The rank of semigroup of all Orientation-Preserving Transformations in E Classes for I_E*(X)
Long Wei-fen · Shuxue de shijian yu renshi · 2014
Let E be an equivalence on a finite set X.The semigroup denote by OPPI_(E*)(X)consisting of all orientation-preserving transformations in E classes for I_(e*)(X).This paper characterizes its rank and Green's relations under certain assumptions.