Humboldt-Universität zu Berlin - Mathematisch-Naturwissenschaftliche Fakultät - Institut für Mathematik

Institutskolloquium am 28.04.2026

Daniel Huybrechts (Universität Bonn)

Titel: Brauer groups: From number theory to (hyperkähler) geometry

Abstract: The Brauer group of a field was introduced a century ago, but it still holds many secrets. It started out as an object in number theory, with the theorem of Brauer—Hasse—Noether as a first highlight, and was later generalised by Grothendieck to a geometric setting. ln this talk, I will sketch certain aspects of the history that are relevant to recent developments in geometry and Hodge theory with a special emphasis on hyperkähler geometry. 

Raum 1.013