摘要
通过行波变换,利用微分方程定性理论与动力系统分支方法,根据Newell方程在不同参数形式下的相图,对相图中轨道的分析,利用椭圆积分,获得了Newell方程在不同参数下的孤立波等非线性行波解的参数表达式.
Through the traveling wave transformation,using the qualitative theory of differential equations and the dynamical system branching method,we obtain the phase diagram of the Newell equation in different parameter forms,and then by analyzing the orbit in the phase diagram,we finally obtain the nonlinear wave solution of the Newell equation under different parameters using the elliptical integral.
作者
刘红霞
韩青秀
廖玲蓝
伍芸
LIU Hong-xia;HAN Qing-xiu;LIAO Ling-lan;WU Yun(School of Mathematical science,Guizhou Normal University,Guiyang 550025,China)
出处
《合肥学院学报(综合版)》
2021年第5期24-29,共6页
Journal of Hefei University:Comprehensive ED
关键词
动力系统
Newell方程
孤立波
周期波
行波解
dynamical system
Newell equation
nonlinear waves
solitary wave:periodic wave