Upper bounds for the numerical radii of the tensor products of operators

Year 2025, Volume: 8 Issue: 4, 217 - 227, 15.12.2025

Messaoud Guesba , Fuad Kıttaneh

https://doi.org/10.33205/cma.1756619

Abstract

In this paper, we develop new upper bounds for the numerical radii of the tensor products of two operators. These inequalities improve and generalize some earlier related inequalities.

Keywords

Numerical radius , operator norm , tensor product , inequality

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