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arXiv 2301.08705nlin.SIcond-mat.other
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椭圆函数背景下sine-Gordon方程的多孤子解

Multi-soliton solutions of the sine-Gordon equation with elliptic-function background

Daisuke A. Takahashi

摘要:

利用逆散射方法导出了椭圆函数背景下sine-Gordon方程的多孤子解。在我们制定的关键工具是拉克斯对书面的$4\times4$矩阵微分算子Takhtadzhyan和Faddeev在1974年,这使我们能够使用传统形式的积分表示的Jost解决方案和Krichever的理论交换微分算子。作为副产品,我们还提供了广义正交性和完备性关系的特征函数与不定内积。多孤子解由θ函数的行列式表示,孤子引起的背景晶格位移也由加法公式确定。一个扭结和一个呼吸器的解决方案是由动画GIF。

英文摘要:

The multi-soliton solution of the sine-Gordon equation in the presence of elliptic-function background is derived by the inverse scattering method. The key tool in our formulation is the Lax pair written by $4\times4$ matrix differential operators given by Takhtadzhyan and Faddeev in 1974, which enables us to use the conventional form of the integral representation of the Jost solutions and Krichever's theory of commuting differential operators. As a by-product we also provide generalized orthogonality and completeness relations for eigenfunctions associated with indefinite inner product. The multi-soliton solution is expressed by a determinant of theta functions and the shift of the background lattice due to solitons is also determined using addition formula. One kink and one breather solutions are presented by animated gifs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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