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Main Author: Ettayb, Jawad
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2305.18401
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author Ettayb, Jawad
author_facet Ettayb, Jawad
contents This paper deals with the condition pseudospectrum and essential condition pseudospectrum of operator pencils on n.a Banach spaces. We give a characterization of the condition pseudospectrum of operator pencils on n.a Banach spaces, the relation between the condition pseudospectrum of $(A,B)$ and the usual spectrum in a n.a valued field is investigated. Finally, we give a characterization of the essential spectrum of $(A,B)$ where $A\neq B$ by means of n.a completely continuous operators and we give some examples.
format Preprint
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institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Condition pseudospectrum of operator pencils on non-archimedean Banach spaces
Ettayb, Jawad
Functional Analysis
This paper deals with the condition pseudospectrum and essential condition pseudospectrum of operator pencils on n.a Banach spaces. We give a characterization of the condition pseudospectrum of operator pencils on n.a Banach spaces, the relation between the condition pseudospectrum of $(A,B)$ and the usual spectrum in a n.a valued field is investigated. Finally, we give a characterization of the essential spectrum of $(A,B)$ where $A\neq B$ by means of n.a completely continuous operators and we give some examples.
title Condition pseudospectrum of operator pencils on non-archimedean Banach spaces
topic Functional Analysis
url https://arxiv.org/abs/2305.18401