# Events for 09/09/2020 from all calendars

## Noncommutative Geometry Seminar

**Time: ** 1:00PM - 2:00PM

**Location: ** Zoom 942810031

**Speaker: **Anna Duwenig , University of Wollongong

**Title: ***Noncommutative Poincaré Duality of the Irrational Rotation Algebra*

**Abstract: **The irrational rotation algebra is known to be self-dual in a KK-theoretic sense. The required K-homology fundamental class was constructed by Connes out of the Dolbeault operator on the 2-torus, but there has not been an explicit description of the dual element. In this talk, I will geometrically construct that K-theory class by using a pair of transverse Kronecker flows on the 2-torus.This is based on joint work with Heath Emerson (University of Victoria).

**URL: ***Event link*