Wright, Margaret H. Why a pure primal Newton barrier set may be infeasible. (English) Zbl 0821.65039 SIAM J. Optim. 5, No. 1, 1-12 (1995). This is an informal analysis of the behaviour of the primal Newton barrier method for nonlinear programming. The author shows that the “long step” is “in general” infeasible. Some numerical illustrations are presented. Reviewer: J.F.Bonnans (Le Chesnay) Cited in 7 Documents MSC: 65K05 Numerical mathematical programming methods 90C30 Nonlinear programming Keywords:constrained optimization; numerical examples; primal Newton barrier method; nonlinear programming PDFBibTeX XMLCite \textit{M. H. Wright}, SIAM J. Optim. 5, No. 1, 1--12 (1995; Zbl 0821.65039) Full Text: DOI