Mathematical Programming

, Volume 48, Issue 1–3, pp 437–445 | Cite as

Error bounds for nondegenerate monotone linear complementarity problems

  • O. L. Mangasarian


Error bounds and upper Lipschitz continuity results are given for monotone linear complementarity problems with a nondegenerate solution. The existence of a nondegenerate solution considerably simplifies the error bounds compared with problems for which all solutions are degenerate. Thus when a point satisfies the linear inequalities of a nondegenerate complementarity problem, the residual that bounds the distance from a solution point consists of the complementarity condition alone, whereas for degenerate problems this residual cannot bound the distance to a solution without adding the square root of the complementarity condition to it. This and other simplified results are a consequence of the polyhedral characterization of the solution set as the intersection of the feasible region {z∣Mz + q ≥ 0, z ≥ 0} with a single linear affine inequality constraint.

Key words

Linear complementarity error bounds Lipschitz continuity 


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Copyright information

© The Mathematical Programming Society, Inc. 1990

Authors and Affiliations

  • O. L. Mangasarian
    • 1
  1. 1.Computer Sciences DepartmentUniversity of WisconsinMadisonUSA

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