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Operator Algebra Seminars
Seminar information archive ～04/25｜Next seminar｜Future seminars 04/26～
| Date, time & place | Wednesday 16:30 - 18:00 122Room #122 (Graduate School of Math. Sci. Bldg.) |
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2010/06/03
16:30-18:00 Room #122 (Graduate School of Math. Sci. Bldg.)
Makoto Yamashita (Univ. Tokyo)
Fixed Points in the Stone-Cech boundary of Groups (ENGLISH)
Makoto Yamashita (Univ. Tokyo)
Fixed Points in the Stone-Cech boundary of Groups (ENGLISH)
[ Abstract ]
We discuss the class of discrete groups which admit fixed points under the adjoint action on the Stone-Cech boundary. Such groups have vanishing $L^2$-Betti numbers, and nonamenable ones fail to have property (AO).
We discuss the class of discrete groups which admit fixed points under the adjoint action on the Stone-Cech boundary. Such groups have vanishing $L^2$-Betti numbers, and nonamenable ones fail to have property (AO).
