English

Clones with finitely many relative R-classes

Rings and Algebras 2016-11-22 v3

Abstract

For each clone C on a set A there is an associated equivalence relation analogous to Green's R-relation, which relates two operations on A iff each one is a substitution instance of the other using operations from C. We study the clones for which there are only finitely many relative R-classes.

Cite

@article{arxiv.0905.1611,
  title  = {Clones with finitely many relative R-classes},
  author = {Erkko Lehtonen and Ágnes Szendrei},
  journal= {arXiv preprint arXiv:0905.1611},
  year   = {2016}
}

Comments

41 pages; proofs improved, examples added

R2 v1 2026-06-21T13:00:34.340Z