William Hua

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Let ∆(d, n) be the maximum possible diameter of the vertex-edge graph over all d-dimensional polytopes defined by n inequalities. The Hirsch bound holds for particular n and d if ∆(d, n) ≤ n − d. Francisco San-tos recently resolved a question open for more than five decades by showing that ∆(d, 2d) = d + 1 for d = 43; the dimension was then lowered to 20 by(More)
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