Mathematics – Combinatorics
Scientific paper
2011-09-05
Mathematics
Combinatorics
4 pages, We changed the order of the auhors and omitted a lot of parts of the paper. (If you are interested in omitted parts,
Scientific paper
The symmetric edge polytopes of odd cycles (del Pezzo polytopes) are known as
smooth Fano polytopes. In this paper, we show that if the length of the cycle
is 127, then the Ehrhart polynomial has a root whose real part is greater than
the dimension. As a result, we have a smooth Fano polytope that is a
counterexample to the two conjectures on the roots of Ehrhart polynomials.
Ohsugi Hidefumi
Shibata Kazuki
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