A binary invariant of matrix mutation
Combinatorics
2023-11-08 v1 Representation Theory
Abstract
We construct a binary mutation invariant for skew-symmetric integer matrices. The invariant is not an integer congruence invariant for matrices of odd size: we provide examples of congruent such matrices with different values for the invariant.
Cite
@article{arxiv.2311.03601,
title = {A binary invariant of matrix mutation},
author = {Roger Casals},
journal= {arXiv preprint arXiv:2311.03601},
year = {2023}
}
Comments
9 pages