Michael Stoll
Michael Dettweiler
Mathematisches Institut
Universität Bayreuth
95440 Bayreuth, Germany
| Tuesday, 16:15-18:00 | in S23 (Geo) | |||
| 8. 11. 2011 | Stephan Elsenhans: | Explicit computation of Galois groups | ||
| 15. 11. 2011 | Benjamin Collas (Jussieu): | The Grothendieck-Teichmüller action on stack inertia of moduli spaces of curves is cyclotomic for genus zero and one | ||
| Abstract: | ||||
| In the context of the absolute Galois group action on the fundamental
group of moduli spaces of curves, the goal of the
Grothendieck-Teichmüller theory is to give explicit and combinatorial
results for this action. One of its key results is to state that the
Galois action is given by cyclotomy on divisorial inertia at infinity.
In this talk, we will explain how this theory, combined with mapping class groups representation by braids and Serre's cohomology theory, leads to an analogous result in the case of profinite stack inertia in genus zero and one. |
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| 22. 11. 2011 | Michael Dettweiler: | Tensorprodukte von Variationen von Hodge-Strukturen | ||
| 29. 11. 2011 | No Seminar | |||
| 6. 12. 2011 | Tzanko Matev: | 1-motives and densities | ||
| 13. 12. 2011 | No Seminar | |||
| 20. 12. 2011 | Michael Stoll: | Explicit Kummer varieties for hyperelliptic curves of genus 3 | ||
| 10. 1. 2012 | Stefan Reiter: | Calabi-Yau operators | ||
| 17. 1. 2012 | No Seminar (Prof. Stoll away) | |||
| 24. 1. 2012 | Tim Kirschner: | Die Fujiki-Relation für symplektische komplexe Räume | ||
| 31. 1. 2012 | No Seminar | |||
| 7. 2. 2012 | Zhiyi Tang: | Universal families of extensions in certain fibered categories |