Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4658238 | Topology and its Applications | 2015 | 13 Pages |
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).
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
David Guerrero Sánchez,