Séminaire de Géométrie Tropicale

Institut Mathématiques de Jussieu ,
Université Pierre et Marie Curie, Paris 6
UMR CNRS 7586

Centre de Mathématiques Laurent Schwartz ,
École Polytechnique
UMR CNRS 7640



Vendredi 24 février, 16h salle 1525-502



Tyler Foster (IHES)

Tropical realizations of Galois actions

Résumé : I will introduce techniques that allow one to incorporate Galois actions into the machinery of tropical geometry in a natural way. Among other things, these techniques let one construct a large class of Galois representations on vector spaces tropically and to recover Galois actions on varieties using tropical geometry. I plan to focus on two special cases: (1) complex varieties over a punctured disk, and (2) real varieties.