A+ CATEGORY SCIENTIFIC UNIT

Spectral characterizations of central elements in Banach algebras

Volume 120 / 1996

Matej Brešar Studia Mathematica 120 (1996), 47-52 DOI: 10.4064/sm-120-1-47-52

Abstract

Let A be a complex unital Banach algebra. We characterize elements belonging to Γ(A), the set of elements central modulo the radical. Our result extends and unifies several known characterizations of elements in Γ(A).

Authors

  • Matej Brešar

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