On the group of linear preservers of the Gau-Wu number

A. Guterman; E. Shen; I. Spitkovsky

doi:10.1016/j.laa.2024.07.011

On the group of linear preservers of the Gau-Wu number

A. Guterman, E. Shen, I. Spitkovsky

Department of Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

The Gau-Wu number is an important matrix invariant describing the geometry of the numerical range. In this work, the group of non-singular linear preservers of the Gau-Wu number is completely characterized.

Original language	English
Pages (from-to)	1-25
Number of pages	25
Journal	Linear Algebra and Its Applications
Volume	700
DOIs	https://doi.org/10.1016/j.laa.2024.07.011
State	Published - 1 Nov 2024

Bibliographical note

Publisher Copyright:
© 2024 Elsevier Inc.

Keywords

Gau-Wu number
Linear preservers
Matrices

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10.1016/j.laa.2024.07.011

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abstract = "The Gau-Wu number is an important matrix invariant describing the geometry of the numerical range. In this work, the group of non-singular linear preservers of the Gau-Wu number is completely characterized.",

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On the group of linear preservers of the Gau-Wu number

Abstract

Bibliographical note

Keywords

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