arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.11606math.GN
收藏

k-有界清醒的不存在性

Nonexistence of k-bounded sobrification

Jing Lu, Kaiyun Wang, Guohua Wu, Bin Zhao

摘要:

本文主要研究k-有界sobrification空间,证明了不允许任何k-有界sobrification的T_0空间X的存在性。这加强了Zhao,Lu和Wang的结果,他们证明了标准k-有界sobrification不存在。我们的工作给出了Zhao和Ho的一个问题的完整解,并证明了与Sob和BSob不同,所有k-有界sober空间的范畴KBSob不是所有T_0空间的范畴Top_0的反射子范畴.进一步,我们引入了qk-有界sober空间的概念,证明了范畴KBSob是所有qk-有界sober空间和保既有不可约上确界的连续映射的范畴QKBSob的全反射子范畴.

英文摘要:

In this paper, we will focus on k-bounded sober spaces and show the existence of a T_0 space X not admitting any k-bounded sobrification. This strengthens a result of Zhao, Lu and Wang, who proved that the canonical k-bounded sobrification does not exist. Our work provides a complete solution to a question of Zhao and Ho, and shows that unlike Sob and BSob,the category KBSob of all k-bounded sober spaces is not a reflective subcategory of the category Top_0 of all T_0 spaces. Furthermore, we introduce the notion of qk-bounded sober spaces and prove that the category KBSob is a full reflective subcategory of the category QKBSob of all qk-bounded sober spaces and continuous mappings preserving existing irreducible suprema.

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。

↑