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Ultrametric Banach Algebras Alain Escassut

  • SKU: BELL-1077996
Ultrametric Banach Algebras Alain Escassut
$ 31.00 $ 45.00 (-31%)

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Ultrametric Banach Algebras Alain Escassut instant download after payment.

Publisher: World Scientific Publishing Company
File Extension: PDF
File size: 11.39 MB
Pages: 290
Author: Alain Escassut
ISBN: 9789812381941, 9812381945
Language: English
Year: 2003

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Ultrametric Banach Algebras Alain Escassut by Alain Escassut 9789812381941, 9812381945 instant download after payment.

In this book, ultrametric Banach algebras are studied with the help of topological considerations, properties from affinoid algebras, and circular filters which characterize absolute values on polynomials and make a nice tree structure. The Shilov boundary does exist for normed ultrametric algebras.

In uniform Banach algebras, the spectral norm is equal to the supremum of all continuous multiplicative seminorms whose kernel is a maximal ideal. Two different such seminorms can have the same kernel. Krasner-Tate algebras are characterized among Krasner algebras, affinoid algebras, and ultrametric Banach algebras. Given a Krasner-Tate algbebra A=K{t}[x], the absolute values extending the Gauss norm from K{t} to A are defined by the elements of the Shilov boundary of A.

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