Enumeration of Bi-commutative AG-groupoids
arXiv:1403.5393
Abstract
A groupoid satisfying the left invertive law: is called an AG-groupoid and is a generalization of commutative semigroups. We consider the concept of bi-commutativity in AG-groupoids and thus introduce left commutative AG-groupoids, right commutative AG-groupoids and bi-commutative AG-groupoids.
Though the old version had good results but had some serious mistakes in Theorem 1 and some misprints. So it is revised