Idczak, D.; Walczak, S. Optimal control of second order systems with infinite time horizon: existence of solutions. (English) Zbl 1202.49003 J. Optim. Theory Appl. 147, No. 2, 205-222 (2010). MSC: 49J15 34H05 PDFBibTeX XMLCite \textit{D. Idczak} and \textit{S. Walczak}, J. Optim. Theory Appl. 147, No. 2, 205--222 (2010; Zbl 1202.49003) Full Text: DOI
Walczak, S. Well-posed and ill-posed optimal control problems. (English) Zbl 0991.49019 J. Optimization Theory Appl. 109, No. 1, 169-185 (2001). Reviewer: Joseph Frédéric Bonnans (Le Chesnay) MSC: 49K40 90C31 PDFBibTeX XMLCite \textit{S. Walczak}, J. Optim. Theory Appl. 109, No. 1, 169--185 (2001; Zbl 0991.49019) Full Text: DOI
Walczak, S. Some properties of cones in normed spaces and their application to investigating extremal problems. (English) Zbl 0504.52001 J. Optimization Theory Appl. 42, 561-582 (1984). MSC: 52A15 46A40 90C25 PDFBibTeX XMLCite \textit{S. Walczak}, J. Optim. Theory Appl. 42, 561--582 (1984; Zbl 0504.52001) Full Text: DOI