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arXiv math-ph/0511035math-phmath.MPnlin.SI
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对称性与守恒定律之间的联系

Connections Between Symmetries and Conservation Laws

George Bluman

摘要:

本文介绍了最近的工作之间的联系对称性和守恒定律。在回顾了Noether定理及其局限性之后,我们提出了直接构造法,以说明如何直接找到任何给定微分方程组的守恒律。这种方法产生守恒律的乘子以及相应的守恒密度的积分公式。对称性(离散的或连续的)对守恒定律的作用产生守恒律。守恒定律产生非局部相关的系统,反过来,可以产生非局部对称性,此外还可以用于其他数学方法的应用。从它被承认的对称性或守恒律的乘子,人们可以确定一个给定的微分方程组是否可以通过可逆变换线性化。

英文摘要:

This paper presents recent work on connections between symmetries and conservation laws. After reviewing Noether's theorem and its limitations, we present the Direct Construction Method to show how to find directly the conservation laws for any given system of differential equations. This method yields the multipliers for conservation laws as well as an integral formula for corresponding conserved densities. The action of a symmetry (discrete or continuous) on a conservation law yields conservation laws. Conservation laws yield non-locally related systems that, in turn, can yield nonlocal symmetries and in addition be useful for the application of other mathematical methods. From its admitted symmetries or multipliers for conservation laws, one can determine whether or not a given system of differential equations can be linearized by an invertible transformation.

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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