## Abstract After summarizing some results on the group of diffeomorphisms of the circle Diff(S^1^), we consider the group of diffeomorphisms of the two dimensional torus Diff(S^1^ Γ S^1^). We give an expression for the bracket of vector fields on this group. With the trigonometric functions sin an
β¦ LIBER β¦
On the geometry and trigonometry of homogeneous 3-manifolds with 4-dimensional isometry group
β Scribed by Sven Engel
- Publisher
- Springer-Verlag
- Year
- 2006
- Tongue
- French
- Weight
- 277 KB
- Volume
- 254
- Category
- Article
- ISSN
- 0025-5874
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