An amenability-like property of finite energy path and loop groups

We show that the groups of finite energy loops and paths (that is, those of Sobolev class $H^1$) with values in a compact connected Lie group, as well as their central extensions, satisfy an amenability-like property: they admit a left-invariant mean on the space of bounded functions uniformly conti...

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Bibliographic Details
Main Author: Pestov, Vladimir
Format: Article
Language:English
Published: Académie des sciences 2021-01-01
Series:Comptes Rendus. Mathématique
Online Access:https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.134/