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

Williams, H.P. and Brailsford, S.C. (1997) The splitting of variables and constraints in the formulation of integer programming models European Journal of Operational Research, 100, (3), pp. 623-628. (doi:10.1016/S0377-2217(96)00236-6).

Record type: Article


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.

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Published date: August 1997


Local EPrints ID: 36255
ISSN: 0377-2217
PURE UUID: ea991830-4d76-4ef2-8ee3-2bb71d1fc7a0

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Date deposited: 12 Feb 2007
Last modified: 17 Jul 2017 15:45

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Author: H.P. Williams
Author: S.C. Brailsford

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