Gelfand, I. M.; Fomin, S. V. Calculus of variations. Transl. from the Russian and edited by Richard A. Silverman. Reprint of the 1963 original. (English) Zbl 0964.49001 Mineola, NY: Dover Publications. vii, 232 p. (2000). See the review of the revised English edition from 1965 in Zbl 0127.05402. Cited in 1 ReviewCited in 133 Documents MathOverflow Questions: Variational Problems with Subsidiary Conditions MSC: 49-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to calculus of variations and optimal control Keywords:calculus of variations; Euler equations; sufficient conditions; weak extremum; strong extremum; direct methods Citations:Zbl 0127.05402 PDFBibTeX XMLCite \textit{I. M. Gelfand} and \textit{S. V. Fomin}, Calculus of variations. Transl. from the Russian and edited by Richard A. Silverman. Reprint of the 1963 original. Mineola, NY: Dover Publications (2000; Zbl 0964.49001)