Complete and incomplete additive doubling variables in linear systems with constant coefficients

M. R. Petritchenko, D. V. Serov

St. Petersburg State Polytechnical University

Abstract: Differential equations and their systems, not associated with any of the variational problems have been put forward to transform up to Hamiltonian form and immerse their solutions into a bundle of extremities. For small momenta the doubled system of the equations corresponds closely with the original one but for the equations in variations.