Varsan, C. Non-linear functional analysis and applications to optimal control theory. (English) Zbl 0356.49002 Control Theory Top. Funct. Anal., Vol. II, Lect. int. Semin. Course, Trieste 1974, 75-156 (1976). Reviewer: I. Troch MSC: 49-02 46N99 PDF BibTeX XML
Varsan, C. Sufficient conditions of optimality of second order in Banach spaces. (English) Zbl 0342.49009 Rev. Roum. Math. Pures Appl. 20, 239-251 (1975). MSC: 49K27 46E15 PDF BibTeX XML Cite \textit{C. Varsan}, Rev. Roum. Math. Pures Appl. 20, 239--251 (1975; Zbl 0342.49009)
Varsan, C. Necessary conditions of second order in Banach spaces and minmax problems. (English) Zbl 0342.49008 Rev. Roum. Math. Pures Appl. 20, 363-376 (1975). MSC: 49K27 46E15 PDF BibTeX XML Cite \textit{C. Varsan}, Rev. Roum. Math. Pures Appl. 20, 363--376 (1975; Zbl 0342.49008)
Varsan, C. Sufficient conditions for nonlinear optimal control problems. (English) Zbl 0303.49013 Rev. Roum. Math. Pures Appl. 19, 511-521 (1974). MSC: 49K27 46E15 93C10 PDF BibTeX XML Cite \textit{C. Varsan}, Rev. Roum. Math. Pures Appl. 19, 511--521 (1974; Zbl 0303.49013)