54 citations · 253 across the 34 of their papers we have counts for
3 papers · 1 filter
On two conjectures of Maurer concerning basis graphs of matroids
Jérémie Chalopin, Victor Chepoi, Damian Osajda
We characterize 2-dimensional complexes associated canonically with basis graphs of matroids as simply connected triangle-square complexes satisfying some local conditions. This pr…
Infinitely presented small cancellation groups have the Haagerup property
Goulnara Arzhantseva, Damian Osajda
We prove the Haagerup property (= Gromov's a-T-menability) for finitely generated groups defined by infinite presentations satisfying the C'(1/6)-small cancellation condition. We d…
Realisation and dismantlability
Sebastian Hensel, Damian Osajda, Piotr Przytycki
We study dismantling properties of the arc, disc and sphere graphs. We prove that any finite subgroup H of the mapping class group of a surface with punctures, the handlebody group…