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Multiple Darboux-Bäcklund transformations via truncated Painlevé expansion and Lie point symmetry approach |
Shuai-Jun Liu(刘帅君)1, Xiao-Yan Tang(唐晓艳)1, Sen-Yue Lou(楼森岳)1,2 |
1 Shanghai Key Laboratory of Trustworthy Computing, East China Normal University, Shanghai 200062, China;
2 Ningbo Collabrative Innovation Center of Nonlinear Harzard System of Ocean and Atmosphere and Faculty of Science, Ningbo University, Ningbo 315211, China |
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Abstract For a given truncated Painlevé expansion of an arbitrary nonlinear Painlevé integrable system, the residue with respect to the singularity manifold is known as a nonlocal symmetry, called the residual symmetry, which is proved to be localized to Lie point symmetries for suitable prolonged systems. Taking the Korteweg-de Vries equation as an example, the n-th binary Darboux-Bäcklund transformation is re-obtained by the Lie point symmetry approach accompanied by the localization of the n-fold residual symmetries.
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Received: 13 February 2018
Revised: 16 March 2018
Accepted manuscript online:
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PACS:
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02.30.Ik
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(Integrable systems)
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05.45.Yv
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(Solitons)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.11675055,11175092,and 11205092),the Program from Shanghai Knowledge Service Platform for Trustworthy Internet of Things (Grant No.ZF1213),and K C Wong Magna Fund in Ningbo University. |
Corresponding Authors:
Xiao-Yan Tang
E-mail: xytang@sist.ecnu.edu.cn
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Cite this article:
Shuai-Jun Liu(刘帅君), Xiao-Yan Tang(唐晓艳), Sen-Yue Lou(楼森岳) Multiple Darboux-Bäcklund transformations via truncated Painlevé expansion and Lie point symmetry approach 2018 Chin. Phys. B 27 060201
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