English

How Associative Can a Non-Associative Moufang Loop Be?

Group Theory 2025-01-07 v1 Combinatorics Probability

Abstract

We prove a non-associative analog to the well-known 58\frac{5}{8} Theorem. Namely, for a finite Moufang loop with nuclear commutators, we show that if the probability that three randomly chosen elements associate is greater than 4364\frac{43}{64}, then the loop must be a group. The bound is tight as demonstrated by the 16-element Octonion loop.

Cite

@article{arxiv.2501.02294,
  title  = {How Associative Can a Non-Associative Moufang Loop Be?},
  author = {Ilan Levin},
  journal= {arXiv preprint arXiv:2501.02294},
  year   = {2025}
}
R2 v1 2026-06-28T20:56:13.054Z