## Institut Mittag-Leffler workshop on Branching Problems for Reductive Groups

### 2016 06 01 - *math algebraic-groups finite-groups *

In May 2016, I attended a week-long workshop on *Branching Problems
for Reductive
Groups*
at the Institut Mittag-Leffler (Djursholm, Sweden).

I gave a lecture on *An overview of representations of reductive
algebraic groups*; essentially everything I discussed can be found in
the text of Jens Jantzen on the representation theory of algebraic
groups. I tried to focus on things that seemed relevant to the
difficulties presented by modular representation theory to “branching
problems”: (Hochschild) cohomology, the description of simple
representations for reductive groups, reduction mod \(p\) and the
Jantzen filtration of Weyl modules.

Here are the slides from my talk.