Norm Estimates for Hermitian Derivations

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Published: Mar 23, 2022

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I. O. Okwany
Department of Pure and Applied Mathematics, Jaramogi Oginga Odinga University of Science and Technology, P. O. Box 210-40601, Bondo-Kenya
N. B. Okelo
Department of Pure and Applied Mathematics, Jaramogi Oginga Odinga University of Science and Technology, P. O. Box 210-40601, Bondo-Kenya
O. Ongati
Department of Pure and Applied Mathematics, Jaramogi Oginga Odinga University of Science and Technology, P. O. Box 210-40601, Bondo-Kenya

Abstract

In this paper, we show that δP,Q has a lower bound and is utmost equal to the sum of norms of P and Q and also that δP,Q is Hermitian and is bounded above by its numerical radius. Finally, we give power bounds for numerical radii of the δP,Q.

Article Details

Issue
Vol. 2022 (2022)
Section
Research Articles