A note on palindromic δ-vectors for certain rational polytopes
Fiset, Matthew and Kasprzyk, Alexander M. (2008) A note on palindromic δ-vectors for certain rational polytopes. Electronic Journal of Combinatorics, 15 . N18/1-N18/4. ISSN 1077-8926
Let P be a convex polytope containing the origin, whose dual is a lattice polytope. Hibi's Palindromic Theorem tells us that if P is also a lattice polytope then the Ehrhart δ-vector of P is palindromic. Perhaps less well-known is that a similar result holds when P is rational. We present an elementary lattice-point proof of this fact.
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