic eigenvalue problem with an interface in 1DOct 24 2018We study the generalized finite element methods (GFEMs) for the second-order elliptic eigenvalue problem with an interface in 1D. The linear stable generalized finite element methods (SGFEM) were recently developed for the elliptic source problem with ... More
Growth of solutions to NLS on irrational toriFeb 16 2017We prove polynomial bounds on the growth of higher Sobolev norms for the nonlinear Schrodinger equation set on a torus, in dimension 3, with super-cubic and sub-quintic nonlinearity. Due to improved Strichartz estimates, these bounds are better for irrational ... More
Higher dimensional steady Ricci solitons with linear curvature decayOct 21 2017Nov 06 2017We prove that any noncompact $\kappa$-noncollapsed steady Ricci soliton with nonnegative curvature operator must be rotationally symmetric if it has a linear curvature decay.
Permutation-like Matrix Groups with a Maximal Cycle of Power of Odd Prime LengthJan 07 2015May 09 2015If every element of a matrix group is similar to a permutation matrix, then it is called a permutation-like matrix group. References [4] and [5] showed that, if a permutation-like matrix group contains a maximal cycle of length equal to a prime or a square ... More
Clifford-Wolf homogeneous left invariant $(α,β)$-metrics on compact semi-simple Lie groupsJan 09 2013Dec 03 2013Let $(M,F)$ be a connected Finsler space. An isometry of $(M,F)$ is called a Clifford-Wolf translation (or simply CW-translation) if it moves all points the same distance. The compact Finsler space $(M,F)$ is called restrictively Clifford-Wolf homogeneous ... More
Homogeneous $(α,β)$-spaces with positive flag curvature and vanishing S-curvatureMar 13 2015We give a complete classification of homogeneous $(\alpha,\beta)$-metrics with positive flag curvature and vanishing S-curvature.
Clifford-Wolf homogeneous Finsler metrics on spheresDec 03 2013An isometry of a Finsler space is called Clifford-Wolf translation (CW-translation) if it moves all points the same distance. A Finsler space $(M, F)$ is called Clifford-Wolf homogeneous (CW-homogeneous) if for any $x, y\in M$ there is a CW-translation ... More
Rational Points on Weighted projective SpacesDec 14 1998In this paper,we count the rational points on the weighted projective spaces defined over number fields w.r.t. ``size''. An asymptotic formula which generalizes the result of Schanuel's ``Heights in number fields'' is obtained. Furthermore, we count also ... More
Asymptotic behavior of positively curved steady Ricci SolitonsJul 16 2015Nov 25 2015In this paper, we analyze the asymptotic behavior of $\kappa$-noncollapsed and positively curved steady Ricci solitons and prove that any $n$-dimensional $\kappa$-noncollapsed steady K\"ahler-Ricci soliton with non-negative sectional curvature must be ... More
DeepV2D: Video to Depth with Differentiable Structure from MotionDec 11 2018We propose DeepV2D, an end-to-end differentiable deep learning architecture for predicting depth from a video sequence. We incorporate elements of classical Structure from Motion into an end-to-end trainable pipeline by designing a set of differentiable ... More
Subgeometric Rates of Convergence for Discrete Time Markov Chains under Discrete Time SubordinationJun 17 2017Jan 05 2019In this note, we are concerned with the subgeometric rate of convergence of a Markov chain with discrete time parameter to its invariant measure in the $f$-norm. We clarify how three typical subgeometric rates of convergence are inherited under a discrete ... More
Hall polynomials for tame typeDec 11 2015In the present paper we prove that Hall polynomial exists for each triple of decomposition sequences which parameterize isomorphism classes of coherent sheaves of a domestic weighted projective line $\mathbb X$ over finite fields. These polynomials are ... More
Frobenius morphisms and representations of algebrasJul 18 2003By introducing Frobenius morphisms $F$ on algebras $A$ and their modules over the algebraic closure ${{\bar \BF}}_q$ of the finite field $\BF_q$ of $q$ elements, we establish a relation between the representation theory of $A$ over ${{\bar \BF}}_q$ and ... More
Hall algebras of cyclic quivers and $q$-deformed Fock spacesJul 11 2015Based on the work of Ringel and Green, one can define the (Drinfeld) double Ringel--Hall algebra ${\mathscr D}(Q)$ of a quiver $Q$ as well as its highest weight modules. The main purpose of the present paper is to show that the basic representation $L(\Lambda_0)$ ... More
On bases of quantized enveloping algebrasJul 18 2003We give a systematic description of many monomial bases for a given quantized enveloping algebra and of many integral monomial bases for the associated Lusztig $\mathbb Z[v,v^{-1}]$-form. The relations between monomial bases, PBW bases and canonical bases ... More
Harmonic lasing of x-ray free electron laser: on the way to smaller and cheaperDec 17 2012May 06 2013By utilizing higher harmonics of undulator radiation, harmonic lasing is helpful in the development of compact x-ray free electron lasers (FELs), i.e. reducing its costs and sizes. Harmonic lasing of FELs have been experimentally demonstrated in the low-gain ... More
Q-Hermite polynomials chaos approximation of likelihood function based on q-Gaussian prior in Bayesian inversionAug 03 2018In real applications, the construction of prior and acceleration of sampling for posterior are usually two key points of Bayesian inversion algorithm for engineers. In this paper, q-analogy of Gaussian distribution, q-Gaussian distribution, is introduced ... More
Hardy Spaces over Half-strip DomainsSep 14 2017We define Hardy spaces $H^p(\Omega_\pm)$ on half-strip domain~$\Omega_+$ and $\Omega_-= \mathbb{C}\setminus\overline{\Omega_+}$, where $0<p<\infty$, and prove that functions in $H^p(\Omega_\pm)$ has non-tangential boundary limit a.e. on $\Gamma$, the ... More