====== Marisa Belk Hughes (Cornell) ====== ====== Quotients of Spheres and the Tutte Polynomial ====== ===== Abstract for the Combinatorics and Geometry/Topology Seminars 2011 October 11 ===== The homology and singular sets of quotients of spheres by linear actions of tori can be computed using the Tutte polynomial of a matroid. ----