English

Finitely presented algebras and groups defined by permutation relations

Rings and Algebras 2008-10-03 v1

Abstract

The class of finitely presented algebras over a field KK with a set of generators a1,...,ana_{1},..., a_{n} and defined by homogeneous relations of the form a1a2...an=aσ(a)aσ(2)...aσ(n)a_{1}a_{2}... a_{n} =a_{\sigma (a)} a_{\sigma (2)} ... a_{\sigma (n)}, where σ\sigma runs through a subset HH of the symmetric group \Symn\Sym_{n} of degree nn, is introduced. The emphasis is on the case of a cyclic subgroup HH of \Symn\Sym_{n} of order nn. A normal form of elements of the algebra is obtained. It is shown that the underlying monoid, defined by the same (monoid) presentation, has a group of fractions and this group is described. Properties of the algebra are derived. In particular, it follows that the algebra is a semiprimitive domain. Problems concerning the groups and algebras defined by arbitrary subgroups HH of \Symn\Sym_{n} are proposed.

Keywords

Cite

@article{arxiv.0810.0352,
  title  = {Finitely presented algebras and groups defined by permutation relations},
  author = {F. Cedo and E. Jespers and J. Okninksi},
  journal= {arXiv preprint arXiv:0810.0352},
  year   = {2008}
}

Comments

10 pages

R2 v1 2026-06-21T11:26:34.453Z