Spectrally isometric elementary operators

Martin Mathieu, Matthew Young

Research output: Contribution to journalArticlepeer-review

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Abstract

We present criteria for unital elementary operators (of small length) on unital semisimple Banach algebras to be spectral isometries. The surjective ones among them turn out to be algebra automorphisms.
Original languageEnglish
Pages (from-to)33–49
JournalStudia Mathematica
Volume236
Early online date07 Sept 2016
DOIs
Publication statusPublished - 2017

Keywords

  • Spectral isometries, elementary operators, Jordan isomorphisms.

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