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arXiv 0812.3104math-phmath.MP
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具有多维守恒律空间的偏微分方程组的势系统的构造

Construction of potential systems for systems of PDEs with multi-dimensional spaces of conservation laws

N. M. Ivanova

摘要:

在本文中,我们考虑的过程中的推广建设的潜在系统的偏微分方程组与多维空间的守恒律。更确切地说,为建设潜在的系统的情况下,当维的空间的局部守恒定律是大于1,而不是只使用基础的保护法律,我们使用他们的任意线性组合是不等价的等价组的类系统或对称群的固定系统。看来,基本守恒律可以等价于对称群或等价变换群,反之亦然,在这个意义上,守恒律的独立线性组合的数量可以大于守恒律空间的维数。第一种可能性导致不必要的,往往是繁琐的,等效系统的调查,第二个可能会错过大量的不等效的潜在系统。所有这些可能性的例子。

英文摘要:

In this paper we consider generalization of procedure of construction of potential systems for systems of partial differential equations with multidimensional spaces of conservation laws. More precisely, for construction of potential systems in cases when dimension of the space of local conservation laws is greater than one, instead of using only basis conservation laws we use their arbitrary linear combinations being inequivalent with respect to equivalence group of the class of systems or symmetry group of the fixed system. It appears that the basis conservation laws can be equivalent with respect to groups of symmetry or equivalence transformations, or vice versa, the number of independent in this sense linear combinations of conservation laws can be grater than the dimension of the space of conservation laws. The first possibility leads to an unnecessary, often cumbersome, investigation of equivalent systems, the second one makes possible missing a great number of inequivalent potential systems. Examples of all these possibilities are 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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