θ-复形的S(n)-闭性质及S(n)-θ-闭性质

摘要

Dikranjan and Giuli introduced the notion of S(n)-θ-closed spares which are cteracterized by means of special covers and filter,and raised six open problems.According to their problems.the concept of θ-complex is Instroduced,and the S(n)-closed and S(n)-θ-closed Properties of θ-complex ape presented.%Dikranjan与Giuli引入了S(n)-θ-闭空间,用滤子和覆盖的语言进行刻画,并在文后提出了六个公开问题;为了讨论他们提出的问题,引八了θ-复形的概念,得到了θ-复形的S(n)-闭性质及S(n)-θ-闭性质.