William Q. Erickson

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20232026

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Showing 2023 · math.COShow all

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math.CO2023

Stanley decompositions of modules of covariants

William Q. Erickson, Markus Hunziker

Let $H$ be a complex reductive group, with finite-dimensional representations $W$ and $U$ . The module of covariants for $W$ of type $U$ is the space of all $H$ -equivariant polynomi…

math.CO2023

Stanley decompositions of rings of invariants and certain highest weight Harish-Chandra modules

William Q. Erickson, Markus Hunziker

The first half of this paper is largely expository, wherein we present a systematic combinatorial approach to the theory of polynomial (semi)invariants and multilinear invariants o…