摘要
本文证明了,存在不是右逆半群的正则*-半群、存在不是正则*-半群的右逆半群、正则*-半群与右逆半群交集是逆半群.
In this paper we prove that exist a right unipotent semigroups it is not a a regular * - semigroup it is not a fight unipotent semigroups, and a semigroup S is inverse semigroups if and only if S is right unipotent semigroups and S is regular * - semigroup.
出处
《青海师范大学学报(自然科学版)》
2007年第1期5-7,共3页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
正则*-半群
右逆半群
逆半群
regular * -semigrop
fight unipotent Semigroup
inverse semigroups