The talk will be about "Limiting Forms of the Trace Formula", a method proposed by Langlands and first carried out in a nontrivial case by Venkatesh.
Links:
[1] https://www.mpim-bonn.mpg.de/taxonomy/term/39
[2] https://www.mpim-bonn.mpg.de/node/4234
[3] https://www.mpim-bonn.mpg.de/node/12610