首页 | 本学科首页   官方微博 | 高级检索  
     检索      

一类奇三角插值多项式算子的收敛性
引用本文:金钰,周春梅.一类奇三角插值多项式算子的收敛性[J].内江师范学院学报,2014(6):17-20.
作者姓名:金钰  周春梅
作者单位:宁夏师范学院数学与计算机科学学院,宁夏固原756000
基金项目:宁夏师范学院创新团队项目(ZY201212); 宁夏师范学院校级项目(YB201348)
摘    要:利用两点修正的方法构造了一类奇三角插值算子,重点证明该算子对以2π为周期的连续奇函数在全实轴上一致收敛,并且进一步讨论其逼近度.

关 键 词:三角插值多项式  一致收敛  最佳收敛阶

On the Convergence for a Class of Odd Trigonometric Interpolation Polynomial Operators
JIN Yu,ZHOU Chun-mei.On the Convergence for a Class of Odd Trigonometric Interpolation Polynomial Operators[J].Journal of Neijiang Teachers College,2014(6):17-20.
Authors:JIN Yu  ZHOU Chun-mei
Institution:(School of Mathematics and Computer Science, Ningxia Normal University,Guyuan, Ningxia 756000, China)
Abstract:The paper introduces an odd Trigonometric polynomial operator H, (f: r,x) (where r is a given natural num-ber) based on these values of f(x) (where f(x) ∈ C2π and f(x) are even functions) on these nodes H. (f: r,x) uniformly converge to f (x) on the total real axis. The approximation order of H. (f:r,x) reaches the rest ap- proximation order when used to approximate to f(x) wheref(x) ∈ C2π (0 _〈j gr -- 1) and f(x) is odd function
Keywords:modification of odd trigonometric interpolation polynomial  uniform convergence  best Convergence order
本文献已被 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号