Jonker, Peter; Still, Georg; Twilt, Frank On the stratification of a class of specially structured matrices. (English) Zbl 1167.90650 Optimization 58, No. 6, 685-712 (2009). MSC: 90C30 58A35 90C31 PDFBibTeX XMLCite \textit{P. Jonker} et al., Optimization 58, No. 6, 685--712 (2009; Zbl 1167.90650) Full Text: DOI
Jonker, P.; Still, G.; Twilt, F. One-parametric linear-quadratic optimization problems. (English) Zbl 0996.90070 Ann. Oper. Res. 101, 221-253 (2001). MSC: 90C30 90C31 58A35 PDFBibTeX XMLCite \textit{P. Jonker} et al., Ann. Oper. Res. 101, 221--253 (2001; Zbl 0996.90070) Full Text: DOI
Jongen, Hubertus Th.; Jonker, Peter; Twilt, Frank Nonlinear optimization in finite dimensions. Morse theory, Chebyshev approximation, transversality, flows, parametric aspects. (English) Zbl 0985.90083 Nonconvex Optimization and Its Applications. 47. Dordrecht: Kluwer Academic Publishers. x, 510 p. (2000). Reviewer: Thomas J.Bartsch (Gießen) MSC: 90C30 90C31 90C52 90C53 PDFBibTeX XMLCite \textit{H. Th. Jongen} et al., Nonlinear optimization in finite dimensions. Morse theory, Chebyshev approximation, transversality, flows, parametric aspects. Dordrecht: Kluwer Academic Publishers (2000; Zbl 0985.90083)
Henn, M.; Jonker, P.; Twilt, F. On the critical sets of one-parameter quadratic optimization problems. (English) Zbl 0845.90113 Durier, Roland (ed.) et al., Recent developments in optimization. 7th French-German conference on optimization, Dijon, France, June 27-July 2, 1994. Berlin: Springer-Verlag. Lect. Notes Econ. Math. Syst. 429, 183-197 (1995). MSC: 90C31 90C20 90C30 PDFBibTeX XMLCite \textit{M. Henn} et al., Lect. Notes Econ. Math. Syst. 429, 183--197 (1995; Zbl 0845.90113)
Jonker, Peter; Still, Georg; Twilt, Frank On the partition of real symmetric matrices according to the multiplicities of their eigenvalues. (English) Zbl 0804.49022 Control Cybern. 23, No. 1-2, 169-181 (1994). Reviewer: J.Guddat (Berlin) MSC: 49K40 PDFBibTeX XMLCite \textit{P. Jonker} et al., Control Cybern. 23, No. 1--2, 169--181 (1994; Zbl 0804.49022)
Jonker, P.; Streng, M.; Twilt, F. Chebyshev line approximation: A sensitivity analysis. (English) Zbl 0839.90115 Guddat, Jürgen (ed.) et al., Parametric optimization and related topics. III. Proceedings of the 3rd conference held in Güstrow, Germany, August 30 - September 5, 1991. Frankfurt am Main: Peter Lang Verlag. Approximation Optimization. 3, 303-322 (1993). MSC: 90C31 49K40 PDFBibTeX XMLCite \textit{P. Jonker} et al., in: Parametric optimization and related topics. III. Proceedings of the 3rd conference held in Güstrow, Germany, August 30 - September 5, 1991. Frankfurt am Main: Peter Lang Verlag. 303--322 (1993; Zbl 0839.90115)
Jongen, Hubertus Th.; Jonker, Peter; Twilt, Frank Parametric optimization: The Kuhn-Tucker set. (English) Zbl 0636.90091 Parametric optimization and related topics, Int. Conf., Plaue/GDR 1985, Math. Res. 35, 196-208 (1987). MSC: 90C31 PDFBibTeX XML
Jongen, H. Th.; Jonker, P.; Twilt, F. Nonlinear optimization in \({\mathbb{R}}^ n\). II. Transversality, flows, parametric aspects. (English) Zbl 0611.90071 Methoden und Verfahren der Mathematischen Physik, Bd. 32. Frankfurt am Main-Bern-New York: Verlag Peter Lang. pp. 265-560. sFr. 65.00 (1986). Reviewer: W.Krabs MSC: 90C31 90C30 49M37 53A07 53B20 90-02 PDFBibTeX XML
Jongen, H. Th.; Jonker, P.; Twilt, F. Critical sets in parametric optimization. (English) Zbl 0599.90114 Math. Program. 34, 333-353 (1986). Reviewer: E.Tamm MSC: 90C31 90C30 PDFBibTeX XMLCite \textit{H. Th. Jongen} et al., Math. Program. 34, 333--353 (1986; Zbl 0599.90114) Full Text: DOI
Jongen, H. Th.; Jonker, P.; Twilt, F. One-parameter families of optimization problems: equality constraints. (English) Zbl 0556.90086 J. Optimization Theory Appl. 48, 141-161 (1986). MSC: 90C31 PDFBibTeX XMLCite \textit{H. Th. Jongen} et al., J. Optim. Theory Appl. 48, 141--161 (1986; Zbl 0556.90086) Full Text: DOI
Jongen, H. Th.; Jonker, P.; Twilt, F. On index-sequence realization in parametric optimization. (English) Zbl 0522.90086 Seminarber., Humboldt-Univ. Berlin, Sekt. Math. 50, 159-166 (1983). MSC: 90C31 58E05 90C30 PDFBibTeX XMLCite \textit{H. Th. Jongen} et al., Seminarber., Humboldt-Univ. Berlin, Sekt. Math. 50, 159--166 (1983; Zbl 0522.90086)
Jongen, H. Th.; Jonker, P.; Twilt, F. On deformation in optimization. (English) Zbl 0459.90075 Methods Oper. Res. 37, 171-184 (1980). MSC: 90C30 55P99 05C99 90C31 PDFBibTeX XMLCite \textit{H. Th. Jongen} et al., Methods Oper. Res. 37, 171--184 (1980; Zbl 0459.90075)