Products of Positive Dehn-twists on Surfaces
Geometric Topology
2007-05-23 v1 Symplectic Geometry
Abstract
Given a 3-holed sphere decomposition of an orientable closed surface, it is shown that each orientation preserving homeomorphism of the surface is isotopic to a composition AB where A is a product of positive Dehn twists and B is a product of negative Dehn twists on the decomposition curves.
Cite
@article{arxiv.math/9905139,
title = {Products of Positive Dehn-twists on Surfaces},
author = {Feng Luo},
journal= {arXiv preprint arXiv:math/9905139},
year = {2007}
}