On Optimal Estimate of the Block Orthogonal Greedy Algorithm for g-Frames

被引：0
|
作者：
Poumai, Khole Timothy [1 ]
Deep, Sunder [2 ]
Kaushik, S. K. [3 ]
机构：
[1] Univ Delhi, Motilal Nehru Coll, Dept Math, Delhi, India
[2] Univ Delhi, Dept Math, Delhi, India
[3] Univ Delhi, Kirori Mal Coll, Dept Math, Delhi, India
来源：
NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION | 2021年 / 42卷 / 12期
关键词：
Block orthogonal greedy algorithm; compressed sensing; g-frames; SIGNALS;
D O I：
10.1080/01630563.2021.1960860
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We obtain an optimal approximation of the block orthogonal greedy algorithm with regard to g-frames in Hilbert spaces and prove an optimal approximation result analogous to the result obtained by E. D. Livshitz [15] using dictionaries.
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页码：1393 / 1409
页数：17
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