3 papers
math.GN2026
Linear orders on chainable continua
Witold Marciszewski, Julia ÅcisÅowska, Benjamin Vejnar
We define and study certain linear orders on chainable continua. Those orders depend on a sequence of chains obtained from definition of chainability and on a fixed non-principal u…
math.FA2026
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…
math.GN2025
On SierpiÅski sets, Hurewicz spaces and Hilgers functions
Witold Marciszewski, Roman Pol, Piotr Zakrzewski
The Hurewicz property is a classical generalization of -compactness and SierpiÅski sets (whose existence follows from CH) are standard examples of non--compact Hurewicz sp…