On \(c_\Delta (\Lambda)\)-covers and \(\Delta\gamma\)-sets

DOI10.1016/j.topol.2021.107940zbMath1486.54021OpenAlexW4200044042MaRDI QIDQ2072132

Alejandro Ramírez-Páramo, Ritu Sen

Publication date: 26 January 2022

Published in: Topology and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.topol.2021.107940

zbMATH Keywords

tightnesshyperspacesselection principles\(T\)-tightnesscountable fan tightnesshit-and-miss topologiesset-tightnesscountable strong Fan tightnessFrećhet-Urysohnsequential densenessstrongly Frećhet-Urysohn

Mathematics Subject Classification ID

Hyperspaces in general topology (54B20) Noncompact covering properties (paracompact, Lindelöf, etc.) (54D20) Topological spaces and generalizations (closure spaces, etc.) (54A05) Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25)

Cites Work

• Selection principles of the Fell topology and the Vietoris topology
• Selection principles and hyperspace topologies
• Selection principles related to \(\alpha\)-properties
• Selection principles, \(\gamma \)-sets and \(\alpha _i\)-properties in Čech closure spaces
• Some covering properties of hyperspaces
• Character and tightness of hyperspaces with the Fell topology
• Tightness, character and related properties of hyperspace topologies
• Combinatorics of open covers. I: Ramsey theory
• Variations on tightness in function spaces
• Menger and Menger-type star selection principles for hit-and-miss topology
• The Rezinchenko property and the Pytkeev property in hyperspaces
• A Hausdorff Topology for the Closed Subsets of a Locally Compact Non-Hausdorff Space
• The Pytkeev property and the Reznichenko property in function spaces
• Topologies on Spaces of Subsets
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