Article ID Journal Published Year Pages File Type
4599311 Linear Algebra and its Applications 2014 18 Pages PDF
Abstract

We discuss the form of all epimorphisms of T∞(F)T∞(F) – the group of all infinite upper triangular matrices over a field, into itself. We show that every such epimorphism is a composition of some standard maps. Moreover, we present an analogous result for UT∞(F)UT∞(F). We use the obtained results to describe the groups of automorphisms of these groups.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
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