Ward, D. E. A constraint qualification in quasidifferentiable programming. (English) Zbl 0741.90069 Optimization 22, No. 5, 661-668 (1991). Reviewer: Wang Shouyang (Delft) MSC: 90C30 49J52 26B25 90C25 PDFBibTeX XMLCite \textit{D. E. Ward}, Optimization 22, No. 5, 661--668 (1991; Zbl 0741.90069) Full Text: DOI
Ward, Doug Directional derivative calculus and optimality conditions in nonsmooth mathematical programming. (English) Zbl 0682.49016 J. Inf. Optim. Sci. 10, No. 1, 81-96 (1989). MSC: 49J52 46G05 49K27 90C48 PDFBibTeX XMLCite \textit{D. Ward}, J. Inf. Optim. Sci. 10, No. 1, 81--96 (1989; Zbl 0682.49016) Full Text: DOI
Ward, Doug Convex subcones of the contingent cone in nonsmooth calculus and optimization. (English) Zbl 0629.58007 Trans. Am. Math. Soc. 302, 661-682 (1987). Reviewer: A.Kriegl MSC: 58C20 90C30 46G05 PDFBibTeX XMLCite \textit{D. Ward}, Trans. Am. Math. Soc. 302, 661--682 (1987; Zbl 0629.58007) Full Text: DOI