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arXiv 1401.0982nlin.SI
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BBurgers方程通过剩余对称局部化的acklund变换

Backlund transformations for Burgers Equation via localization of residual symmetries

Xi-zhong Liu, Jun Yu, Bo Ren

摘要:

本文得到了Burgers方程截断Painlevé展开式的非局部剩余对称性。为了使剩余对称性局部化,我们引入新的变量,将原Burgers方程推广到一个新的系统中。利用李第一定理,得到了局部剩余对称性的有限变换。更重要的是,我们还局部化了多重剩余对称的线性叠加,找到了相应的有限变换。有趣的是,第n个BBurgers方程的acklund变换可以用行列式简洁地表示.

英文摘要:

In this paper, we obtained the non-local residual symmetry related to truncated Painlevé expansion of Burgers equation. In order to localize the residual symmetry, we introduced new variables to prolong the original Burgers equation into a new system. By using Lie's first theorem, we got the finite transformation for the localized residual symmetry. More importantly, we also localized the linear superposition of multiple residual symmetries to find the corresponding finite transformations. It is interesting to find that the nth Backlund transformation for Burgers equation can be expressed by determinants in a compact way.

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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