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Geometry Colloquium
Seminar information archive ～04/25｜Next seminar｜Future seminars 04/26～
| Date, time & place | Friday 10:00 - 11:30 126Room #126 (Graduate School of Math. Sci. Bldg.) |
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2014/05/22
10:00-11:30 Room #122 (Graduate School of Math. Sci. Bldg.)
Boris Hasselblatt (Tufts Univ)
Godbillon-Vey invariants for maximal isotropic foliations (ENGLISH)
Boris Hasselblatt (Tufts Univ)
Godbillon-Vey invariants for maximal isotropic foliations (ENGLISH)
[ Abstract ]
The combination of a contact structure and an orientable maximal isotropic foliation gives rise to m+1 Godbillon-Vey invariants for an m+1-dimensional maximal isotropic foliation that are of interest with respect to geometric rigidity: by studying these jointly, we give new proofs of famous "rigidity'' results from the 1980s that require only a very few simple lines of reasoning rather than the elaborate original proofs.
The combination of a contact structure and an orientable maximal isotropic foliation gives rise to m+1 Godbillon-Vey invariants for an m+1-dimensional maximal isotropic foliation that are of interest with respect to geometric rigidity: by studying these jointly, we give new proofs of famous "rigidity'' results from the 1980s that require only a very few simple lines of reasoning rather than the elaborate original proofs.
