| Orateur(s) | Julian Lawrence Demeio - Orsay,
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| Titre | The étale Brauer-Manin obstruction to strong approximation on homogeneous spaces |
| Date | 18/12/2020 |
| Horaire | 16:00 à 17:00 |
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| Diffusion | https://bigbluebutton.imj-prg.fr/b/cyr-94x-zup |
| Résume | It is known that, under a necessary non-compactness assumption, the Brauer-Manin obstruction is the only one to strong approximation on homogeneous spaces X under a linear group G (or under a connected algebraic group, under assumption of finiteness of a suitable Tate-Shafarevich group), provided that the geometric stabilizers of $X$ are connected. We prove, under similar assumptions, that the étale-Brauer-Manin obstruction to strong approximation is the only one for homogeneous spaces with arbitrary stabilisers. |
| Salle | code d'accès : écrire à Cyril Demarche |
| Adresse | https://bigbluebutton.imj-prg.fr/b/cyr-94x-zup
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