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JOURNALS // Proceedings of the Yerevan State University, series Physical and Mathematical Sciences // Archive

Proceedings of the YSU, Physical and Mathematical Sciences, 1989 Issue 1, Pages 3–6 (Mi uzeru842)

Mathematics

On the asymptotic property of normal operators commutators in weak, strong and the strongest $B$-module operator typologies

M. I. Karakhanyan

Yerevan State University, Faculty of Mathematics and Mechanics

Abstract: The asymptotic variant of Fugled–Putnam classic theorem is proved for the pair of limited normal operator acting in the Hilbert $B$-module $E$ in weak, strong and the strongest $B$-module operator topologies. Earlier, the asymptotic variants of the above mentioned theorem have been obtained in the papers [1–4].

UDC: 513.8

Received: 10.03.1988
Accepted: 07.06.1989



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