Integrability, exact reductions and special solutions of the KP–Whitham equations
Integrability, exact reductions and special solutions of the KP–Whitham equations
复制标题
KP-Whitham 方程的可积性、精确约简和特殊解
DOI:
10.1088/1361-6544/ab8a66
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发表时间:
2020
期刊:
影响因子:
1.7
通讯作者:
Moro, Antonio
中科院分区:
文献类型:
--
作者:
Biondini, Gino;Hoefer, Mark A;Moro, Antonio
Reductions of the KP–Whitham system, namely the (2+ 1)-dimensional hydrodynamic system of five equations that describes the slow modulations of periodic solutions of the Kadomtsev–Petviashvili (KP) equation, are studied. Specifically, the soliton and harmonic wave limits of the KP–Whitham system are considered, which give rise in each case to a four-component (2+ 1)-dimensional hydrodynamic system. It is shown that a suitable change of dependent variables splits the resulting four-component systems into two parts:(i) a decoupled, independent two-component system comprised of the dispersionless KP equation,(ii) an auxiliary, two-component system coupled to the mean flow equations, which describes either the evolution of a linear wave or a soliton propagating on top of the mean flow. The integrability of both four-component systems is then demonstrated by applying the Haantjes tensor test as well as the method of hydrodynamic reductions. Various exact reductions of these systems are then presented that correspond to concrete physical scenarios.
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影响因子:
3.7
作者:
T. Congy;G. El;M. Hoefer
通讯作者:
T. Congy;G. El;M. Hoefer
DOI:
10.1016/j.matcom.2010.05.025
发表时间:
2010-04
期刊:
Math. Comput. Simul.
影响因子:
--
作者:
C. Kao;Y. Kodama
通讯作者:
C. Kao;Y. Kodama
DOI:
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发表时间:
1995
期刊:
影响因子:
--
作者:
C. Dafermos
通讯作者:
C. Dafermos
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. Boiti;F. Pempinelli;A. Pogrebkov;B. Prinari
通讯作者:
B. Prinari
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
V. N. Bogayevskii
通讯作者:
V. N. Bogayevskii