Quasi-homomorphisms and stable lengths in mapping class groups

Kotschick, D.

doi:10.1090/S0002-9939-04-07508-2

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
DOI: https://doi.org/10.1090/S0002-9939-04-07508-2
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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