Local spectrum and Kaplansky's theorem on algebraic operators

Volume 75 / 1998

Driss Drissi Colloquium Mathematicum 75 (1998), 159-165 DOI: 10.4064/cm-75-2-159-165

Abstract

Using elementary arguments we improve former results of P. Vrbová concerning local spectrum. As a consequence, we obtain a new proof of Kaplansky’s theorem on algebraic operators on a Banach space.

Authors

  • Driss Drissi

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