Alper Atamtürk, Oktay Günlük
Networks
In network design problems,capacity constraints are modeled in three different ways depending on the application: directed, bidirected and undirected. In the literature, polyhedral investigations for strengthening mixed-integer formulations are done separately for each model. In this note, we examine the relationship between these models to provide a unifying approach and show that one can indeed translate valid inequalities from one to the others.
Alper Atamtürk, Oktay Günlük
Networks
Sanjeeb Dash, Ricardo Fukasawa, et al.
Mathematical Programming
Amir Ali Ahmadi, Oktay Günlük
CDC 2015
Oktay Günlük
Discrete Optimization