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A linear-algebraic method to compute polynomial PDE conservation laws
Journal of Symbolic Computation ( IF 0.7 ) Pub Date : 2021-06-10 , DOI: 10.1016/j.jsc.2021.06.003
Michele Boreale , Luisa Collodi

We present a method to compute polynomial conservation laws for systems of partial differential equations (PDEs). The method only relies on linear algebraic computations and is complete, in the sense it can find a basis for all polynomial fluxes that yield conservation laws, up to a specified order of derivatives and degree. We compare our method to state-of-the-art algorithms based on the direct approach on a few PDE systems drawn from mathematical physics.



中文翻译:

一种计算多项式 PDE 守恒定律的线性代数方法

我们提出了一种计算偏微分方程 ( PDE )系统的多项式守恒定律的方法。该方法仅依赖于线性代数计算并且是完整的,从某种意义上说,它可以为所有产生守恒定律的多项式通量找到一个基础,直到指定的导数和阶数。我们将我们的方法与基于直接方法的最先进算法进行比较,这些算法是从数学物理学中提取的一些PDE系统上的直接方法。

更新日期:2021-06-21
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