Geometric aspects of functional analysis, Isr. Semin. 1986-87, Lect. Notes Math. 1317, 204-223 (1988).
[For the entire collection see Zbl 0638.00019.]
Continuing his previous investigations of the individual ergodic theorem the author states the following
Theorem 1. Let (, be a dynamical system. Denoting and its cardinality, the ergodic means
converge almost surely for .