摘要
设X为有限集,E为X上的等价关系.I X为X上的对称逆半群,令I E*(X)={f∈I X:(x,y)∈E(f(x),f(y)∈E)}.探讨I E*(X)的一类全新子半群:I E*(X)中E类保序变换半群,研究了它的Green关系.
Let the symmetric inverse semigroup be on the finite set , and be an equivalence on and define. A new family of subsemigroups has been provided in this paper, namely order - preserving in classes for transformations semigroups. This paper has discussed the Green' s equivalences and rank of order - preserving in classes for trans- formations semigroups.
出处
《嘉应学院学报》
2013年第8期15-17,共3页
Journal of Jiaying University
基金
贵州省科学技术基金(黔科合J字LkS[2011]15)
关键词
半群
保序变换
保等价关系
秩
Semigroups
preserving oder
preserving equivalence relation
rank