English

The Euler class of planar groups

Dynamical Systems 2009-10-16 v1 Group Theory Geometric Topology

Abstract

This is an exposition of the homological classification of actions of surface groups on the plane, in every degree of smoothness.

Keywords

Cite

@article{arxiv.0810.1942,
  title  = {The Euler class of planar groups},
  author = {Danny Calegari},
  journal= {arXiv preprint arXiv:0810.1942},
  year   = {2009}
}

Comments

9 pages, 2 figures

R2 v1 2026-06-21T11:29:35.626Z