## EVENT DETAILS AND ABSTRACT

**Algebra Seminar**
**Title:** Planar Algebras at index 3+\sqrt{5}

**Speaker:** Dave Penneys

**Speaker Info:** University of Toronto

**Brief Description:**

**Special Note**:

**Abstract:**

A planar algebra is a mathematical object which encodes quantum
symmetries. Particularly nice planar algebras, called "factor" or
"fantastic" planar algebras, give unitary 2 categories, and generalize
the representation categories coming from (quantum) groups. We start
with an introduction to planar algebras, with specific attention to
examples, and then discuss some examples and non-examples at index
3+\sqrt{5} which have particular importance in the classification of
subfactors.

**Date:** Wednesday, April 24, 2013

**Time:** 2:00pm

**Where:** linguistics seminar room (2nd floor, 2016 sheridan)

**Contact Person:** Nir Avni

**Contact email:**

**Contact Phone:**

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