搜索结果: 136-150 共查到“知识库 数学 approximation”相关记录165条 . 查询时间(0.129 秒)
Approximation error bounds via Rademacher's complexity
approximation error model complexity curse of dimension-ality Rademacher's complexity
2010/9/10
Approximation properties of some connectionistic models, commonly used to construct approximation schemes for optimization problems with multivariable functions as admissible solutions, are investigat...
Approximation by certain linear operators preserving x2
Positive linear operator polynomial weighted space degree of approximation
2010/2/25
We investigate certain positive linear operators Ln preserving the functions ek (x)=xk, k=0, 1, and modified operators Ln* which preserve e0 and e2. We show that the error of approximation of f by Ln*...
Equi-Statistical Extension of the Korovkin Type Approximation Theorem
Equi-statistical convergence positive linear operator Korovkin type theorem
2010/2/25
In this paper using equi-statistical convergence, which is stronger than the usual uniform convergence and statistical uniform convergence, we obtain a general Korovkin type theorem. Then, we construc...
Iterative approximation to common fixed points of two nonexpansive mappings in Banach spaces
Sunny nonexpansive retraction common fixed points
2010/9/14
Iterative approximation to common fixed points of two nonexpansive mappings in Banach spaces
Obtuse angle principle for approximation of fixed points of nonlinear mappings
Uniformly smooth Banach spaces Hilbert spaces
2010/9/16
Obtuse angle principle for approximation of fixed points of nonlinear mappings
Approximation of curves by fairness cubic splines
Smoothness Variational curve Fairness spline Cubic spline
2010/9/15
In this paper we present an approximation method of curves by a new type of spline functions called fairness cubic splines from a given Lagrangian data set under fairness constraints. An approximating...
INTRODUCTION.Itisthepurposeofthispapertopresentsomeresults,ontheproblemofinterpolationandapproximationtoafunctiouf(z),analyticonaclosedlimitedpointsetEinthecomplexz-planewhosecomplementKisconnectedand...
Subdivision algorithm (Stationary or Non-stationary) is one of
the most active and exciting research topics in wavelet analysis
and applied mathematical theory. In multidimensional non-stationary
s...
Steklov eigenvalue problem of Helmholtz equation is considered in the
present paper. Steklov eigenvalue problem is reduced to a new
variational formula on the boundary of a given domain, in which th...
THE GLOBAL DUFORT-FRANKEL DIFFERENCE APPROXIMATION FOR NONLINEAR REACTION-DIFFUSION EQUATIONS
globel Dufort-Frankel method reaction-diffusion eqution global attractor error estimate numerical experiments
2007/12/12
In this paper, the initial value problem of nonlinear reaction-diffusion
equation is considered. The Dufort-Frankel finite difference
approximation for the long time scheme is given for the $d$-dime...
In the author's previous paper [13], a Galerkin/Least-Square type finite
element method was proposed and analyzed for the stationary N-S equations. The
method is consistent and stable for any combin...
A NONCONFORMING ANISOTROPIC FINITE ELEMENT APPROXIMATION WITH MOVING GRIDS FOR STOKES PROBLEM
Stokes problem Nonconforming finite element Anisotrop Moving grids Error estimate
2007/12/12
This paper is devoted to the five parameters nonconforming finite
element schemes with
moving grids for velocity-pressure mixed formulations of the nonstationary
Stokes problem in 2-D. We show that...
ON NONLINEAR GALERKIN APPROXIMATION
2007/12/11
Nonlinear Galerkin methods are numerical schemes adapted well to the long
time integration of evolution partial differential equations.
The aim of this paper is to
discuss such schemes for reaction...
The Approximation Theorem of Convolution Operator in Δ~p Set-valued Function Space
Set-valued function random set convolution operator
2007/12/11
The paper is a contribution to the problem of approximating random set with values in a separable Banach space. This class of set-valued function is widely used in many areas. We investigate the prope...
A BOUNDARY ELEMENT APPROXIMATION OF A SIGNORINI PROBLEM WITH FRICTION OBEYING COULOMB LAW
2007/12/11
In this work, a Signorini problem with Coulomb friction in two dimensional elasticity is considered. Based on a new representation of the derivative of the double-layer potential, the original problem...