Seminario di algebra e geometria
ore
09:00
presso Seminario II
The cohomology of an algebraic variety
comes naturally equiped with additional
structures (e.g. Hodge structures, Galois actions ...),
enconding interesting geometrical and arithmetical
informations (e.g. Torelli theorems, periods maps,
number of points over finite fields ...). The purpose of this
talk is to present non-abelian versions of this general picture.
In particular, I will explain how algebraic varieties
have homotopy types as well as moduli spaces of
non-abelian cohomology, and how both come equipped with
additional structures. Finally, if time allows, I will
present some relations between homotopy types
of algebraic varieties, moduli spaces of non-abelian cohomology
and derived moduli spaces of local systems.