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On discrete and disjoint shrinking properties

Vladimir Tkachuk ⟨vvtmdf@gmail.com⟩

Abstract:

A space $X$ has the disjoint (discrete) shrinking property if for any family ${U_n: n\in\omega}$ of non-empty open subsets of $X$ there exists a disjoint (discrete) family ${V_n:
n\in\omega}$ of non-empty open sets such that $V_n \subset U_n$ for every $n\in\omega$. We present a topological equivalent of the disjoint shrinking property in general spaces and apply it to characterize the disjoint shrinking property in topological groups and locally convex spaces.

Scheduled for: 2025-03-08 10:45 AM: Vladimir Tkachuk (virtual) in Forbes 2070C

Status: Accepted

Collection: Set-Theoretic Topology

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