A simple proof of the mean ergodic theorem for nonlinear contractions in Banach spaces

作者: Ronald E. Bruck

DOI: 10.1007/BF02764907

关键词: Discrete mathematicsBanach spaceClosed graph theoremUniform boundedness principleBounded inverse theoremBanach–Mazur theoremMathematicsPure mathematicsEberlein–Šmulian theoremOpen mapping theorem (functional analysis)Inverse function theorem

摘要: The following theorem is proven:if E a uniformly rotund Banach space with Frechet differentiable norm, C bounded nonempty closed convex subset of E, and T: C→C contraction, then the iterates {Tnx} are weakly almost-convergent to fixed-point T.

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