Cyclic group representations for relation algebras $57_{65}$ and $63_{65}$

Fuente: arXiv
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1. Verfasser: Alm, Jeremy F.
Format: Preprint
Veröffentlicht: 2026
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author Alm, Jeremy F.
author_facet Alm, Jeremy F.
contents We exhibit finite cyclic group representations for relation algebras $57_{65}$ and $63_{65}$. As a consequence, of the ten symmetric integral RAs on four atoms having at least one flexible atom, all are now known to have a representation over a finite cyclic group except for $33_{65}$, which is not even known to be finitely representable.
format Preprint
id arxiv_https___arxiv_org_abs_2604_03932
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Cyclic group representations for relation algebras $57_{65}$ and $63_{65}$
Alm, Jeremy F.
Logic
Group Theory
03G15
We exhibit finite cyclic group representations for relation algebras $57_{65}$ and $63_{65}$. As a consequence, of the ten symmetric integral RAs on four atoms having at least one flexible atom, all are now known to have a representation over a finite cyclic group except for $33_{65}$, which is not even known to be finitely representable.
title Cyclic group representations for relation algebras $57_{65}$ and $63_{65}$
topic Logic
Group Theory
03G15
url https://arxiv.org/abs/2604.03932