4/914:15

Matt Beck (FU Berlin / San Fransisco State Uni.)

Title: The Arithmetic of Coxeter Permutahedra

Abstract:

Ehrhart theory measures a polytope P discretely by counting the number of lattice points inside its dilates P, 2P, 3P, ... We compute the Ehrhart quasipolynomials of the standard Coxeter permutahedra for the classical Coxeter groups. A central tool is a description of the Ehrhart theory of a rational translate of an integer zonotope.

4/2314:15

Jonathan Spreer (Univ. Sydney)

TBA