A. R. Esayan, “On estimating the spectrum of the sum of positive semi-commuting operators”, Sibirsk. Mat. Zh., 1966, Volume 7, Number 2,Pages <nobr>460

JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 1966 Volume 7, Number 2, Pages 460–464 (Mi smj5275)

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On estimating the spectrum of the sum of positive semi-commuting operators

A. R. Esayan

UDC: 513.881

Received: 02.03.1965

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