A survey on topological properties of P(K) spaces

G Plebanek - Japanese Journal of Mathematics, 2024 - Springer
Given a compact space K, we denote by P (K) the space of all Radon probability measures
on K, equipped with the weak* topology inherited from C (K)*. For nonmetrizable compacta …

Countable tightness in the spaces of regular probability measures

G Plebanek, D Sobota - arXiv preprint arXiv:1405.2527, 2014 - arxiv.org
We prove that if $ K $ is a compact space and the space $ P (K\times K) $ of regular
probability measures on $ K\times K $ has countable tightness in its $ weak^* $ topology …

Countably tight dual ball with a nonseparable measure

P Koszmider, Z Silber - Journal of the London Mathematical …, 2024 - Wiley Online Library
We construct a compact Hausdorff space KK such that the space P (K) P(K) of Radon
probability measures on KK considered with the weak∗ weak^* topology (induced from the …

[HTML][HTML] Linear versus lattice embeddings between Banach lattices

A Avilés, G Martínez-Cervantes, AR Zoca… - Advances in …, 2022 - Elsevier
A well-known classical result states that c 0 is linearly embeddable in a Banach lattice if and
only if it is lattice embeddable. Improving results of HP Lotz, HP Rosenthal and N …

[HTML][HTML] Twisted sums of c0 and C (K)-spaces: a solution to the CCKY problem

A Avilés, W Marciszewski, G Plebanek - Advances in Mathematics, 2020 - Elsevier
We consider the class of Banach spaces Y for which c 0 admits a nontrivial twisted sum with
Y. We present a characterization of such spaces Y in terms of properties of the weak⁎ …

The interplay between compact spaces and the Banach spaces of their continuous functions

P Koszmider - Open problems in topology II, 2007 - Elsevier
Publisher Summary This chapter discusses about compact spaces and the Banach spaces
of their continuous functions. Various compact (always Hausdorff and infinite) spaces K and …

A dichotomy for the convex spaces of probability measures

M Krupski, G Plebanek - Topology and its Applications, 2011 - Elsevier
We show that every nonempty compact and convex space M of probability Radon measures
either contains a measure which has 'small'local character in M or else M contains a …

Some topological invariants and biorthogonal systems in Banach spaces

P Koszmider - arXiv preprint arXiv:1209.4332, 2012 - arxiv.org
We consider topological invariants on compact spaces related to the sizes of discrete
subspaces (spread), densities of subspaces, Lindelof degree of subspaces, irredundant …

Precalibre pairs of measure algebras

M Džamonja, G Plebanek - Topology and its Applications, 2004 - Elsevier
We consider Radon measures μ and pairs (κ, λ) of cardinals such that among every κ many
positive measure sets there are λ many whose intersection is nonempty. Such families are …

On the c_0-extension property

C Correa - arXiv preprint arXiv:1912.08564, 2019 - arxiv.org
In this work we investigate the c_0-extension property. This property generalizes Sobczyk's
theorem in the context of nonseparable Banach spaces. We prove that a sufficient condition …