Topological SemigroupsMeasure TheoryGeometric Group TheoryLie GroupEngineeringInfinite Dimensional AnalysisInvariant MeasuresTopological DynamicCompact GroupsOpen ProblemsNilpotent GroupFunctional AnalysisPoisson BoundaryPointwise Ergodic Theorems
The survey presents the main developments obtained over the last decade regarding pointwise ergodic theorems for measure preserving actions of locally compact groups. The survey includes an exposition of the solutions to a number of long standing open problems in ergodic theory, some of which are very recent and have not yet appeared elsewhere.
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George D. Birkhoff · Proceedings of the National Academy of Sciences · 1931 · 833 citations · Full text
Topics in geometric group theory
Choice Reviews Online · 2001 · 629 citations
A maximal theorem with function-theoretic applications
G. H. Hardy, J. E. Littlewood · Acta Mathematica · 1930 · 406 citations · Full text