The local well-posedness, existence and uniqueness of weak solutions for a model equation for shallow water waves of moderate amplitude

The local well-posedness, existence and uniqueness of weak solutions for a model equation for shallow water waves of moderate amplitude
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中等幅度浅水波模型方程的局部适定性及弱解的存在唯一性

DOI:
10.1016/j.jde.2015.01.014
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发表时间:
2015-06
期刊:
J. Differential Equations
影响因子:
--
通讯作者:
Shouming Zhou
Shouming Zhou
中科院分区:
其他
文献类型:
--
作者:
Shouming Zhou

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本文讨论了Constantin和Lannes(2009)[20]提出的浅水区中等振幅波浪自由面演化非线性方程的柯西问题。利用拟抛物正则化技巧,通过一个极限方法,得到了Sobolev空间Hs(R)(s> 3/2)中强解的局部适定性.在低阶Sobolev空间Hs(R)中,得到了该方程弱解存在的一个充分条件,其中1
This paper deals with the Cauchy problem for a nonlinear equation modeling the evolution of the free surface for waves of moderate amplitude in the shallow water regime, which was proposed by Constantin and Lannes (2009)[20]. Applying the pseudoparabolic regularization technique, the local well-posedness of strong solutions in Sobolev space H s (R) with s> 3/2 is established via a limiting procedure. Moreover, a sufficient condition for the existence of weak solutions of the equation in lower order Sobolev space H s (R) with 1< s≤ 3/2 is obtained.
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