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arXiv · 0912.1068

Convex normality of rational polytopes with long edges

Joseph Gubeladze
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Abstract

We introduce the property of convex normality of rational polytopes and give a dimensionally uniform lower bound for the edge lattice lengths, guaranteeing the property. As an application, we show that if every edge of a lattice d-polytope P has lattice length at least 4d(d+1) then P is normal. This answers in the positive a question raised in 2007. If P is a lattice simplex whose edges have lattice lengths at least d(d+1) then P is even covered by lattice parallelepipeds. For the approach developed here, it is necessary to involve rational polytopes even for applications to lattice polytopes.

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Joseph Gubeladze. 2011-12-13. Convex normality of rational polytopes with long edges. https://arxiv.org/abs/0912.1068

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