NCP Functions Applied to Lagrangian Globalization for the Nonlinear Complementarity Problem

  • Authors:
  • Liquin Qi;Yu-Fei Yang

  • Affiliations:
  • Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (e-mail: maqilq@polyu.edu.hk);College of Mathematics and Econometrics, Hunan University, Chang-sha, P.R. China

  • Venue:
  • Journal of Global Optimization
  • Year:
  • 2002

Quantified Score

Hi-index 0.00

Visualization

Abstract

Based on NCP functions, we present a Lagrangian globalization (LG) algorithm model for solving the nonlinear complementarity problem. In particular, this algorithm model does not depend on some specific NCP function. Under several theoretical assumptions on NCP functions we prove that the algorithm model is well-defined and globally convergent. Several NCP functions applicable to the LG-method are analyzed in details and shown to satisfy these assumptions. Furthermore, we identify not only the properties of NCP functions which enable them to be used in the LG method but also their properties which enable the strict complementarity condition to be removed from the convergence conditions of the LG method. Moreover, we construct a new NCP function which possesses some favourable properties.