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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >High-order breathers, lumps, and semi-rational solutions to the (2+1)-dimensional Hirota-Satsuma-Ito equation
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High-order breathers, lumps, and semi-rational solutions to the (2+1)-dimensional Hirota-Satsuma-Ito equation

机译:(2 + 1) - 二维Hirota-Satsuma-ITO方程的高阶呼吸器,肿块和半合理解决方案

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Under investigation in this work is the (2 + 1)-dimensional Hirota-Satsuma-Ito (HSI) equation. By employing Bell's polynomials, bilinear formalism of the HSI equation is succinctly obtained. With the aid of the obtained bilinear formalism, we first construct general high-order soliton solutions by using Hirota's bilinear method combined with the perturbation expansion. By taking particular complex conjugate conditions of the high-order soliton solutions, high-order breather solutions and the mixed solutions consisting of breathers and line solitons are succinctly derived. We further generate rational solutions termed high-order lumps by taking a long wave limit. Finally, we investigate two types of semi-rational solutions, which describe interaction between lumps and line solitons, or between lumps and breathers. These collisions are elastic, which do not lead to any changes of amplitudes and velocities, and shapes of the line solitons, breathers and lumps after interaction.
机译:在这项工作的调查中是(2 + 1) - 二维弘罗-Satsuma-ITO(HSI)方程。 通过采用贝尔的多项式,HSI方程的双线性形式主义是简洁的。 借助获得的双线性形式主义,我们首先通过使用Hirota的双线性方法与扰动扩张相结合构建一般的高阶孤子解决方案。 通过特殊的复杂共轭条件,高阶孤子解决方案,高阶呼吸溶液和由呼吸和线孤子组成的混合解决方案简明扼要地得出。 我们进一步通过采用长波极限来产生高阶块的合理解决方案。 最后,我们研究了两种类型的半合理解决方案,描述了块状和线孤子之间的相互作用,或在块状和呼吸之间。 这些碰撞是弹性的,其不会导致较大的幅度和速度的变化,以及相互作用后的线孤子,呼吸和肿块的形状。

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