Modeling the Gateway Location Problem for Multicommodity Flow Rerouting

Author(s):  
Maurizio Bruglieri ◽  
Paola Cappanera ◽  
Alberto Colorni ◽  
Maddalena Nonato
Author(s):  
Mostafa Khatami ◽  
Amir Salehipour

1981 ◽  
Vol 32 (9) ◽  
pp. 803 ◽  
Author(s):  
J. Karkazis ◽  
T. B. Boffey

2020 ◽  
Vol 1575 ◽  
pp. 012188
Author(s):  
Chong Xiang ◽  
Xiaoshen Li ◽  
Guanglei Sun

Algorithmica ◽  
2021 ◽  
Author(s):  
Alexander Grigoriev ◽  
Tim A. Hartmann ◽  
Stefan Lendl ◽  
Gerhard J. Woeginger

AbstractWe study a continuous facility location problem on a graph where all edges have unit length and where the facilities may also be positioned in the interior of the edges. The goal is to position as many facilities as possible subject to the condition that any two facilities have at least distance $$\delta$$ δ from each other. We investigate the complexity of this problem in terms of the rational parameter $$\delta$$ δ . The problem is polynomially solvable, if the numerator of $$\delta$$ δ is 1 or 2, while all other cases turn out to be NP-hard.


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