Pure Maths Colloquium: Vincent Pilaud

This talk is part of the Pure Maths Colloquium at the University of St Andrews. Check out our upcoming talks at http://theran.lt/pure-colloquium/.

Where: Lecture Theatre D
When: Nov 22 2018 @ 16.00
Speaker: Vincent Pilaud CNRS & LIX, École Polytechnique
Title: From the associahedron to quotientopes, a journey in the combinatorics of lattice quotients of the weak order

The associahedron is a polytope whose vertices correspond to binary trees with n nodes and whose edges correspond to rotations between these trees. In this talk, I will review a classical construction of this polytope and present generalizations to related families of polytopes such as permutreehedra and quotientopes. Based on joint works with Viviane Pons (Univ. Orsay) and Francisco Santos (Univ. Cantabria).