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The splitting of variables and constraints in the formulation of integer programming models

Williams, H. Paul (1997) The splitting of variables and constraints in the formulation of integer programming models. European journal of operational research, 100 (3). pp. 623-628. ISSN 0377-2217

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Abstract

The splitting of variables in an integer programming model into the sum of other variables can allow the constraints to be disaggregated, leading to a more constrained (tighter) linear programming relaxation. Well known examples of such reformulations are quoted from the literature. They can be viewed as instances of some general methods of performing such reformulations, namely disjunctive formulations, partial network reformulations and a method based on the introduction of auxiliary variables.

Item Type: Article
Official URL: http://www.elsevier.com/locate/ejor
Additional Information: © 1997 Elsevier Science B.V.
Uncontrolled Keywords: Integer programming, reformulation
Library of Congress subject classification: Q Science > QA Mathematics
Sets: Research centres and groups > Management Science Group
Departments > Management
Rights: http://www.lse.ac.uk/library/rights/LSERO.htm
URL: http://eprints.lse.ac.uk/31634/

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