activity
20022020
most citedErgodic directions for billiards in a strip with periodically located obstacles

13 citations · 37 across the 14 of their papers we have counts for

collaborators

18 papers

math.DS2020

Non-uniform ergodic properties of Hamiltonian flows with impacts

Krzysztof Frączek, Vered Rom-Kedar

The ergodic properties of two uncoupled oscillators, a horizontal and vertical one, residing in a class of non rectangular star-shaped polygons with only vertical and horizontal bo…

math.DS2020★ 4 cited

Prime number theorem for regular Toeplitz subshifts

Krzysztof Frączek, Adam Kanigowski, Mariusz Lemańczyk

We prove that neither a prime nor {an l-almost prime} number theorem hold in the class of regular Toeplitz subshifts. But, {when a quantitative strengthening of the regularity with…

math.DS2019★ 9 cited

Singularity of the spectrum for smooth area-preserving flows in genus two and translation surfaces well approximated by cylinders

Jon Chaika, Krzysztof Frączek, Adam Kanigowski +1

We consider smooth flows preserving a smooth invariant measure, or, equivalently, locally Hamiltonian flows on compact orientable surfaces and show that, when the genus of the surf…

math.DS2017★ 3 cited

On ergodicity of foliations on -covers of half-translation surfaces and some applications to periodic systems of Eaton lenses

Krzysztof Frączek, Martin Schmoll

We consider the geodesic flow defined by periodic Eaton lens patterns in the plane and discover ergodic ones among those. The ergodicity result on Eaton lenses is derived from a re…

math.DS2017

On typicality of translation flows which are disjoint with their inverse

Przemyslaw Berk, Krzysztof Fraczek, Thierry de la Rue

In this paper we prove that translation structures for which the corresponding vertical translation flows is weakly mixing and disjoint with its inverse, form a -dense set in…

math.DS2015

Recurrence and non-ergodicity in generalized wind-tree models

Krzysztof Frączek, Pascal Hubert

In this paper, we consider generalized wind-tree models and -covers over compact translation surfaces. Under suitable hypothesis, we prove recurrence of the linear flow in a…