1208.5212 (Krzysztof Fraczek et al.)

Ergodic directions for billiards in a strip with periodically located
obstacles    [PDF]

Krzysztof Fraczek, Corinna Ulcigrai

We study the size of the set of ergodic directions for the directional billiard flows on the infinite band $\R\times [0,h]$ with periodically placed linear barriers of length $0<\lambdaView original: http://arxiv.org/abs/1208.5212