English

Towards Commutator theory for relations. IV

Rings and Algebras 2007-05-23 v1

Abstract

We provide more characterizations of varieties having a term Mal'cev modulo two functions FF and GG. We characterize varieties neutral in the sense of FF, that is varieties satisfying RF(R)R \subseteq F(R). We present examples of global operators satisfying the homomorphism property, in particular we show that many known commutators satisfy the homomorphism property.

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Cite

@article{arxiv.math/0612483,
  title  = {Towards Commutator theory for relations. IV},
  author = {Paolo Lipparini},
  journal= {arXiv preprint arXiv:math/0612483},
  year   = {2007}
}

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6 pages