Commutativity preserving mappings in Banach algebras
Rings and Algebras
2026-05-11 v1 Functional Analysis
Abstract
Let and be unital complex Banach algebras having no quotients isomorphic to or . Assume additionally that is semisimple. If a surjective additive mapping satisfies for all , then there exist a surjective direct sum of an additive homomorphism and an additive anti-homomorphism , an invertible element , and an additive mapping such that for all .
Keywords
Cite
@article{arxiv.2605.07666,
title = {Commutativity preserving mappings in Banach algebras},
author = {M. Brešar and G. M. Escolano and A. Peralta and A. R. Villena},
journal= {arXiv preprint arXiv:2605.07666},
year = {2026}
}