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On the complexity of diffeomorphism of surfaces

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Speaker: 
Jaroslaw Kedra
Affiliation: 
U of Aberdeen/MPIM
Date: 
Thu, 2016-01-07 16:30 - 17:30
Location: 
MPIM Lecture Hall
I will discuss the unboundedness of the autonomous norm on the area preserving diffeomorphisms of surfaces. The main argument relies on constructing a quasimorphism with the use of braid groups.
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