Abstract:We prove that for each g at least 2, there is no universal construction combining Baker's method with finite étale covers to determine the integral points on all affine curves of genus g. This is joint work with Aaron Landesman
Abstract:The étale cohomology of varieties over Q enjoys a Galois action. For Hilbert modular varieties, Nekovář-Scholl observed that this Galois action on the level of cohomology extends to a much larger profinite group: the plectic group. Motivated by applications to higher-rank Euler systems, they conjectured that this extension holds even on the level of complexes, as well as for more gene...