Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7543769 | Operations Research Letters | 2018 | 4 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Alper Atamtürk, Oktay Günlük,