Subset Representations and Eigenvalues of the Universal Intertwining Matrix
arXiv:2011.02942 · doi:10.1016/j.jpaa.2022.107024
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
7 pages; Corollary added