Research Article

Berezin number inequalities for 2 × 2 operator matrices and applications

Published in: Quaestiones Mathematicae
Volume 49 , issue 4 : Entrepreneurship and Africa’s Cultural Context , 2024 , pages: 451–472

DOI: 10.2989/16073606.2025.2592769

Author(s): Messaoud Guesba El Oued University, Algeria, Fuad Kittaneh The University of Jordan, Jordan,

Keywords: 47A08, 47A12, 47A30, 47B15, Berezin number, operator matrix, reproducing kernel, inequality,

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Abstract

In this paper, we present new bounds for the Berezin numbers of 2 × 2 operator matrices, which improve and generalize the existing bounds. Some other related results are also presented.

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Research Article

Berezin number inequalities for 2 × 2 operator matrices and applications

Abstract

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