Michael Stoll
Michael Dettweiler
Mathematisches Institut
Universität Bayreuth
95440 Bayreuth, Germany
Friday, 12:15-14:00 | in S80 | |||
13. 5. 2011 | Zhiyi Tang: | Mixed Tate motives and framings | ||
20. 5. 2011 | Tzanko Matev: | Chabauty's method | ||
27. 5. 2011 | Michael Schulte: | Galois representations and middle convolution | ||
3. 6. 2011 | No seminar | |||
10. 6. 2011 | Michael Stoll: | Rational points on some curve of genus 12 | ||
17. 6. 2011 | No seminar (Prof. Stoll away) | |||
23. 6. 2011 | No seminar (Prof. Stoll away) | |||
1. 7. 2011 | No seminar | |||
8. 7. 2011 | No seminar (Tag der Mathematik) | |||
15. 7. 2011 | Bas Edixhoven (Leiden): | Relative Manin-Mumford in the semi-abelian case | ||
Abstract: Daniel Bertrand recently found an example of a groupscheme J over a complex curve S and a section P with the following properties. The fibres of J over S are extension of an elliptic curve by the multiplicative group: J is semi-abelian, of toric rank one. The union of the n.P(S), over n in the integers, is dense in J. There exists an infinite set of s in S such that P(s) is torsion. I will present this example from the point of view of generalised jacobians. And I will show, still following Bertrand, why this counter-example to the naive version of the relative semi-abelian Manin-Mumford conjecture is actually an example of Richard Pink's common generalisation of the conjectures of Andre-Oort, Manin-Mumford, and Mordell-Lang. arXiv |
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22. 7. 2011 | Moshe Jarden: | Diamonds in torsion of abelian varieties | ||
Abstract: We consider the following conjecture: Conjecture: Let We shall explain the basic principles of the proof of the conjecture when K is finitely generated over its prime field. |
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29. 7. 2011 | TBA |