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arXiv math-ph/0108023math-phmath.MP
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偏微分方程守恒律的直接构造法。第一部分:守恒定律分类的例子

Direct construction method for conservation laws of partial differential equations. Part I: Examples of conservation law classifications

Stephen C. Anco, George Bluman

摘要:

本文给出了一种求具有任意多个自变量和因变量的偏微分方程局部守恒律的有效算法。该方法不需要使用或存在一个变分原理,并减少了守恒律的计算,以解决一个系统的线性确定方程类似于寻找对称性。导出了一个显式构造公式,该公式对确定系统的每一个解都给出了一个守恒定律。在第一篇论文(第一部分)中,我们用非线性波方程的例子来说明这种方法。得到了这些方程的守恒律的分类结果。在第二篇论文(第二部分),一般治疗的方法。

英文摘要:

An effective algorithmic method is presented for finding the local conservation laws for partial differential equations with any number of independent and dependent variables. The method does not require the use or existence of a variational principle and reduces the calculation of conservation laws to solving a system of linear determining equations similar to that for finding symmetries. An explicit construction formula is derived which yields a conservation law for each solution of the determining system. In the first of two papers (Part I), examples of nonlinear wave equations are used to exhibit the method. Classification results for conservation laws of these equations are obtained. In a second paper (Part II), a general treatment of the method is given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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