1) rough S-subact
粗糙S-子系
1.
lower) approximation operators on S-acts and the concept of rough S-subact with a congruence on an S-act A are introduced.
引入S-系的上、下近似算子,定义了粗糙S-子系的概念,讨论了S-系的子集在上下近似算子作用下的性质,并讨论了S-系直积的上、下近似集的性质。
2) Rough S-act
粗糙S-系
3) S-rough graph
S-粗糙图
1.
This thesis aims to improve computation ability of rough set and S-rough set and constructs rough graph and S-rough graph by combining classical g.
本文以提高粗糙集、S-粗糙集的计算能力为出发点,分别将粗糙集、S-粗糙集与传统图论相结合构造了粗糙图和S-粗糙图,并进一步给出了它们的理论及应用研究。
4) roughness factor
粗糙度系数，粗糙度因子
5) rough hyper S-set
粗糙超S-集
1.
In this paper we give the definition of rough hyper action and rough hyper S-set We also extend the hyper action and hyper S-set by analyzing the fuzzy hyper action and fuzzy hyper S-set respectively.
给出了粗糙超作用和粗糙超S-集的定义,将超作用和超S-集作了一个推广。
6) rough subgroups
粗糙子群
1.
The concepts of rough subgroups and rough normal subgroups was raised first by Kuroki N, but only a few studies on homomorphism issues were made.
KurokiN首次提出了粗糙子群、半群中的粗理想等概念 ,但对有关同态问题研究不多 。
2.
In the paper,Rough subgroups and Rough normal subgroups in a Group are further considered.
本文继续研究了群中的粗糙子群和粗正规子群。
补充资料：银河系子系
银河系的同类次系的总和（见银河系次系）。各个扁平次系构成一个扁平子系，各个中介次系构成一个中介子系，各个球状次系构成一个球状子系。这样，银河系就是由三个子系套迭而成的。子系以及次系，都是同星族相平行的概念。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条