期刊
INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
卷 23, 期 1, 页码 123-133出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/ijnsns-2020-0214
关键词
(1+1)-dimensional integrable equations; Hirota N-soliton condition; N-soliton solution
资金
- NSFC [11975145, 11972291]
This paper analyzes N-soliton solutions and explores the Hirota N-soliton conditions for scalar (1 + 1)-dimensional equations within the Hirota bilinear formulation. An algorithm is proposed to verify the Hirota conditions by factoring out common factors in N wave vectors of the Hirota function and comparing degrees of involved polynomials. Applications to a class of generalized KdV equations and a class of generalized higher-order KdV equations are made, with proofs of the existence of N-soliton solutions provided for all equations in the two classes.
We analyze N-soliton solutions and explore the Hirota N-soliton conditions for scalar (1 + 1)-dimensional equations, within the Hirota bilinear formulation. An algorithm to verify the Hirota conditions is proposed by factoring out common factors out of the Hirota function in N wave vectors and comparing degrees of the involved polynomials containing the common factors. Applications to a class of generalized KdV equations and a class of generalized higher-order KdV equations are made, together with all proofs of the existence of N-soliton solutions to all equations in two classes.
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