摘要
研究幂等元集为左正则带的lpp半群,引入这类半群的恰当断面的概念,定义断面S0与左零半群的半格I的半直积I×σS0,证明了I×σS0是幂等元集为左正则带的lpp半群且具有同构于S0的恰当断面.从而推广了Saito T(1989)中关于具有逆断面的左逆半群的结构定理.
lpp semigroup whose idempotents form a left regular band is studied. The authors construct a semidireet product I×σS^0 of a left regular band I and an adequate transversal S^0 and shows that I×σS^0 is a lpp semigroup whose idempotents form a left regular band with an adequate transversal isomorphic to S^0.
出处
《曲阜师范大学学报(自然科学版)》
CAS
2005年第4期31-34,共4页
Journal of Qufu Normal University(Natural Science)
关键词
lpp半群
富足半群
恰当断面
半直积
lpp semigroups
abundant semigroups
adequate transversal
semidirect product