Ultrametric Banach Algebras

China Internet Development Report 2018: Blue Book of World Internet Conference 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.\n\nThe 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.Ultrametric Banach Algebras is written by Escassut Alain and published by World Scientific. ISBNs for Ultrametric Banach Algebras are 9789812775603, 9812775609 and the print ISBNs are 9789812381941, 9812381945.