Norms on complex matrices induced by complete homogeneous symmetric polynomials

We introduce a remarkable new family of norms on the space of n×n$n \times n$ complex matrices. These norms arise from the combinatorial properties of symmetric functions, and their construction and validation involve probability theory, partition combinatorics, and trace polynomials in non‐commutin...

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Bibliographic Details
Published in:The Bulletin of the London Mathematical Society 2022-12, Vol.54 (6), p.2078-2100
Main Authors: Aguilar, Konrad, Chávez, Ángel, Garcia, Stephan Ramon, Volčič, Jurij
Format: Article
Language:English
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Summary:We introduce a remarkable new family of norms on the space of n×n$n \times n$ complex matrices. These norms arise from the combinatorial properties of symmetric functions, and their construction and validation involve probability theory, partition combinatorics, and trace polynomials in non‐commuting variables. Our norms enjoy many desirable analytic and algebraic properties, such as an elegant determinantal interpretation and the ability to distinguish certain graphs that other matrix norms cannot. Furthermore, they give rise to new dimension‐independent tracial inequalities. Their potential merits further investigation.
ISSN:0024-6093
1469-2120
DOI:10.1112/blms.12679