The Boltzmann-Sinai Ergodic Hypothesis in Two Dimensions (Without Exceptional Models)

Nandor Simanyi

We consider the system of $N$ ($\ge 2$) elastically colliding hard balls of masses $m_1,...,m_N$ and radius $r$ in the flat unit torus ${\mathbb{T}}^{\nu }$, $\nu \ge 2$. In the case $\nu =2$ we prov…