The Existence of Heteroclinic Travelling Waves in the Discrete Sine-Gordon Equation with Nonlinear Interaction on a 2D-Lattice

• Published in: Журнал математической физики, анализа, геометрии
• Date: 2018
• Main Author: Bak, S.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2018
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/145856
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: The Existence of Heteroclinic Travelling Waves in the Discrete Sine-Gordon Equation with Nonlinear Interaction on a 2D-Lattice / S. Bak // Журнал математической физики, анализа, геометрии. — 2018. — Т. 14, № 1. — С. 16-26. — Бібліогр.: 19 назв. — англ.

The article deals with the discrete sine-Gordon equation that describes an infinite system of nonlinearly coupled nonlinear oscillators on a 2D-lattice with the external potential V (r) = K(1 - cos r). The main result concerns the existence of heteroclinic travelling waves solutions. Sufficient cond...