Abstract:
A method is proposed for investigating the solutions of the weakly
perturbed sine–Gordon equation by means of action–angle variables.
The Green's function of radiation on the background of many-soliton
solutions is calculated in the first approximation in the amplitude.
The dynamics of one- and two-soliton solutions is investigated. The Landau–Lifshitz equation (including the nonintegrable modifications) is reduced in a special case to the perturbed sine–Gordon equation. Some solutions are investigated.
Citation:
V. G. Mikhalev, “Investigation of nonlinear one-dimensional systems by means of the Hamiltonian formalism”, TMF, 76:2 (1988), 199–206; Theoret. and Math. Phys., 76:2 (1988), 804–809
\Bibitem{Mik88}
\by V.~G.~Mikhalev
\paper Investigation of nonlinear one-dimensional systems by means of the Hamiltonian formalism
\jour TMF
\yr 1988
\vol 76
\issue 2
\pages 199--206
\mathnet{http://mi.mathnet.ru/tmf5051}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=965506}
\transl
\jour Theoret. and Math. Phys.
\yr 1988
\vol 76
\issue 2
\pages 804--809
\crossref{https://doi.org/10.1007/BF01028579}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1988U240300004}
Linking options:
https://www.mathnet.ru/eng/tmf5051
https://www.mathnet.ru/eng/tmf/v76/i2/p199
This publication is cited in the following 4 articles:
V. G. Mikhalev, “A generalization of the Kac-Moody algebras with a parameter on an algebraic curve and perturbations of solitons”, Commun.Math. Phys., 134:3 (1990), 633
V. G. Mikhalev, “Solution of the inverse scattering problem for the Landau–Lifshits equation by the Gel'fand–Levitan–Marchenko method”, Funct. Anal. Appl., 23:3 (1989), 233–235
V. G. Mikhalev, “On complete integrability of the O(3)-field in the class of rapidly decreasing functions”, J. Soviet Math., 59:5 (1992), 1092–1096
Vladimir G. Mikhalev, “Complete integrability of the asymmetric chiral O(3)-field equation in a class of rapidly decreasing functions”, Physica D: Nonlinear Phenomena, 40:3 (1989), 421