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math.OC2023
Extended formulations for the integer hull of strictly -modular cographic polyhedral cones
Joseph Paat, Zach Walsh, Luze Xu
Conforti et al. give a compact extended formulation for a class of bimodular-constrained integer programs, namely those that model the stable set polytope of a graph with no disjoi…
math.OC2023
On computing sparse generalized inverses
Gabriel Ponte, Marcia Fampa, Jon Lee +1
The well-known M-P (Moore-Penrose) pseudoinverse is used in several linear-algebra applications; for example, to compute least-squares solutions of inconsistent systems of linear e…