H-star-Lindelöf property and weaker versions

IF 0.6 4区 数学 Q3 MATHEMATICS
Ricardo Cruz-Castillo , Alejandro Ramírez-Páramo , Jesús F. Tenorio
{"title":"H-star-Lindelöf property and weaker versions","authors":"Ricardo Cruz-Castillo ,&nbsp;Alejandro Ramírez-Páramo ,&nbsp;Jesús F. Tenorio","doi":"10.1016/j.topol.2024.108911","DOIUrl":null,"url":null,"abstract":"<div><p>We introduce the selection principles H-star-Lindelöf, weakly H-star-Lindelöf and almost H-star-Lindelöf and we provide some propositions and relationships with other known properties in literature. Furthermore, in this paper we characterize the above selection principles in hyperspaces endowed with the hit-and-miss topology <span><math><msub><mrow><mi>τ</mi></mrow><mrow><mi>Δ</mi></mrow></msub></math></span>, by using a new property <span><math><msubsup><mrow><mi>SS</mi></mrow><mrow><msub><mrow><mi>Π</mi></mrow><mrow><mi>Δ</mi></mrow></msub><mo>(</mo><mi>Λ</mi><mo>)</mo><mo>,</mo><mtext>fin</mtext></mrow><mrow><mo>⋆</mo></mrow></msubsup><mo>(</mo><msub><mrow><mi>C</mi></mrow><mrow><mi>Δ</mi></mrow></msub><mo>(</mo><mi>Λ</mi><mo>)</mo><mo>,</mo><mi>B</mi><mo>)</mo></math></span>, for the corresponding choose of the family <span><math><mi>B</mi></math></span>.</p></div>","PeriodicalId":51201,"journal":{"name":"Topology and its Applications","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Topology and its Applications","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0166864124000968","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0

Abstract

We introduce the selection principles H-star-Lindelöf, weakly H-star-Lindelöf and almost H-star-Lindelöf and we provide some propositions and relationships with other known properties in literature. Furthermore, in this paper we characterize the above selection principles in hyperspaces endowed with the hit-and-miss topology τΔ, by using a new property SSΠΔ(Λ),fin(CΔ(Λ),B), for the corresponding choose of the family B.

H-star-Lindelöf 性质和弱化版本
我们介绍了H-star-Lindelöf、弱H-star-Lindelöf和近H-star-Lindelöf选择原则,并提供了一些命题以及与文献中其他已知性质的关系。此外,在本文中,我们通过使用新性质 SSΠΔ(Λ),fin⋆(CΔ(Λ),B),针对族 B 的相应选择,描述了具有命中与遗漏拓扑学 τΔ 的超空间中的上述选择原则。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
1.20
自引率
33.30%
发文量
251
审稿时长
6 months
期刊介绍: Topology and its Applications is primarily concerned with publishing original research papers of moderate length. However, a limited number of carefully selected survey or expository papers are also included. The mathematical focus of the journal is that suggested by the title: Research in Topology. It is felt that it is inadvisable to attempt a definitive description of topology as understood for this journal. Certainly the subject includes the algebraic, general, geometric, and set-theoretic facets of topology as well as areas of interactions between topology and other mathematical disciplines, e.g. topological algebra, topological dynamics, functional analysis, category theory. Since the roles of various aspects of topology continue to change, the non-specific delineation of topics serves to reflect the current state of research in topology. At regular intervals, the journal publishes a section entitled Open Problems in Topology, edited by J. van Mill and G.M. Reed. This is a status report on the 1100 problems listed in the book of the same name published by North-Holland in 1990, edited by van Mill and Reed.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信