摘要
根据齐次微分方程的等秩性质,利用Euler-Lagrange方程变分原理及同伦算子可构造出非线性PDE的多项式形式的守恒律.利用此方法对Kaup-Boussinesq(KB)方程组进行了研究,得到了它们的部分守恒律.
Polynomial conservation laws of nonlinear PDF can be constructed using the variational principles of Euler-Lagrange equation and homotopy operators based on the rank properties of homogeneous differential equation.In the term of this methods,studied Kaup-Boussinesq(KB)systems,obtained partial conservation law.
出处
《高师理科学刊》
2011年第2期33-35,50,共4页
Journal of Science of Teachers'College and University