approximation相关论文
Characterization of image spaces of Riemann-Liouville fractional integral operators on Sobolev space
Fractional operators are widely used in mathematical models describing abnormal and nonlocal phenomena.Although there ar......
评估光电系统点目标成像性能或激光远场效果时，通常采用斯特雷尔比作为评估基准，且在工程应用通常采用其近似方法作为分析手段。为更......
穿过大气湍流的高斯激光脉冲在时间域的展宽行为与高斯脉冲通过理想高斯滤波器后的时域展宽行为相似。因此，为了激光通信信道仿真的......
基于成熟的相函数近似方法Delta-M和Delta-fit，解释了结合相函数矩不变要求和特定角度范围误差最小化要求这一组合方案Delta-combin......
针对提高反射相位延迟测量速度和精度的应用需求，研发了一种以起偏器-棱镜-检偏器(PPA)为光路结构的测量系统，基于最小二乘法，给出了......
We revisit Auslander-Buchweitz approximation theory and find some relations with cotorsion pairs and model category stru......
Graph coloring has a wide range of real world applications,such as in the operations research,communication network,comp......
This paper is concerned with the Wong-Zakai approximations given by a stationary process via the Wiener shift and thei......
The Jaynes–Cummings model with or without rotating-wave approximation plays a major role to study the interaction betwe......
Recently,Hoang et al.(2021)discussed our paper Zou et al.(2020).In our paper,we made a statement that Dai and Bird(1981)......
In this note, we consider （2） assuming that f satisfies the following conditions（f<sub>1</sub>） and（f<sub>2</sub>）. We will de......
Let f be a C 1 diffeomorphisim of smooth Riemannian manifold and preserve a hyperbolic ergodic measure μ. We prove that......
Let Γ be a closed smooth Jordan curve in the complex plane. In this paper, with the help of a class of fundamental func......
We discuss the best approximation of periodic functions by trigonometric polynomials and the approximation by Fourier pa......
Saddlepoint approximations for the studentized compound Poisson sums with no moment conditions in audit sampling are der......
A Jackson type inequality in Q p spaces is established, i.e., for any f (z) = Σ∞ j=0 ajzj ∈ Qp , 0≤p 【 ∞, a 】 1, ......
In this paper, based on existing symmetric multiwavelets, we give an explicit algorithm for constructing multiwavelets w......
A general result is obtained which relates the entropy numbers of compact maps on Hilbert space to its approximation num......
A necessary and sufficient condition for completeness of systems of exponentials with a weightin Lp is established and a......
The present paper is concerned with problems of the strong uniqueness of the best approximation and the characterization......
The NLS approximation for two dimensional deep gravity waves Dedicated to Professor Jean-Yves Chemin
This article is concerned with in?nite depth gravity water waves in two space dimensions. We consider this system expres......
In this paper, we consider the problem of finding sparse solutions for underdetermined systems of linear equations, whic......
Assume that(X,d,μ) is a space of homogeneous type in the sense of Coifman and Weiss(1971,1977). In this article, motiva......
Sparse optimization has attracted increasing attention in numerous areas such as compressed sensing, financial optimizat......
The following Poissons equation with the Stokes boundary condition is dealt with outside S, at infinity,where S is refer......
The purpose of stochastic approximation (SA) is to find the roots of f(·) or the maximiz-er (minimizer) of L(·......
随机的近似算法的锋利的集中率为在寻求为根的未知回归功能的衍生物是零的盒子被给。获得的集中率为为慢慢地减少的步尺寸突然地与......
In this paper we give several existence and effective results for theorems of Dirichletand Minkowski on simultaneous Dio......
采用密度泛函理论的局域密度近似(Local Density Approximation,LDA)和广义梯度近似(Generalized Gradient Approximation,GGA)方......
On the Simple Connectivity of Fatou Componets Chun Lei CAO Yue Fei WANGAbstract We shall show that for certain holomor......
The electronic structures,absorption spectra and colors of Cu are calculated.Calculations are performed in the GW approx......
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1IntroductionIswelknownthatchedhedprofileofthedifusedjunction (DJ) isaGausianoracomplementaryerorfunction, anditisi......
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1IntroductionThemodesofacavitywithsuper -Gausianreflectivityareknownassuper-Gausianbeams, theydescribeawholefam......
Design and Implementation of the Motion Compensation Module for HDTV Video Decoder……………………………WANG Tao(王 涛),......
It is difficult to get an exact solution to Schrodinger equation foran atom-molecule collision.The approximate solution......
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逼近论及其应用(英文版)《逼近论及其应用》(Journal of Approximation Theory and Its Applications)是国际性的英文版数学杂志......
本文提出了一种有效而经济的计算离子液体体系的半经验分子动力学方法——阶梯平均近似(SAA)方法.计算了1073K的NaCl熔盐的径向分......
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In this paper, an adaptive estimation algorithm is proposed for non-linear dynamic systems with unknown static parameter......
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Approximation techniques are useful for implementing pattern recognizers, communication decoders and sensory processing ......
A Cryogenic 10-bit Successive Approximation Register Analog-to-Digital Converter Design with Modifie
A 10-bit 500 kHz low-power successive approximation register(SAR)analog-to-digital converter(ADC)for cryogenic infrared ......
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A topology method is presented in this paper to reveal flow structure occurring inside turbomachinery,in which near wall......
Numerical Study of the Effect of Imaginary Circle Diameter and Initial Flow Field on the Aerodynamic
In this paper, the effect of the imaginary circle diameter opi and the initial flow field on the aerodynamic field in a ......
When condensation occurs in supersonic flow fields, the flow is thected by the latent heat released. In the present stud......
Simulation of Heat Transfer and Hydrodynamics over a Free Rotating Disk Using an Improved Radial Vel
The paper presents results of simulation of turbulent heat transfer and hydrodynamics over a free rotating disk using a......
