Energy of harmonic functions and Gromov's proof of Stallings' theorem
classification
🧮 math.GR
math.DGmath.GT
keywords
functionsharmonictheoremgromovproofstallingscertaincompactness
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We provide the details for Gromov's proof of Stallings' theorem on groups with infinitely many ends using harmonic functions. The main technical result of the paper is a compactness theorem for a certain family of harmonic functions.
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