Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Geometry and Topology Seminar: Many polytopal realizations of generalized associahedra

Presented by Carsten Lange, Durham University

13 March 2014 13:00 in CM221

Associahedra were defined independently by Tamari and Stasheff more than 50 years ago and have been rediscovered and studied in many different contexts since then. Fomin and Zelevinsky observed their relation to finite cluster algebras of type A and obtained generalized associahedra by extending their description to cluster algebras of other finite types. I will present a unified construction that yields many polytopal realizations of these objects and uses geometry and combinatorics of finite Coxeter groups.

Contact mark.a.powell@durham.ac.uk or andrew.lobb@durham.ac.uk or wilhelm.klingenberg@durham.ac.uk for more information