Perturbations of Invertible Operators and Stability of g-Frames in Hilbert Spaces

被引:9
作者
Guo, Xunxiang [1 ]
机构
[1] Southwestern Univ Finance & Econ, Dept Math, Chengdu 611130, Peoples R China
关键词
G-frame; G-Riesz basis; perturbation; invertible operator; stability; G-RIESZ BASES;
D O I
10.1007/s00025-013-0323-9
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we study the perturbations of invertible operators and stability of g-frames in Hilbert spaces. In particular, we obtain some conditions under which the perturbations of an invertible operator are still an invertible operator, the perturbations of a right invertible operator or a surjective operator are still a right invertible operator or surjective operator. Then we apply the perturbations of invertible operators to study the stability of g-frames which is close related with the invertibility (or right invertibility) property of operators.
引用
收藏
页码:405 / 421
页数:17
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