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arXiv 1610.07342nlin.SI
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五点微分差分方程的分类

Classification of five-point differential-difference equations

R. N. Garifullin, R. I. Yamilov, D. Levi

摘要:

利用广义对称方法,对自治点变换下的自治五点微分差分方程的一个子类的可积方程进行了分类.这一子类包括诸如伊藤-成田-博戈亚夫连斯基和离散泽田-小寺方程等著名的例子。结果列表包含17个方程,其中一些似乎是新的。我们已经发现了非点变换与大多数所得方程之间的关系及其广义对称性。

英文摘要:

Using the generalized symmetry method, we carry out, up to autonomous point transformations, the classification of integrable equations of a subclass of the autonomous five-point differential-difference equations. This subclass includes such well-known examples as the Itoh-Narita-Bogoyavlensky and the discrete Sawada-Kotera equations. The resulting list contains 17 equations some of which seem to be new. We have found non-point transformations relating most of the resulting equations among themselves and their generalized symmetries.

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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