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复曲线上的Jackson型定理
引用本文:涂天亮.复曲线上的Jackson型定理[J].华北水利水电学院学报,2007,28(3):104-106,112.
作者姓名:涂天亮
作者单位:华北水利水电学院,河南,郑州,450011
摘    要:设Γ是平面上的闭光滑Jordan曲线,f∈C(Γ).利用Herm ite插值的基多项式构建一种连续函数插值,一致收敛于f∈C(Γ),且其逼近度和实区间上Jackson定理的逼近度是一样的.

关 键 词:复曲线  插值  一致逼近  逼近阶.
文章编号:1002-5634(2007)03-0104-03
修稿时间:2007-03-102007-04-20

Jackson Type Theorem on a Complex Curve
TU Tian-liang.Jackson Type Theorem on a Complex Curve[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2007,28(3):104-106,112.
Authors:TU Tian-liang
Affiliation:North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011 ,China
Abstract:Let Γ be a closed smooth Jordan curve in the complex plane,and f∈C(Γ).With the help of a class of fundermental functions of Hermite interpolotion,a continuons function interpolation is put forward,which uniformly approximates to f(z)∈C(Γ) with the same order of approximation as that in Jackson theorem on real interval.
Keywords:a complex curve  interpolation  uniform approximation  order df approximation
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