Non-maximal closed prime ideals in a unital commutative Banach algebra are accessible

Fuente: arXiv
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Autor principal: Garimella, Ramesh
Formato: Preprint
Publicado: 2025
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author Garimella, Ramesh
author_facet Garimella, Ramesh
contents It is proved that in a commutative unital Banach algebra, every non-maximal closed prime ideal is accessible. Specifically, it can be represented as the intersection of all closed ideals of the algebra that properly contain it. Consequently, all derivations and epimorphisms on commutative unital semi-prime Banach algebras are continuous. Moreover, any separating ideal in a commutative unital Banach algebra is nilpotent and, therefore, a nil ideal.
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institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Non-maximal closed prime ideals in a unital commutative Banach algebra are accessible
Garimella, Ramesh
Functional Analysis
It is proved that in a commutative unital Banach algebra, every non-maximal closed prime ideal is accessible. Specifically, it can be represented as the intersection of all closed ideals of the algebra that properly contain it. Consequently, all derivations and epimorphisms on commutative unital semi-prime Banach algebras are continuous. Moreover, any separating ideal in a commutative unital Banach algebra is nilpotent and, therefore, a nil ideal.
title Non-maximal closed prime ideals in a unital commutative Banach algebra are accessible
topic Functional Analysis
url https://arxiv.org/abs/2505.04849