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Facets of the axial three-index assignment polytope

Research output: Working paper

Published
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Abstract

We revisit the facial structure of the axial 3-index assignment polytope. After reviewing known classes of facet-defining inequalities, we present a new class of valid inequalities, and show that they are facets of this polytope. This answers a question posed by Qi and Sun~\cite{QiSun00}. Moreover, we show that we can separate these inequalities in polynomial time.