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On integer points in polyhedra: A lower bound
Authors:Imre Bárány  Roger Howe  László Lovász
Institution:(1) Mathematical Institute, Pf. 127, 1364 Budapest, Hungary;(2) Department of Mathematics, Yale University, 06520 New Haven, CT, U. S. A.;(3) Department of Computer Science, Eötvös University, Múzeum krt. 6-8, 1088 Budapest, Hungary;(4) Princeton University, 08544 Princeton, NJ, U. S. A.
Abstract:Given a polyhedronPsubRopf we writeP I for the convex hull of the integral points inP. It is known thatP I can have at most135-2 vertices ifP is a rational polyhedron with size phgr. Here we give an example showing thatP I can have as many as OHgr(phiv n–1) vertices. The construction uses the Dirichlet unit theorem.The results of the paper were obtained while this author was visiting the Cowles Foundation at Yale University
Keywords:52 C 07  11 H 06
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