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arXiv 2003.02025nlin.SI
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具有非标准对称结构的正方形格上修正的可积离散方程组

Modified series of integrable discrete equations on a square lattice with a non-standard symmetry structure

R. N. Garifullin, R. I. Yamilov

摘要:

在作者最近的一篇论文[TMP,200:1(2019),966- 984]中,构造了一系列具有非标准广义对称结构的正方形格上的可积离散自治方程。我们通过使用离散非点变换来建立修正级数。我们使用不可逆的线性化变换和非点变换可逆的离散方程的解决方案。结果,我们得到了几个新的离散方程的例子,以及它们的广义对称和主对称。构造的广义对称给出了五点和七点微分差分方程及其主对称的新的可积例子。在离散方程的情况下,利用守恒律构造不可逆线性化变换的方法显然是第一次被考虑。

英文摘要:

In a recent paper [TMP, 200:1 (2019), 966--984] by the authors, a series of integrable discrete autonomous equations on a square lattice with a non-standard structure of generalized symmetries is constructed. We build modified series by using discrete non-point transformations. We use both non-invertible linearizable transformations and non-point transformations invertible on solutions of the discrete equation. As a result, we get several series of new examples of discrete equations along with their generalized symmetries and master symmetries. The generalized symmetries constructed give new integrable examples of five- and seven-point differential-difference equations together with their master symmetries. In the case of discrete equations, the method of constructing non-invertible linearizable transformations by using conservation laws is considered, apparently, for the first time.

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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