165 eng Tseng, Paul Merit functions for semi-definite complementarity problems Merit functions such as the gap function, the regularized gap function, the implicit Lagrangian, and the norm squared of the Fischer-Burmeister function have played an important role in the solution of complementarity problems defined over the cone of nonnegative real vectors. We study the extension of these merit functions to complementarity problems defined over the cone of block-diagonal symmetric positive semi-definite real matrices. The extension suggests new solution methods for the latter problems.. Article de fons. Semi-definite complementarity problems Merit functions Gap functions Implicit Lagrangian Fischer-Burmeister function Article Elsevier vol. 83 n. 2 (1998) p. 159-185 83:2<159 Mathematical Programming 0025-5610 00255610v83n2p159 159 185 10 2 83 00255610v83n2 1998 ARTPUB info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://ddd.uab.cat/uab/matpro/00255610v83n2p159.pdf 27 1138740