Kahle–Newman Cohen–Lenstra conjecture for random hypertree torsion
Let be an odd prime, let be the random hypertree in the paper, and let denote the -torsion subgroup of . For a finite abelian group , write for its automorphism group.
Kahle–Newman conjecture. For every finite abelian -group ,
This is the Cohen–Lenstra limiting distribution. The source says the stronger version is false for , while the odd-prime case remains open; it would imply the stated limiting distribution for the mod- first Betti number.
References
Primary source
András Mészáros, “Using dense graph limit theory to count cocycles of random simplicial complexes”, arXiv:2509.06559 (2025).
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