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arXiv 2012.07948math.GR
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Harmonic Functions on Compactly Generated Groups

Darren Creutz

英文摘要:

A compactly generated group is noncompact if and only if it admits a nonconstant harmonic function (for some, equivalently for every, reasonable measure). This generalizes the known fact that a finitely generated group is infinite if and only if it admits a nonconstant harmonic function (for some, equivalently every, reasonable measure).

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