Integer programming 20 Valid inequality 15 Branch-and-cut algorithms 14 Integer programming formulations 13 Polytopes 13 Combinatorial optimization 12 Inequalities 11 Polynomials 11 Korn inequality 10 Polyhedral combinatorics 10 Valid inequalities 10 Graph theory 9 Linear programming 8 Separation problems 8 Wireless networks 8 p-Laplacian 8 Combinatorial mathematics 7 Cutting planes 7 Facets 7 John domains 7 Scheduling 7 Topology 7 Algorithms 6 Bell inequalities 6 Computational results 6 Divergence operator 6 Dynamic programming 6 FLUORESCENCIA PARAMETRICA 6 Norm inequalities 6 Poincaré inequality 6