Open Access
2009 Covers and the curve complex
Kasra Rafi, Saul Schleimer
Geom. Topol. 13(4): 2141-2162 (2009). DOI: 10.2140/gt.2009.13.2141

Abstract

We provide the first nontrivial examples of quasi-isometric embeddings between curve complexes; these are induced by orbifold covers. This leads to new quasi-isometric embeddings between mapping class groups. As a corollary, in the mapping class group normalizers of finite subgroups are undistorted.

Citation

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Kasra Rafi. Saul Schleimer. "Covers and the curve complex." Geom. Topol. 13 (4) 2141 - 2162, 2009. https://doi.org/10.2140/gt.2009.13.2141

Information

Received: 27 July 2008; Revised: 17 April 2009; Accepted: 19 January 2009; Published: 2009
First available in Project Euclid: 20 December 2017

zbMATH: 1166.57013
MathSciNet: MR2507116
Digital Object Identifier: 10.2140/gt.2009.13.2141

Subjects:
Primary: 57M99
Secondary: 30F99

Keywords: complex of curves , cover , mapping class group , undistorted subgroup

Rights: Copyright © 2009 Mathematical Sciences Publishers

Vol.13 • No. 4 • 2009
MSP
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