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arXiv · 2108.09863

Kippenhahn Varieties and the Weyl Calculus for Several Matrices I

Brian Jefferies
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Abstract

The paper reviews properties of the Weyl functional calculus for several operators and its relation to the generalised numerical range of $n$ hermitian matrices. The support and singular support of the Weyl functional calculus for $n$ hermitian matrices are determined by Kippenhahn varieties in algebraic geometry.

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BibTeXRIS

Brian Jefferies. 2021-08-22. Kippenhahn Varieties and the Weyl Calculus for Several Matrices I. https://arxiv.org/abs/2108.09863

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