[Turkmath:8676] Sabancı Üniv. Math. Colloquium (Dez. 12 Wednesday, 13:30): Mustafa Korkmaz, Stable commutator lengths in mapping class groups

[wmeidl]

Dear All,

please find below the abstract of the Sabancı University Math. 
Colloquium talk by

*Mustafa Korkmaz*, METU-Ankara
*Title: *Stable commutator lengths in mapping class groups
*Date: *Wednesday*, *12.12.2012, 13:30
*Place:* Sabancı University, FENS 2008.

All interested are welcome to attend. For directions to Sabancı 
University please visit

http://www.sabanciuniv.edu/tr/?kampus_hayati/hizmet_ve_olanaklar/ulasim.html


Stable commutator lengths in mapping class groups.

Abstract: The mapping class group is the group of self-diffeomorphisms 
of a surface
considered up to isotopy. This group plays a central role in low 
dimensional topology.
It is perfect, i.e. every element can be written as a product of 
commutators.
I will be discussing the number of such commutators for some special 
elements.



Greetings, Wilfried Meidl
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