Title

Convergence and divergence of ergodic averages

Abstract

In this paper we consider almost everywhere convergence and divergence properties of various ergodic averages. A general method is given which can be used to construct averages for which a.e. convergence fails, and to show divergence (and in some cases�strong sweeping out’) for large classes of ergodic averages. We also show that there are sequences with the gaps between successive terms converging to zero, but such that the Cesaro averages obtained by sampling a flow along these sequences of times converge a.e. for all fL1(X). © 1994, Cambridge University Press. All rights reserved.

Publication Title

Ergodic Theory and Dynamical Systems

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