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Abstract
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International Journal of Mathematics and Mathematical Sciences
Volume 2004 (2004), Issue 41-44, Pages 2273-2278
doi:10.1155/S0161171204310124

Operators commuting with the shift on sequence spaces

J. Prada

Departamento de Matemáticas, Universidad de Salamanca, Salamanca 37008, Spain

Abstract

A complete characterization of shift-invariant operators that are isomorphisms is given in certain sequence spaces. Also given is a sufficient condition for an operator commuting with a shift-invariant operator to be shift invariant.