摘要
给出带的双闭子带和它的性质及特征。在此基础上 。
The bi closed subbands of a band are introduced and its some properties and characterizations are given. By using these results, the free object in the variety of idempotent semirings whose additive reducts are semilattices is established.
出处
《西北大学学报(自然科学版)》
CAS
CSCD
北大核心
2002年第4期347-350,共4页
Journal of Northwest University(Natural Science Edition)
基金
Foundation of Northwest University.