摘要
证明了可以在WCL(X)(X上的弱闭包算子的全体)、WIN(X)(X上的弱内部算子的全体)、WOU(X)(X上的弱外部算子的全体)、WB(X)(X上的弱边界算子的全体)、WD(X)(X上的弱导算子的全体)、WD*(X)(X上的弱差导算子的全体)、WR(X)(X上的弱远域系算子的全体)和WN(X)(X上的弱邻域系算子的全体)上定义适当的序关系,使它们成为与(CS(X),)同构的完备格(其中CS(X)是给定集合X上的闭包系统的全体)。
For an abitrary set X, appropriate order relations on WCL(X) ( the set of all weak closure operators), WIN(X) (the set of all weak interior operators ), WOU(X) (the set of all weak exterior operators ), WB( X ) (the set of all weak boundary operators), WD(X) (the set of all weak derived operators), WD^* (X) (the set of all weak difference derived operators), WR(X) (the set of all weak remote neighborhood system operators) and WN(X) (the set of all weak neighborhood system operators) can be defined respectively, which make WCL(X), WIN(X), WOU(X), WB(X), Wi)(X), WD^* (X), WR(X) and WN(X) to be complete lattices that are ismorphic to (C.S(X), C_ ), where C_S(X) is the set of all closure systems (a generalization of pre-cotopologies) on X.
出处
《山东大学学报(理学版)》
CAS
CSCD
北大核心
2009年第6期18-21,共4页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目(10271069)
陕西师范大学研究生培养创新基金资助项目(2009CXS029)
关键词
闭包系统
弱内部算子
弱外部算子
弱边界算子
弱差导算子
弱远域系算子
closure system
weak interior operator
weak exterior operator
weak boundary operator
weak difference derived operator
weak remote neighborhood system operator