Norm convergence of nilpotent ergodic averages

Abstract

We show that multiple polynomial ergodic averages arising from nilpotent groups of measure preserving transformations of a probability space always converge in the $L^2$ norm.

Authors

Miguel N. Walsh

Departamento de Matemática - 2012, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina