A homogeneous model for monotone mixed horizontal linear complementarity problems

Cosmin G. Petra () and Florian A. Potra ()
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Cosmin G. Petra: Lawrence Livermore National Laboratory
Florian A. Potra: University of Maryland, Baltimore County

Computational Optimization and Applications, 2019, vol. 72, issue 1, No 8, 267 pages

Abstract: Abstract We propose a homogeneous model for the class of mixed horizontal linear complementarity problems. The proposed homogeneous model is always solvable and provides the solution of the original problem if it exists, or a certificate of infeasibility otherwise. Our formulation preserves the sparsity of the original formulation and does not reduce to the homogeneous model of the equivalent standard linear complementarity problem. We study the properties of the model and show that interior-point methods can be used efficiently for the numerical solutions of the homogeneous problem. Numerical experiments show convincingly that it is more efficient to use the proposed homogeneous model for the mixed horizontal linear complementarity problem than to use known homogeneous models for the equivalent standard linear complementarity problem.

Keywords: Mixed horizontal LCP; Homogenization; Interior-point method (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s10589-018-0035-x

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