Cesaro convergence of spherical averages for measure-preserving actions of Markov semigroups and groups

Alexander Bufetov, Mikhail Khristoforov, Alexey Klimenko

Cesaro convergence of spherical averages is proven for measure-preserving actions of Markov semigroups and groups. Convergence in the mean is established for functions in $L^p$, $1…