...
首页> 外文期刊>Topology and its applications >On cardinal invariants and metrizability of topological inverse semigroups
【24h】

On cardinal invariants and metrizability of topological inverse semigroups

机译:拓扑逆半群的基数不变性和可度量性

获取原文
获取原文并翻译 | 示例
           

摘要

Let S be a topological inverse semigroup, E = {x ∈S: xx = x} be the maximal semilattice in S, and C = {x∈S: xe = ex for every idempotent e ∈E} be the maximal Clifford semigroup of S. It is proven that a Lindeloef locally compact semigroup S is metrizable if and only if the maximal Clifford semigroup C is metrizable. We derive from this that a compact topological inverse semigroup S is metrizable, provided the maximal semilattice E and all maximal groups of 5 are metrizable and one of the following conditions is satisfied: (1) (MA+-CH) holds; (2) E is a G_δ-set in the maximal Clifford semigroup C of S; (3) E is a Lawson semilattice; (4) all maximal groups of C are Lie groups; (5) S is dyadic or scadic compact; (6) 5 is a fragmentable (or Rosenthal) monolithic compactum; (7) S is a Corson (or Rosenthal) compactum with countable spread.
机译:令S为拓扑逆半群,E = {x∈S:xx = x}为S中的最大半格,而C = {x∈S:xe = ex对于每个等幂e∈E}为最大Clifford半群S。证明并且仅当最大Clifford半群C是可量化的时,Lindeloef局部紧致半群S才是可量化的。由此推论,只要最大半格E和所有5的最大组都是可量化的,并且满足以下条件之一,则紧致拓扑逆半群S是可度量的:(1)(MA + -CH)成立; (2)E是S的最大Clifford半群C中的G_δ集; (3)E是Lawson半格; (4)C的所有最大群都是李群; (5)S为二元或院级致密体; (6)5是可破碎的(或罗森塔尔)整体式致密粉; (7)S是具有可数展布的Corson(或Rosenthal)紧致粉。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号