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math.OC2026
Polyhedral results for two classes of submodular sets with GUB constraints
Weikang Qian, Keyan Li, Wei-Kun Chen +1
In this paper, we investigate the polyhedral structure of two submodular sets with generalized upper bound (GUB) constraints, which arise as important substructures in various real…
math.OC2026
On strong valid inequalities for a class of mixed-integer nonlinear sets with box constraints
Keyan Li, Yan-Ru Wang, Wei-Kun Chen +1
In this paper, we investigate the mixed-integer nonlinear set with box constraints , where is a univariate concave fu…