Some Properties of K-Frames in Hilbert Spaces

被引:105
作者
Xiao, Xiangchun [1 ]
Zhu, Yucan [1 ]
Gavruta, Laura [2 ]
机构
[1] Fuzhou Univ, Dept Math & Comp Sci, Fuzhou 350002, Peoples R China
[2] Politehn Univ Timisoara, Dept Math, Timisoara 300006, Romania
关键词
K-frame; ordinary frame; Bessel sequence;
D O I
10.1007/s00025-012-0266-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
K-frames were recently introduced by GvruA a pound in Hilbert spaces to study atomic systems with respect to a bounded linear operator. From her discussions there are many differences between K-frames and ordinary frames, so in this paper we further discuss the interchangeability of two Bessel sequences with respect to a K-frame, where K is a bounded linear operator with closed range. We also give several methods to construct K-frames. In the end we discuss the stability of a more general perturbation for K-frame.
引用
收藏
页码:1243 / 1255
页数:13
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