Teaching Algebra II – groups (english)This course deals with group theory, with particular emphasis on group actions and notions of category theory.Representation Theory II – Lie groups and algebras (english)This is a standard course on Lie groups, Lie algebras and their representations.Quivers and quantum algebras (english)We will survey state of the art research on quantum algebras that arise from quivers. Our guiding examples will be quantum loop groups associated to symmetric Cartan matrices, but we will also seek to understand the general theory, where many open results remain.