Talks in mathematical physics @ ETH Zürich

Title
Swiss-Cheese Operad and Drinfeld Center.
Event
Talks in mathematical physics.
Location
ETH Zürich.
On
On .
Event page
 Event page.
Slides
 Slides.

Abstract

Voronov’s “Swiss-Cheese” operad governs the action of a little disks algebra on a little intervals algebra. In this talk, I will explain how to obtain models of the fundamental groupoid of the Swiss-Cheese operad: a first model using bicolored braids and whose algebras can be described using Drinfeld centers, and a second (rational) model that involves a Drinfeld associator. We will compare this model to the model deduced from the homology of the Swiss-Cheese operad, the difference being explained by the non-formality of SC.