Vakhrameev, S. A. A bang-bang theorem with a finite number of switchings for nonlinear smooth control systems. (English) Zbl 0926.49013 J. Math. Sci., New York 85, No. 3, 2002-2016 (1997). Reviewer: M.I.Krastanov (Sofia) MSC: 49K15 49K30 PDF BibTeX XML Cite \textit{S. A. Vakhrameev}, J. Math. Sci., New York 85, No. 3, 2002--2016 (1997; Zbl 0926.49013) Full Text: DOI
Tretiyak, A. I. Sufficient conditions for local controllability and high-order necessary conditions for optimality. A differential-geometric approach. (English) Zbl 1078.93511 J. Math. Sci., New York 85, No. 3, 1899-2001 (1997). MSC: 93B05 49K15 93B29 93C10 PDF BibTeX XML Cite \textit{A. I. Tretiyak}, J. Math. Sci., New York 85, No. 3, 1899--2001 (1997; Zbl 1078.93511) Full Text: DOI