Distribution of the cokernels of determinantal row-sparse matrices
Probability
2026-01-08 v2 Combinatorics
Number Theory
Abstract
We study the distribution of the cokernels of random row-sparse integral matrices according to the determinantal measure from a structured matrix with a parameter . Under a mild assumption on the growth rate of , we prove that the distribution of the -Sylow subgroup of the cokernel of converges to that of Cohen--Lenstra for every prime . Our result extends the work of A. M\'esz\'aros which established convergence to the Cohen--Lenstra distribution when and for all positive integers .
Keywords
Cite
@article{arxiv.2505.11700,
title = {Distribution of the cokernels of determinantal row-sparse matrices},
author = {Jungin Lee and Myungjun Yu},
journal= {arXiv preprint arXiv:2505.11700},
year = {2026}
}
Comments
26 pages, to appear in Israel J. Math