Israel Journal of Mathematics · 1979 · 246 citations · 3 references
Mean Ergodic TheoremNonlinear ContractionsFunctional AnalysisSimple Proof
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A contribution to the theory of divergent sequences
G. G. Lorentz · Acta Mathematica · 1948 · 768 citations · Full text
Common fixed points for commuting contraction mappings
Ralph DeMarr · Pacific Journal of Mathematics · 1963 · 244 citations · Full text