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arXiv · 1110.6856

Spectral isometries on non-simple C*-algebras

Martin Mathieu·Ahmed R. Sourour
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Abstract

We prove that unital surjective spectral isometries on certain non-simple unital C*-algebras are Jordan isomorphisms. Along the way, we establish several general facts in the setting of semisimple Banach algebras.

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Martin Mathieu, Ahmed R. Sourour. 2011-10-31. Spectral isometries on non-simple C*-algebras. https://arxiv.org/abs/1110.6856

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