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Quasi-homomorphisms and stable lengths in mapping class groups

Author: D. Kotschick
Journal: Proc. Amer. Math. Soc. 132 (2004), 3167-3175
MSC (2000): Primary 20F69; Secondary 20F12, 57M07
Published electronically: May 12, 2004
MathSciNet review: 2073290
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Abstract: We give elementary applications of quasi-homomorphisms to growth problems in groups. A particular case concerns the number of torsion elements required to factor a given element in the mapping class group of a surface.

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Additional Information

D. Kotschick
Affiliation: Mathematisches Institut, Ludwig-Maximilians-Universität München, Theresienstr. 39, 80333 München, Germany

Received by editor(s): July 28, 2003
Published electronically: May 12, 2004
Additional Notes: The author is a member of the \sl European Differential Geometry Endeavour (EDGE), Research Training Network HPRN-CT-2000-00101, supported by The European Human Potential Programme
Communicated by: Ronald A. Fintushel
Article copyright: © Copyright 2004 American Mathematical Society

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