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Abstract
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International Journal of Mathematics and Mathematical Sciences
Volume 30 (2002), Issue 7, Pages 393-397
doi:10.1155/S0161171202012929

Strongly exposed points in the unit ball of trace-class operators

Kourosh Nourouzi

Department of Mathematics, KNT University of Technology, 322 West Mirdamad, Ave. 19696, P.O. Box 15875-4416, Tehran, Iran

Abstract

A theorem of Arazy shows that every extreme point of the unit ball of trace-class operators is strongly exposed. We give this result a simpler and direct proof here.