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Basis- and tripartition identification for quadratic programming and lineair complementary problems; From an interior solution to an optimal basis and viceversa

Author

Listed:
  • Berkelaar, A.B.
  • Jansen, B.
  • Roos, K.
  • Terlaky, T.

Abstract

Optimal solutions of interior point algorithms for linear and quadratic programming and linear complementarity problems provide maximal complementary solutions. Maximal complementary solutions can be characterized by optimal (tri)partitions. On the other hand, the solutions provided by simplex--based pivot algorithms are given in terms of complementary bases. A basis identification algorithm is an algorithm which generates a complementary basis, starting from any complementary solution. A tripartition identification algorithm is an algorithm which generates a maximal complementary solution (and its corresponding tripartition), starting from any complementary solution. In linear programming such algorithms were respectively proposed by Megiddo in 1991 and Balinski and Tucker in 1969. In this paper we will present identification algorithms for quadratic programming and linear complementarity problems with sufficient matrices. The presented algorithms are based on the principal pivot transform and the orthogonality property of basis tableaus.

Suggested Citation

  • Berkelaar, A.B. & Jansen, B. & Roos, K. & Terlaky, T., 1996. "Basis- and tripartition identification for quadratic programming and lineair complementary problems; From an interior solution to an optimal basis and viceversa," Econometric Institute Research Papers EI 9614-/A, Erasmus University Rotterdam, Erasmus School of Economics (ESE), Econometric Institute.
    • Handle: RePEc:ems:eureir:1380
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