A note on the split rank of intersection cuts

Dey, Santanu S.
(2008) , 21 pages

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  • Dey, Santanu S.Université catholique de Louvain
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Abstract
In this note, we present a simple geometric argument to determine a lower bound on the split rank of intersection cuts. As a first step of this argument, a polyhedral subset of the latticefree convex set that is used to generate the intersection cut is constructed. We call this subset the restricted lattice-free set. It is then shown that [log2(l)] is a lower bound on the split rank of the intersection cut, where l is the number of integer points lying on the boundary of the restricted lattice-free set satisfying the condition that no two points lie on the same facet of the restricted lattice-free set. The use of this result is illustrated to obtain a lower bound of [log2(n +1)] on the split rank of n-row mixing inequalities.
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Citations

Dey, S. S. (2008). A note on the split rank of intersection cuts (CORE Discussion Papers 2008/56). https://hdl.handle.net/2078.5/250244