摘要
文[1]研究了半群中的理想,首次提出了粗半群和粗理想的概念.本文继续研究了群中的粗糙子群和粗正规子群.同时,在环中引入了粗子环的概念.最后,研究了粗糙集的同态问题.
Rough ideals in a semigroup has been studied and first been introduced the concepts of Rough subsemigroups and Rough ideals in \.In the paper,Rough subgroups and Rough normal subgroups in a Group are further considered. At the same time,the concepts of Rough subrings and Rough ideals in a ring are given;Finally,the homomorphism issues on Rough sets are discussed.
出处
《纯粹数学与应用数学》
CSCD
2004年第1期92-96,共5页
Pure and Applied Mathematics
关键词
粗理想
粗糙子群
粗正规子群
粗糙子环
同态
Rough ideals,Rough subgroups,Rough normal subgroups, Rough subrings,Homomorphisms
