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arXiv 2102.09908math.GNmath.GR
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关于拓扑空间的结构

On the structure of topological spaces

Nelson Martins-Ferreira

摘要:

拓扑空间的结构在这里通过纤维前序透镜进行分析。每个拓扑空间都有一个相关联的纤维前序,那些返回一个拓扑空间的纤维前序称为空间的。一类特殊的空间纤维前序由一个相互关联的家庭的前序由一个单一的岩浆索引被称为carnitine和研究在这里。由这些纤维前序得到的拓扑空间具有酉岩浆\emph{I},称为\emph{I} -carnival,并刻画了它的特征.这种刻画揭示了这种空间的一种隐藏结构。其他几个特征,并提请特别注意的情况下,配备了一个拓扑幺半群。提供了大量的示例,以及从其他数据类型(如组及其操作)获取拓扑的一般过程。度量空间和赋范空间也被考虑。

英文摘要:

The structure of topological spaces is analysed here through the lenses of fibrous preorders. Each topological space has an associated fibrous preorder and those fibrous preorders which return a topological space are called spacial. A special class of spacial fibrous preorders consisting of an interconnected family of preorders indexed by a unitary magma is called cartesian and studied here. Topological spaces that are obtained from those fibrous preorders, with a unitary magma \emph{I}, are called \emph{I}-cartesian and characterized. The characterization reveals a hidden structure of such spaces. Several other characterizations are obtained and special attention is drawn to the case of a monoid equipped with a topology. A wide range of examples is provided, as well as general procedures to obtain topologies from other data types such as groups and their actions. Metric spaces and normed spaces are considered as well.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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