Prolongation Structure of a Development Equation and Its Darboux Transformation Solution

This paper explores the third-order nonlinear coupled KdV equation utilizing prolongation structure theory and gauge transformation. By applying the prolongation structure method, we obtained an extended version of the equation. Starting from the Lax pairs of the equation, we successfully derived th...

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Main Authors: Lixiu Wang, Jihong Wang, Yangjie Jia
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/13/6/921
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author Lixiu Wang
Jihong Wang
Yangjie Jia
author_facet Lixiu Wang
Jihong Wang
Yangjie Jia
author_sort Lixiu Wang
collection DOAJ
description This paper explores the third-order nonlinear coupled KdV equation utilizing prolongation structure theory and gauge transformation. By applying the prolongation structure method, we obtained an extended version of the equation. Starting from the Lax pairs of the equation, we successfully derived the corresponding Darboux transformation and Bäcklund transformation for this equation, which are fundamental to our solving process. Subsequently, we constructed and calculated the recursive operator for this equation, providing an effective approach to tackling complex problems within this domain. These results are crucial for advancing our understanding of the underlying principles of soliton theory and their implications on related natural phenomena. Our findings not only enrich the theoretical framework but also offer practical tools for further research in nonlinear wave dynamics.
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institution Kabale University
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publishDate 2025-03-01
publisher MDPI AG
record_format Article
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spelling doaj-art-6ae6234e9a7b474c9f15c5d0e9ff8c722025-08-20T03:43:20ZengMDPI AGMathematics2227-73902025-03-0113692110.3390/math13060921Prolongation Structure of a Development Equation and Its Darboux Transformation SolutionLixiu Wang0Jihong Wang1Yangjie Jia2School of Mathematics and Statistics, Qinghai Normal University, Xining 810008, ChinaSchool of Mathematics and Statistics, Qinghai Normal University, Xining 810008, ChinaSchool of Mathematics and Statistics, Qinghai Normal University, Xining 810008, ChinaThis paper explores the third-order nonlinear coupled KdV equation utilizing prolongation structure theory and gauge transformation. By applying the prolongation structure method, we obtained an extended version of the equation. Starting from the Lax pairs of the equation, we successfully derived the corresponding Darboux transformation and Bäcklund transformation for this equation, which are fundamental to our solving process. Subsequently, we constructed and calculated the recursive operator for this equation, providing an effective approach to tackling complex problems within this domain. These results are crucial for advancing our understanding of the underlying principles of soliton theory and their implications on related natural phenomena. Our findings not only enrich the theoretical framework but also offer practical tools for further research in nonlinear wave dynamics.https://www.mdpi.com/2227-7390/13/6/921recursive operatorBäcklund transformationDarboux transformationLax pairprolongation structure
spellingShingle Lixiu Wang
Jihong Wang
Yangjie Jia
Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
Mathematics
recursive operator
Bäcklund transformation
Darboux transformation
Lax pair
prolongation structure
title Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
title_full Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
title_fullStr Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
title_full_unstemmed Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
title_short Prolongation Structure of a Development Equation and Its Darboux Transformation Solution
title_sort prolongation structure of a development equation and its darboux transformation solution
topic recursive operator
Bäcklund transformation
Darboux transformation
Lax pair
prolongation structure
url https://www.mdpi.com/2227-7390/13/6/921
work_keys_str_mv AT lixiuwang prolongationstructureofadevelopmentequationanditsdarbouxtransformationsolution
AT jihongwang prolongationstructureofadevelopmentequationanditsdarbouxtransformationsolution
AT yangjiejia prolongationstructureofadevelopmentequationanditsdarbouxtransformationsolution