supported by the National Natural Science Foundation of China(No.11426179);the National Natural Science Foundation of China(Nos.10871132,11271263);the Key Scientific Research Fund of Xihua University(No.z1312624);the Foundation of Sichuan Educational Committee(No.14ZA0112);the Preeminent Youth Fund for School of Science in Xihua University;the Beijing Natural Science Foundation(No.1132001);BCMIIS
In this paper, we study optimal recovery (reconstruction) of functions on the sphere in the average case setting. We obtain the asymptotic orders of average sampling numbers of a Sobolev space on the sphere with a G...
supported by the National Natural Science Foundations of China(Grant No.11271263).
For the approximation in L_(p)-norm,we determine the weakly asymptotic orders for the simultaneous approximation errors of Sobolev classes by piecewise cubic Hermite interpolation with equidistant knots.For p=1,∞,we ...
Supported by the Natural Science Foundation of China (No. 11271263, 11371258)
This paper is devoted to study direct and converse approximation theorems of the generalized Bemstein operators Cn (f, sn,x) via so-called unified modulus ωφλ^2 (f,t), 0 ≤ λ ≤1. We obtain main results as fol...