2018•arXiv (Cornell University)Open access

Ultralimits of Birkhoff averages

Maria Carvalho, Fernando Jorge Moreira

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Abstract

Given a compact metric space $X$ and a probability measure in the $σ-$algebra of Borel subsets of $X$, we will establish a dominated convergence theorem for ultralimits of sequences of integrable maps and apply it to deduce a non-standard ergodic-like theorem for any probability measure.

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Given a compact metric space $X$ and a probability measure in the $σ-$algebra of Borel subsets of $X$, we will establish a dominated convergence theorem for ultralimits of sequences of integrable maps and apply it to deduce a non-standard ergodic-like theorem for any probability measure.

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Given a compact metric space $X$ and a probability measure in the $σ-$algebra of Borel subsets of $X$, we will establish a dominated convergence theorem for ultralimits of sequences of integrable maps and apply it to deduce a non-standard ergodic-like theorem for any probability measure.

Key concepts: Mathematics, Economics

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