Subevent of Set-Theoretic Topology - Sat. AM
‟On discrete and disjoint shrinking properties” by Vladimir Tkachuk <vvtmdf@gmail.com>, Universidad Autonoma Metropolitana
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.