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math.CO2013
Ehrhart polynomials with negative coefficients
Takayuki Hibi, Akihiro Higashitani, Akiyoshi Tsuchiya +1
It is shown that, for each , there exists an integral convex polytope of dimension such that each of the coefficients of of…
math.CO2013
Minkowski sum of polytopes and its normality
Akihiro Higashitani
In this paper, we consider the normality or the integer decomposition property (IDP, for short) for Minkowski sums of integral convex polytopes. We discuss some properties on the t…