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arXiv · 2011.02942

Subset Representations and Eigenvalues of the Universal Intertwining Matrix

Dirk Siersma·Wilberd van der Kallen
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Abstract

We solve a combinatorial question concerning eigenvalues of the universal intertwining endomorphism of a subset representation. This is then applied to justify the evaluation of the Eisenbud-Levine-Khimshiashvili (ELK) signature formula for the gradient index at a degenerate star in arXiv:2001.10882

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Dirk Siersma, Wilberd van der Kallen. 2021-03-06. Subset Representations and Eigenvalues of the Universal Intertwining Matrix. https://doi.org/10.1016/j.jpaa.2022.107024

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