Normal CR structures on compact 3-manifolds
β Scribed by Florin Alexandru Belgun
- Publisher
- Springer-Verlag
- Year
- 2001
- Tongue
- French
- Weight
- 187 KB
- Volume
- 238
- Category
- Article
- ISSN
- 0025-5874
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π SIMILAR VOLUMES
A general technique is introduced for deriving Bochner type formulae on a compact riemannian manifold, relating its curvature tensor with the intrinsic torsion of a compatible (orthogonal) G-structure. The technique is illustrated for the groups G = U n , SU n , G 2 and Spin 7 , with various applica
In the paper we define a multiplicative genus of a compact orientable manifold. We use this genus for the study of the existence of almost complex structures on manifolds. A few applications are given, namely, we prove the nonexistence of an almost complex structure on quaternionic flag manifolds an