rough subsemirings粗糙子半环
1.In this paper,the notion of a rough subsemiring is introduced;using the upper and lower approximations about a congruence on a subsets,the notion of the rough subsemirings on the semirings is given;and it is proved that the subsemirings and ideal of the semiribgs are the rough subseming and rough ideal of the semirings.在半环上引入粗糙集并研究了粗糙子半环;利用半环的非空子集上关于同余关系的上、下近似,给出了半环的粗糙子半环的定义,证明了半环的子半环、理想一定是半环的粗糙子半环、粗糙理想。
2.The paper suggests the properties of rough subsemirings and rough ideal.研究了半环的粗糙子半环和粗糙理想的性质;利用半环的非空子集上关于同余关系的上、下近似,给出了半环的粗糙子半环的定义,证明了半环的子半环、理想一定是半环的粗糙子半环、粗糙理想。
3)fuzzy semi-subring模糊子半环
1.Using the concept of fuzzy spaces,we redefine semi-ring and fuzzy semi-subring and give theorems of them.在模糊空间定义的基础上重新定义了模糊半环,模糊子半环并对其基本性质进行了研 究,这是传统模糊半环理论的推广和延伸。
4)subdirect product of semirings半环的子直积
5)the star semirings of no star factor无星因子-幺半环
6)Rough-fuzzy subsemirings粗模糊子半环
延伸阅读
3-甲基丁基硅倍半环氧乙烷CAS：67763-00-2中文名称：3-甲基丁基硅倍半环氧乙烷英文名称：Silsesquioxanes, 3-methylbutyl
