The system of falling balls is a hyperbolic system with singularities,
which was introduced by Wojtkowski in 1990. The main, long standing
conjecture is whether that sytem is ergodic or not. Sinai and Chernov
developed, in 1987, a powerful mechanism for hyperbolic systems with
singularities that gives ergodicity of such sytems, by checking, if the
dynamical system is 'locally' and 'globally' ergodic. We make a first step
towards the solution of this challenging task by proving that the system of
\(N\) falling balls is globally ergodic.
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