ERC Research Period on Diophantine Geometry
timetable:
Tue 16 Oct, 10:30 - 11:10, Sala Conferenze Centro De Giorgi
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Positive cases of relative Manin-Mumford for semi-abelian surfaces (40')
speaker: Daniel Bertrand (Université Pierre et Marie Curie)abstract: At a meeting in Pisa two years ago, I described a counterexample to the relative Manin-Mumford conjecture, due to the existence of Ribet sections on certain semi-abelian schemes (and immediately turned by B. Edixhoven into a geometric statement). In the present talk, I will report on a joint work with D. Masser, A. Pillay and U. Zannier, which shows that these sections are the only obstruction to the validity of the conjecture for semi-abelian surface schemes.
timetable:
Tue 16 Oct, 10:30 - 11:10, Sala Conferenze Centro De Giorgi
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