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Weyl-type theorems for unbounded posinormal operators

被引：0
|
作者：
Gupta, A. [1 ]
Mamtani, K. [2 ]
机构：
[1] Delhi Coll Arts & Commerce, New Delhi, India
[2] Univ Delhi, New Delhi, India
来源：
JOURNAL OF CONTEMPORARY MATHEMATICAL ANALYSIS-ARMENIAN ACADEMY OF SCIENCES | 2017年 / 52卷 / 04期
关键词：
Unbounded posinormal operators; Weyl's theorem; Browder's theorem;
D O I：
10.3103/S1068362317040057
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
For bounded linear operators, the study ofWeyl-type theorems and properties has been of significant interest for several non-normal classes of operators. In this paper, we extend this study to a class of unbounded posinormal operators. We define and study the spectral properties of unbounded posinormal and totally posinormal operators defined on an infinite dimensional complex Hilbert space H. For this class, under certain conditions several Weyl-type theorems and related properties are obtained.
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收藏
页码：191 / 197
页数：7
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