Ruprecht-Karls-Universität Heidelberg
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„Non-abelian Chabauty for the thrice-punctured line and the Selmer section conjecture“
Dr. Martin Lüdtke, Reichsuniversität Groningen

For a smooth projective hyperbolic curve over a number field K the set of rational points X(K) is finite by Faltings' Theorem. Grothendieck's section conjecture predicts that this set can be described via Galois sections of the étale fundamental group of X. On the other hand, the non-abelian Chabauty method produces p-adic analytic functions which conjecturally cut out X(K) as a subset of X(Qp). We relate the two conjectures and discuss the example of the thrice-punctured line, where non-abelian Chabauty is used to prove a local-to-glocal principle for the section conjecture.

Freitag, den 4. November 2022 um 13:30 Uhr, in INF 205, SR A Freitag, den 4. November 2022 at 13:30, in INF 205, SR A

Der Vortrag folgt der Einladung von The lecture takes place at invitation by Dr. Marius Leonhardt