摘要
利用半群S上的等价关系,给出了半群是左零带的拟膨胀及半群是左群的拟膨胀的充要条件,同时讨论了左零带及左群的膨胀。
A necessary and sufficient condition for both a semigroup S to be a quasi-inflation of a left group and a left zero band is gived. The inflation of a left zero band and a left group are investigated.
出处
《宁夏大学学报(自然科学版)》
CAS
2002年第4期303-304,314,共3页
Journal of Ningxia University(Natural Science Edition)