Subset Representations and Eigenvalues of the Universal Intertwining Matrix
Combinatorics
2022-02-04 v2
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
Cite
@article{arxiv.2011.02942,
title = {Subset Representations and Eigenvalues of the Universal Intertwining Matrix},
author = {Dirk Siersma and Wilberd van der Kallen},
journal= {arXiv preprint arXiv:2011.02942},
year = {2022}
}
Comments
7 pages; Corollary added