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arXiv · 1701.08949

On Supernilpotent Algebras

Alexander Wires
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Abstract

We establish a characterization of supernilpotent Mal'cev algebras which generalizes the affine structure of abelian Mal'cev algebras and the recent characterization of 3-supernilpotent Mal'cev algebras. We then show that for varieties in which the two-generated free algebra is finite: (1) neutrality of the higher commutators is equivalent to congruence meet-semidistributivity, and (2) the class of varieties which interpret a Mal'cev term in every supernilpotent algebra is equivalent to the existence of a weak difference term. We then establish properties of the higher commutator in the aforementioned second class of varieties.

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Alexander Wires. 2017-01-31. On Supernilpotent Algebras. https://arxiv.org/abs/1701.08949

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