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CONSERVATION LAWS FOR EQUATIONS RELATED TO SOIL WATER EQUATIONS

机译:与土壤水方程有关的方程守恒律

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摘要

We obtain all nontrivial conservation laws for a class of (2 + 1) nonlinear evolution partial differential equations which are related to the soil water equations. It is also pointed out that nontrivial conservation laws exist for certain classes of equations which admit point symmetries. Moreover, we associate symmetries with conservation laws for special classes of these equations.
机译:我们获得了一类与土壤水分方程有关的(2 +1)非线性演化偏微分方程的所有非平凡的守恒律。还要指出的是,对于某些准许点对称的方程,存在非平凡的守恒定律。此外,对于这些方程的特殊类别,我们将对称性与守恒定律相关联。

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