Matsyuk, R. Ya. Exterior differential equations in generalized mechanics and symmetry properties. (Russian) Zbl 0719.58015 Methods for the investigations of differential and integral operators, Collect. Sci. Works, Kiev, 153-160 (1989). [For the entire collection see Zbl 0684.00012.] The author studies invariance questions of infinitesimal groups of transformations and the reciprocal problem of variational calculus. Reviewer: I.Mihut (Timişoara) MSC: 58E40 Variational aspects of group actions in infinite-dimensional spaces Keywords:invariance; infinitesimal groups of transformations; variational calculus Citations:Zbl 0684.00012 PDF BibTeX XML OpenURL