TY  - INPR
A1  - Jütte, Silke
A1  - Gavriliouk, Elena
A1  - Hamacher, Horst
T1  - Polyhedral Analysis of Uncapacitated Single Allocation p-Hub Center Problems
N2  - In contrast to p-hub problems with a summation objective (p-hub median), minmax hub problems (p-hub center) have not attained much attention in the literature. In this paper, we give a polyhedral analysis of the uncapacitated single allocation p-hub center problem (USApHCP). The analysis will be based on a radius formulation which currently yields the most efficient solution procedures. We show which of the valid inequalities in this formulation are facet-defining and present non-elementary classes of facets, for which we propose separation problems. A major part in our argumentation will be the close connection between polytopes of the USApHCP and the uncapacitated p-facility location (pUFL). Hence, the new classes of facets can also be used to improve pUFL formulations.
T3  - Report in Wirtschaftsmathematik (WIMA Report) - 109 
KW  - hub location
KW  - polyhedral analysis
KW  - uncapacitated facility location
Y1  - 2007
UR  - https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1858
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-14927
ER  -