Main Subjects = Nonlinear programming
Number of Articles: 7
A mathematical model for competitive location problem with product selection

Volume 27, Issue 4, July and August 2020, Pages 2157-2176

S.J. Sadjadi; M. Gorji Ashtiani; A. Makui; R. Ramezanian


Reliable hierarchical multimodal hub location problem: Models and Lagrangian relaxation algorithm

Volume 27, Issue 3, May and June 2020, Pages 1525-1543

E. Korani; A. Eydi; I. Nakhai Kamalabadi


The application of multivariate analysis approaches to designing NSBM model considering undesirable variable and shared resources

Volume 27, Issue 2, March and April 2020, Pages 893-917

H. Ghasemi Toudeshki; E. Najafi; F. Hosseinzadeh Lotfi; F. Movahedi-Sobhani


Multi-period configuration of forward and reverse integrated supply chain networks through transport mode

Volume 27, Issue 2, March and April 2020, Pages 935-955

A. Eydi; S. Fazayeli; H. Ghafouri