Antieigenvalue inequalities in operator theory

Morteza Seddighin

International Journal of Mathematics and Mathematical Sciences, 2004, vol. 2004, 1-7

Abstract:

We will prove some inequalities among trigonometric quantities of two and three operators. In particular, we will establish an inequality among joint trigonometric quantities of two operators and trigonometric quantities of each operator. As a corollary, we will find an upper bound and a lower bound for the total joint antieigenvalue of two positive operators in terms of the smallest and largest eigenvalues of these operators.

Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:820218

DOI: 10.1155/S0161171204403615

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