Perfectly supportable semigroups are \sigma-discrete in each Hausdorff shift-invariant topology
一般拓扑
2014-12-04 v1 群论
摘要
本文引入了 perfectly supportable semigroups,并证明它们在每个 Hausdorff shift-invariant topology 中都是 \sigma-discrete 的。Perfectly supportable semigroups 类包括无限集 X 上有限支撑关系半群 FRel(X) 的每个子半群 S,其中 S 包含 X 上有限支撑置换群 FSym(X)。
关键词
引用
@article{arxiv.1112.5727,
title = {Perfectly supportable semigroups are \sigma-discrete in each Hausdorff shift-invariant topology},
author = {Taras Banakh and Igor Guran},
journal= {arXiv preprint arXiv:1112.5727},
year = {2014}
}
备注
6 pages