Chaotic Boltzmann's Billiard Systems at positive energy

Irene De Blasi, Airi Takeuchi, Susanna Terracini

This paper deals with the so-called Boltzmann billiard, that is, a billiard subjected to a central force of the type $V(r)=-\alpha /r-\beta /r^2$, $\alpha$ and $\beta$ being positive constants, and wi…