The $2$-torsion of determinantal hypertrees is not Cohen-Lenstra
Combinatorics
2024-04-04 v1 Probability
Abstract
Let be a -dimensional determinantal hypertree on vertices. Kahle and Newman conjectured that the -torsion of asymptotically follows the Cohen-Lenstra distribution. For , we disprove this conjecture by showing that given a positive integer , for all large enough , we have We also show that is a bad cosystolic expander with positive probability.
Keywords
Cite
@article{arxiv.2404.02308,
title = {The $2$-torsion of determinantal hypertrees is not Cohen-Lenstra},
author = {András Mészáros},
journal= {arXiv preprint arXiv:2404.02308},
year = {2024}
}