On the Essential Numerical Spectrum of Operators on Banach Spaces

被引：1

作者：

Abdelhedi, Bouthaina ^{[1
]}

Boubaker, Wissal ^{[1
]}

Moalla, Nedra ^{[1
]}

机构：

[1] Fac Sci Sfax, Dept Math, BP 1171, Sfax 3000, Tunisia

来源：

FILOMAT | 2019年 / 33卷 / 07期

关键词：

Spectrum; Numerical spectrum; Numerical range; Essential numerical range; Essential growth bound; RANGE;

D O I：

10.2298/FIL1907191A

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The purpose of this paper is to define and develop a new notion of the essential numerical spectrum sigma(en)(.) of an operator on a Banach space X and to study its properties. Our definition is closely related to the essential numerical range W-e(.).

引用

页码：2191 / 2199

页数：9

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