# Events for 05/20/2020 from all calendars

## Noncommutative Geometry Seminar

**Time: ** 2:00PM - 3:00PM

**Location: ** Zoom 942810031

**Speaker: **Rufus Willett, University of Hawai'i

**Title: ***Almost ideal structures and K-theory*

**Abstract: **The most basic (and powerful) tools to compute C*-algebra K-theory are probably the long-exact sequences associated to ideals. Unfortunately, many of the most interesting C*-algebras are simple, so these tools are inapplicable. I’ll discuss techniques to compute K-theory that work when one only has ‘approximate ideals’, examples coming from dynamics including simple C*-algebras, and applications to the Baum-Connes conjecture and Künneth formula.

**URL: ***Event link*