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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Higher-order rogue wave solutions of the Kadomtsev Petviashvili-Benjanim Bona Mahony (KP-BBM) model via the Hirota-bilinear approach
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Higher-order rogue wave solutions of the Kadomtsev Petviashvili-Benjanim Bona Mahony (KP-BBM) model via the Hirota-bilinear approach

机译:通过Hirota-Bilinear方法,Kadomtsev Petviashvili-Benjanim Bona Mahony(KP-BBM)模型的高阶流氓波解决方案

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We study the higher-order rogue wave solutions of the Kadomtsev Petviashvili-Benjanim Bona Mahony (KP-BBM) model with and without controllable center via the Hirota bilinear approach. To construct higher-order rogue wave solutions of the model, we apply cross-product terms in a polynomial expression as a test function. We construct three kinds of rogue waves with center at the origin and three kinds of higher-order rogue waves with a controllable center by choosing different test functions. We show how the center can control the shapes and orders of the rogue waves by choosing the values of parameters of the center. In particular, the 3-rogue wave solutions exhibit double rogue waves for lower values and distinct triple rogue waves in a triangular structure for a sufficiently large value parameters of the center. Moreover, the 6-rogue wave solutions of the model present lower-order rogue waves for small values and higher-order rogue waves for large value parameters of the center. It is shown that the order of the rogue gradually increases for rising value of parameters, and it will be maximum six distinct rogues for a sufficiently large values. Finally, we explain the solutions of the model in 3D and in density plots graphically.
机译:我们利用Hirota双线性方法研究了Kadomtsev-Petviashvili-Benjanim-Bona-Mahony(KP-BBM)模型在有可控中心和无可控中心情况下的高阶流氓波解。为了构造该模型的高阶游荡波解,我们将多项式表达式中的叉积项作为测试函数。通过选择不同的测试函数,我们构造了三种中心为原点的流氓波和三种中心可控的高阶流氓波。我们展示了中心如何通过选择中心的参数值来控制流氓波的形状和顺序。特别是,对于较低的值,3-rogue波解表现为双rogue波,对于足够大的中心参数值,在三角形结构中表现为明显的三重rogue波。此外,该模型的6阶流氓波解对中心的小值参数呈现低阶流氓波,对中心的大值参数呈现高阶流氓波。结果表明,随着参数值的增加,流氓的阶数逐渐增加,当参数值足够大时,流氓的阶数最多为六个不同的流氓。最后,我们以3D和密度图的形式解释了模型的解决方案。

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