关于拓扑粗糙群闭包的注记  

A Note on the Closure of a Topological Rough Group

作　　者：林雪 何春丽 蔡长勇 LIN Xue;HE Chun-li;CAI Zhang-yong(School of Mathematics and Statistics,Nanning Normal University,Nanning 530100,China)

机构地区：[1]南宁师范大学数学与统计学院,广西南宁530100

出　　处：《南宁师范大学学报（自然科学版）》2022年第3期16-19,共4页Journal of Nanning Normal University：Natural Science Edition

基　　金：Supported by National Natural Science Foundation of China(11861018,11961004)。

摘　　要：该文用一个例子澄清了关于拓扑粗糙群中某些闭包的一些关系,然后证明了,对拓扑粗糙群G及其子群H,若H在G中的闭包包含于G,则该闭包是G的子群.In this paper we use an example to clarify some relationships about certain closures in topological rough groups,then show that,for a topological rough group G and a subgroup H of G,if the closure of H in G is contained in G,then it is a subgroup of G.

关 键 词：拓扑粗糙群 粗糙子群 闭包 

分 类 号：O189[理学—数学]