Short introductory talks
I'll discuss a series of conjectures on group rings, specifically about units, zero divisors, idempotents and direct finiteness, and how these relate to other open questions about L^2-invariants, K-theory and geometric group theory.
Links:
[1] https://www.mpim-bonn.mpg.de/de/taxonomy/term/39
[2] https://www.mpim-bonn.mpg.de/de/node/3444
[3] https://www.mpim-bonn.mpg.de/de/TopologySeminar