On inequalities for eigenvalues of 2 × 2 matrices with Schatten–von Neumann entries

Published in: Quaestiones Mathematicae
Volume 39 , issue 2 : Entrepreneurship and Africa’s Cultural Context , 2024 , pages: 145–152

DOI: 10.2989/16073606.2015.1031849

Author(s): Michael Gil’ Department of Mathematics, Israel,

Keywords: 47A75, 47B10, 47A56, 47A75, 47B10, 47A56,

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Let SN_r (r ≥ 1) denote the Schatten-von Neumann ideal of compact operators in a separable Hilbert space. For the block matrix

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