Amenability of finite energy path and loop groups
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866909303459282944 |
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| author | Pestov, Vladimir G. |
| author_facet | Pestov, Vladimir G. |
| contents | It is shown that the groups of finite energy (that is, Sobolev class $H^1$) paths and loops with values in a compact Lie group are amenable in the sense of Pierre de la Harpe, that is, every continuous action of such a group on a compact space admits an invariant regular Borel probability measure. To our knowledge, the strongest previously known result concerned the amenability of groups of continuous paths and loops (Malliavin and Malliavin 1992). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_00403 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Amenability of finite energy path and loop groups Pestov, Vladimir G. Functional Analysis 22E67, 43A07 It is shown that the groups of finite energy (that is, Sobolev class $H^1$) paths and loops with values in a compact Lie group are amenable in the sense of Pierre de la Harpe, that is, every continuous action of such a group on a compact space admits an invariant regular Borel probability measure. To our knowledge, the strongest previously known result concerned the amenability of groups of continuous paths and loops (Malliavin and Malliavin 1992). |
| title | Amenability of finite energy path and loop groups |
| topic | Functional Analysis 22E67, 43A07 |
| url | https://arxiv.org/abs/2307.00403 |