Subdifferential of the joint numerical radius

Priyanka Grover; Sushil Singla

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arXiv · 2201.03055

Subdifferential of the joint numerical radius

Priyanka Grover·Sushil Singla

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Abstract

An expression for the subdifferential of the joint numerical radius is obtained. Its applications to the best approximation problems in the joint numerical radius are discussed.

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Priyanka Grover, Sushil Singla. 2022-01-09. Subdifferential of the joint numerical radius. https://arxiv.org/abs/2201.03055

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