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A Primal-Dual Interior Point Algorithm for Linear Programming

In: Progress in Mathematical Programming

Author

Listed:
  • Masakazu Kojima
  • Shinji Mizuno
  • Akiko Yoshise

Abstract

This chapter presents an algorithm that works simultaneously on primal and dual linear programming problems and generates a sequence of pairs of their interior feasible solutions. Along the sequence generated, the duality gap converges to zero at least linearly with a global convergence ratio (1 — η/n); each iteration reduces the duality gap by at least η/n. Here n denotes the size of the problems and η a positive number depending on initial interior feasible solutions of the problems. The algorithm is based on an application of the classical logarithmic barrier function method to primal and dual linear programs, which has recently been proposed and studied by Megiddo.

Suggested Citation

  • Masakazu Kojima & Shinji Mizuno & Akiko Yoshise, 1989. "A Primal-Dual Interior Point Algorithm for Linear Programming," Springer Books, in: Nimrod Megiddo (ed.), Progress in Mathematical Programming, chapter 0, pages 29-47, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4613-9617-8_2
    DOI: 10.1007/978-1-4613-9617-8_2
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