The University of Michigan Combinatorics Seminar


Abstract 

Let a(z) be a polynomial which has positive integer coefficients, a constant term of one, and only real zeros. We show that a(z) appears in the numerator of the Hilbert series of some CohenMacaulay ring, and present some evidence in favor of the stronger assertion that a(t) is the fpolynomial of a simplicial complex. This is joint work with Mark Skandera. 