期刊信息
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- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Some Properties of Closure Operator and Inner Operator
摘要/Abstract
摘要:
研究了内部算子与闭包算子的一系列性质,得到如下结果:1)解决了有限完备链上内部算子和闭包算子的个数问题;2)证明了偏序集上的内部算子和闭包算子的图像是阶梯状的;3)建立了内部算子之集和闭包算子之集与某集合的幂集之间的序同构;4)找到了一个映射成为内部算子或闭包算子的等价刻画。
Abstract:
Some properties of the inner operator and closure operator are studied.The number of the inner operator and closure operator on a finite chain is solved.Then it sets up two order isomorphisms and finds an equivalent condition of a map to be an inner operator or a closour operator.
关键词
Key words:
inner operator
;
closure operator
;
Boole algebra
;
order isomorphism