## A note on palindromic $\delta$-vectors for certain rational polytopes

##### Authors
Fiset, Matthew H. J.
Kasprzyk, Alexander M.
##### Description
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 $\delta$-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.
Comment: 4 pages
##### Keywords
Mathematics - Combinatorics, 05A15, 11H06