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Geometry Colloquium
Seminar information archive ～04/19｜Next seminar｜Future seminars 04/20～
| Date, time & place | Friday 10:00 - 11:30 126Room #126 (Graduate School of Math. Sci. Bldg.) |
|---|
2015/11/13
10:00-11:30 Room #126 (Graduate School of Math. Sci. Bldg.)
MASAI, Hideyoshi (The University of Tokyo)
Closed random mapping tori are asymmetric
(Japanese)
MASAI, Hideyoshi (The University of Tokyo)
Closed random mapping tori are asymmetric
(Japanese)
[ Abstract ]
We consider random walks on the mapping class group of closed surfaces and mapping tori of such random mapping classes. It has been shown that such random mapping tori admit hyperbolic structure, and hence their symmetry groups are finite groups. In this talk we prove that the symmetry group of random mapping tori are trivial.
We consider random walks on the mapping class group of closed surfaces and mapping tori of such random mapping classes. It has been shown that such random mapping tori admit hyperbolic structure, and hence their symmetry groups are finite groups. In this talk we prove that the symmetry group of random mapping tori are trivial.
