19 citations · 125 across the 36 of their papers we have counts for
33 papers · 1 filter
Counting spaces of functions on separable compact lines
Maciej Korpalski, Piotr Koszmider, Witold Marciszewski
We investigate the following general problem, closely related to the problem of isomorphic classification of Banach spaces of continuous real-valued functions on a compact s…
Almost disjoint families and some automorphic and injective properties of
Piotr Koszmider, Małgorzata Rojek
Answering questions of A. Avilés, F. Cabello Sánchez, J. Castillo, M. González and Y. Moreno we show that the following statements are independent of the usual axioms ZFC with arbi…
On Subspaces of Indecomposable Banach Spaces
Piotr Koszmider, Zdeněk Silber
We address the following question: what is the class of Banach spaces isomorphic to subspaces of indecomposable Banach spaces? We show that this class includes all Banach spaces of…
Countably tight dual ball with a nonseparable measure
Piotr Koszmider, Zdeněk Silber
We construct a compact Hausdorff space such that the space of Radon probabiblity measures on considered with the weak topology (induced from the space of continu…
Equilateral and separated sets in some Hilbert generated Banach spaces
Piotr Koszmider, Kamil Ryduchowski
We study Hilbert generated versions of nonseparable Banach spaces considered by Shelah, Steprāns and Wark where the behavior of the norm on nonseparable subsets is so…
Almost disjoint families and the geometry of nonseparable spheres
Osvaldo Guzmán, Michael Hrušák, Piotr Koszmider
We consider uncountable almost disjoint families of subsets of , the Johnson-Lindenstrauss Banach spaces induced by them, and…