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math.CO2013★ 1 cited
Simple Extensions of Polytopes
Volker Kaibel, Matthias Walter
We introduce the simple extension complexity of a polytope P as the smallest number of facets of any simple (i.e., non-degenerate in the sense of linear programming) polytope which…
math.CO2012
Implementation of a Unimodularity Test
Matthias Walter, Klaus Truemper
This paper describes implementation and computational results of a polynomial test of total unimodularity. The test is a simplified version of a prior method. The program also deci…