Article ID Journal Published Year Pages File Type
4658238 Topology and its Applications 2015 13 Pages PDF
Abstract

In this note we continue to study the cardinal invariants dm and sdm introduced by the author in [7]. We prove that if K   is a compact subspace of Cp(Y)Cp(Y) for some space Y   such that dm(Y)≤κdm(Y)≤κ then K is strongly κ-monolithic. Also we show how GCH   implies that if sdm(Cp(X))≤ωsdm(Cp(X))≤ω for some hereditarily normal space X   of character at most cc then every infinite compact subset of X is countable. Finally we show that for every cardinal κ there is a metric space of weight at most κ   that condenses onto Σ(2κ)Σ(2κ).

Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology
Authors
,