The ADE affair
23/03/2018 23 março - 16:45 - 6.2.33
Peter Cameron (Univ. St Andrews-CEMAT)
Faculty of Sciences, University of Lisbon
The Coxeter--Dynkin diagrams of type ADE occur in so many different parts of mathematics, from singularity theory to mathematical physics to graph theory, that they surely play a very deep role in our subject. In the present century, they have occurred in the theory of cluster algebras by Fomin and Zelevinsky, and a constructive version of the McKay correspondence has been found by Dechant. The talk will discuss some of these connections.