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Algebraic Structure of Diffeomorphism Groups of One-Manifolds

Group Theory 2019-04-19 v1 Dynamical Systems Geometric Topology

Abstract

It is a celebrated result of Mather that the group of CkC^k--diffeomorphisms of an nn--manifold is simple, provided that a mild isotopy condition is satisfied, with the possible exception of k=n+1k=n+1. The purpose of this article is mostly expository, and in it we give a detailed account of Mather's proof in the case when n=1n=1.

Keywords

Cite

@article{arxiv.1904.08793,
  title  = {Algebraic Structure of Diffeomorphism Groups of One-Manifolds},
  author = {Jaewon Chang and Sang-hyun Kim and Thomas Koberda},
  journal= {arXiv preprint arXiv:1904.08793},
  year   = {2019}
}

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48 pages