Some perturbation theory for linear programming

Some perturbation theory for linear programming

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Article ID: iaor19961380
Country: Netherlands
Volume: 65
Issue: 1
Start Page Number: 73
End Page Number: 91
Publication Date: May 1994
Journal: Mathematical Programming (Series A)
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Abstract:

This paper examines a few relations between solution characteristics of an LP and the amount by which the LP must be perturbed to obtain either a primal infeasible LP or a dual infeasible LP. The paper considers such solution characteristics as the size of the optimal solution and the sensitivity of the optimal value to data perturbations. It shows for example, that an LP has a large optimal solution, or has a sensitive optimal value, only if the instance is nearly primal infeasible or dual infeasible. The results are not particularly surprising but they do formalize an interesting viewpoint which apparently has not been made explicit in the linear programming literature.

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