On the existence of non-geometric sections of arithmetic fundamental groups
✍ Scribed by Saïdi, Mohamed
- Book ID
- 121594431
- Publisher
- Springer-Verlag
- Year
- 2013
- Tongue
- French
- Weight
- 211 KB
- Volume
- 277
- Category
- Article
- ISSN
- 0025-5874
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📜 SIMILAR VOLUMES
Let X , be a geometrically connected smooth and proper curve over a local or global field K . Following GROTHENDIECK [3] there is a canonical exact sequence for the (etale) fundamental group z,(X,) of X,. (Here and in the following we will omit the base points.) where I? denotes an algebraic closur
We introduce a type of generalized orbifold called an "orbifold composition". We study their topology and the extensions and deformations of the maps between them. As the main goal, we obtain the theorems which yield the geometric realizations of amalgamated free products and HNN extensions of 3-orb