Approximation of cosine functions and Rogosinski type operators

被引:0
|
作者
Campiti, Michele [1 ]
Mazzone, Giusy [1 ]
Tacelli, Cristian [1 ]
机构
[1] Univ Salento, Dept Math, POB 193, I-73100 Lecce, Italy
来源
关键词
Convergence of iterates of trigonometric polynomials; Rogosinski operators; representation of cosine functions;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study some quantitative estimates of the convergence of the iterates of some Rogosinski type operators to their associated cosine functions. We also consider a general cosine counterpart of the quantitative version of Trotter's theorem on the approximation of C-0-semigroups.
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页码:261 / 272
页数:12
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