English

Rules of Three for commutation relations

Rings and Algebras 2016-12-06 v2 Combinatorics

Abstract

We investigate the following surprisingly widespread phenomenon which we call The Rule of Three: in order for a particular kind of commutation relation to hold for subsequences of elements of a ring labeled by any subset of indices, it is enough that these relations hold for subsets of size one, two, and three.

Keywords

Cite

@article{arxiv.1608.05042,
  title  = {Rules of Three for commutation relations},
  author = {Jonah Blasiak and Sergey Fomin},
  journal= {arXiv preprint arXiv:1608.05042},
  year   = {2016}
}

Comments

23 pages, 5 figures. Version 2: minor changes, final version to appear in Journal of Algebra

R2 v1 2026-06-22T15:22:36.000Z