Additive preservers of mutual strong Birkhoff-James orthogonality on finite-dimensional $C^\ast$-algebras

Fuente: arXiv
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Main Authors: Kuzma, Bojan, Stefanović, Srdjan
Format: Preprint
Published: 2026
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author Kuzma, Bojan
Stefanović, Srdjan
author_facet Kuzma, Bojan
Stefanović, Srdjan
contents We describe additive surjections on direct sum of matrix algebras that preserve singularity in one direction. As an application, we classify additive surjections on finite-dimensional $C^\ast$-algebras that preserve mutual strong Birkhoff-James orthogonality in one direction.
format Preprint
id arxiv_https___arxiv_org_abs_2605_08096
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Additive preservers of mutual strong Birkhoff-James orthogonality on finite-dimensional $C^\ast$-algebras
Kuzma, Bojan
Stefanović, Srdjan
Rings and Algebras
Functional Analysis
Operator Algebras
Primary: 46L05, 47B49, Secondary: 47A30, 15A04
We describe additive surjections on direct sum of matrix algebras that preserve singularity in one direction. As an application, we classify additive surjections on finite-dimensional $C^\ast$-algebras that preserve mutual strong Birkhoff-James orthogonality in one direction.
title Additive preservers of mutual strong Birkhoff-James orthogonality on finite-dimensional $C^\ast$-algebras
topic Rings and Algebras
Functional Analysis
Operator Algebras
Primary: 46L05, 47B49, Secondary: 47A30, 15A04
url https://arxiv.org/abs/2605.08096