Investigation of a dynamical system in a neighborhood of an invariant toroidal manifold in the general case

A dynamical system is studied in the neighborhood of an invariant toroidal manifold for the most general relationship between the dimensionality of the phase space and the dimensionality of the manifold.Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 46, No. 10, pp. 1399–1408, October, 1994.