Oberseminar Zahlentheorie und Arithmetische Geometrie

Wintersemester 2021/22

Freitags, 11:00-12:00 Uhr

Seminarraum G117 im Welfenschloss (Hauptgebäude, Welfengarten 1)

Ulrich Derenthal, Matthias Schütt, Ziyang Gao

Fr 15.10.2021Brian Lawrence (UCLA)

Sparsity of Integral Points on Moduli Spaces of Varieties

Interesting moduli spaces don't have many integral points.  More precisely, if X is a variety over a number field, admitting a variation of Hodge structure whose associate period map is injective, then the number of S-integral points on X of height at most H grows more slowly than H^{\epsilon}, for any positive \epsilon.  This is a sort of weak generalization of the Shafarevich conjecture; it is a consequence of a point-counting theorem of Broberg, and the largeness of the fundamental group of X. Joint with Ellenberg and Venkatesh.
Fr 22.10.2021

Fr 29.10.2021 (F303) 

Giacomo Mezzedimi (LUH)
Fr 12.11.2021
Fr 19.11.2021Damián Gvirtz (University College London)
Fr 26.11.2021
Fr 3.12.2021
Fr 10.12.2021NoGAGS (in Hannover)
Fr 17.12.2021
Fr 7.1.2022
Fr 14.1.2022
Fr 21.1.2022
Fr 28.1.2022