English

The mapping class group cannot be realized by homeomorphisms

Geometric Topology 2008-07-02 v1 Dynamical Systems

Abstract

Let MM be a closed surface. By \Homeo(M)\Homeo(M) we denote the group of orientation preserving homeomorphisms of MM and let \MC(M)\MC(M) denote the Mapping class group. In this paper we complete the proof of the conjecture of Thurston that says that for any closed surface MM of genus \g2\g \ge 2, there is no homomorphic section \E:\MC(M)\Homeo(M)\E:\MC(M) \to \Homeo(M) of the standard projection map \Proj:\Homeo(M)\MC(M)\Proj:\Homeo(M) \to \MC(M).

Keywords

Cite

@article{arxiv.0807.0182,
  title  = {The mapping class group cannot be realized by homeomorphisms},
  author = {Vladimir Markovic and Dragomir Saric},
  journal= {arXiv preprint arXiv:0807.0182},
  year   = {2008}
}

Comments

33 pages, 6 figures

R2 v1 2026-06-21T10:56:28.320Z