Speaker: Richard Ehrenborg, University of Kentucky

Title. Simion's type B associahedron is a pulling triangulation of the Legendre polytope

Abstract: We show that the Simion type B associahedron is combinatorially equivalent to a pulling triangulation of the type A root polytope known as the Legendre polytope. Furthermore, we show that every pulling triangulation of the boundary of the Legendre polytope yields a flag complex. Our triangulation refines a decomposition of the boundary of the Legendre polytope given by Cho.

This is joint work with Gábor Hetyei and Margaret Readdy.

For further information, see Discrete CATS Seminar