From Galois theory to Lie algebras

08.10.2024 13:15 - 14:45

Simone Blumer (U Vienna)

An important goal of modern Galois theory is to characterize which profinite groups can arise as absolute Galois groups of fields. Following the 2011 proof of the Bloch-Kato conjecture, which established the quadratic nature of the \(\mathbb{F}_p\)-cohomology of certain maximal pro-\(p\) Galois groups, several related conjectures have emerged, aimed at refining our understanding of these cohomology rings.

A key tool in this context is the linearization process, which associates a restricted Lie algebra to any pro-\(p\) group. The cohomology of such a Lie algebra is intimately connected to the cohomology of the group itself. In this talk, we will explore the Lie algebraic formulations of several Galois-theoretic conjectures, presenting evidence that either supports or challenges their validity.

 

 

Organiser:

H. Grobner, A. Minguez-Espallargas, A. Mellit

Location:

BZ 9, 9. OG, OMP1