Algebra/Topology Seminar by Joseph Ayoub

Algebra/Topology Seminar by Joseph Ayoub (Zurich)

Title: Motivic Galois groups and periods

Abstract: I'll explain the construction of a motivic Galois group $G_{mot}(k,\sigma)$
associated a field $k$ endowed with a complex embedding $\sigma$. I'll discuss some
known results and some conjectures. In particular, I'll describe the conjectural relation
to periods of algebraic varieties and the non conjectural relation to solutions of
Gauss-Manin connections.