most citedSpectral isometries on non-simple C*-algebras

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math.FA2011★ 3 cited

Spectral isometries on non-simple C*-algebras

Martin Mathieu, Ahmed R. Sourour

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 setti…