RELATIVE COMMUTATIVITY DEGREE OF A SUBPOLYGROUP OF A FINITE POLYGROUP
摘要
The objective of this paper is to generalize the concept of commutativity degree of a finite polygroup P, by defining the notion of relative commutativity degree of a subpolygroup S of a polygroup P. In this regard, we state some results concerning the newly defined concept. Then, we illustrate through examples that the known results for groups may not hold for polygroups. Finally, we compute the relative commutativity degree of subpolygroups of some special polygroups.