二阶Camassa Holm方程行波解的稳定性及性质(5)
发布时间:2021-06-06
发布时间:2021-06-06
二阶Camassa Holm方程行波解的稳定性及性质
x=(2k+1)t(k为整数),则x=(2k+π+c0
1)t(x,t)的零点.π+c0是φ0
d2φ
=0时,x=+2kt,π+c0dx3
2k=2n(n为整数)时,则x=π+4ntπ+c0
3为φ(x,t)的极大值点;0
2
k=2n-1(n为整数)时,π+(4n-2)π
3+ct(x,t)的极小值点.0为φ0
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镇江:江苏大学,2013:8-28.
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ashallowwaterequation[J].AnnalidellaScuolaNor以x,φ(x,t0)建立直角坐标系,c1>0,c2=0时,φ(x,t0
)图像见图2
.图2 c1>0,c2=0时,φ(x,t0
)Fig.2 Figureofφ(x,t0)atc1>0,c2=0
以上可以得到:
当c1>0,c2=0时,φ(x,t0
)零点、极值点是相间的,从而得到行波解φ(x,t)的零值、极值是相间的.
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