3 papers
math.FA2026
Geometric duality, perfect graphs, and the SierpiÅski space
Piotr Borodulin-Nadzieja, Barnabás Farkas, Anna Pelczar-Barwacz
In their classical paper \emph{On the stopping time Banach space}, Bang and Odell, among a plethora of results concerning the dyadic stopping time space and its dual, presented the…
math.LO2025
More on Halfway New Cardinal Characteristics
Barnabás Farkas, Lukas Daniel Klausner, Marc Lischka
We continue investigating variants of the splitting and reaping numbers introduced in arXiv:1808.02442. In particular, answering a question raised there, we prove the consistency o…
math.FA2024
The ZOO of combinatorial Banach spaces
Piotr Borodulin-Nadzieja, Barnabás Farkas, Sebastian Jachimek +1
We study Banach spaces induced by families of finite sets in the most natural (Schreier-like) way, that is, we consider the completion $X_\mc{F}$ of with respect to the no…