班傑明-小野方程

班傑明-小野方程（Benjamin-Ono equation）是一個非線性偏微分方程：^[1].

${\displaystyle u_{tt}+\alpha *(u^{2})_{xx}-\beta *u_{xxxx}=0}$

解析解

${\displaystyle u(x,t)=(1/2)*(-_{C}3^{2}+4*\beta *_{C}2^{4})/_{C}2^{2}+6*\beta *_{C}2^{2}*csch(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=(1/2)*(-_{C}3^{2}+4*\beta *_{C}2^{4})/_{C}2^{2}-6*\beta *_{C}2^{2}*sech(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(4*\beta *_{C}2^{4}+_{C}3^{2})/_{C}2^{2}+6*\beta *_{C}2^{2}*csc(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(4*\beta *_{C}2^{4}+_{C}3^{2})/_{C}2^{2}+6*\beta *_{C}2^{2}*sec(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=(1/2)*(8*\beta *_{C}2^{4}-_{C}3^{2})/_{C}2^{2}+6*b\eta *_{C}2^{2}*cot(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=(1/2)*(8*\beta *_{C}2^{4}-_{C}3^{2})/_{C}2^{2}+6*b\eta *_{C}2^{2}*tan(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(8*\beta *_{C}2^{4}+_{C}3^{2})/_{C}2^{2}+6*\beta *_{C}2^{2}*coth(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(8*\beta *_{C}2^{4}+_{C}3^{2})/_{C}2^{2}+6*\beta *_{C}2^{2}*tanh(_{C}1+_{C}2*x+_{C}3*t)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(-8*\beta *_{C}3^{4}+4*\beta *_{C}3^{4}*_{C}1^{2}+_{C}4^{2})/_{C}3^{2}+(-6*\beta *_{C}3^{2}+6*\beta *_{C}3^{2}*_{C}1^{2})*JacobiND(_{C}2+_{C}3*x+_{C}4*t,_{C}1)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(-8*\beta *_{C}3^{4}+4*\beta *_{C}3^{4}*_{C}1^{2}+_{C}4^{2})/_{C}3^{2}-6*\beta *_{C}3^{2}*JacobiDN(_{C}2+_{C}3*x+_{C}4*t,_{C}1)^{2}}$

${\displaystyle u(x,t)=(1/2)*(-4*\beta *_{C}3^{4}+8*\beta *_{C}3^{4}*_{C}1^{2}-_{C}4^{2})/_{C}3^{2}+(6*\beta *_{C}3^{2}-6*\beta *_{C}3^{2}*_{C}1^{2})*JacobiNC(_{C}2+_{C}3*x+_{C}4*t,_{C}1)^{2}}$

${\displaystyle u(x,t)=-(1/2)*(4*\beta *_{C}3^{4}*_{C}1^{2}+_{C}4^{2}+4*\beta *_{C}3^{4})/_{C}3^{2}+6*\beta *_{C}3^{2}*_{C}1^{2}*JacobiSN(_{C}2+_{C}3*x+_{C}4*t,_{C}1)^{2}}$

${\displaystyle u(x,t)=(1/2)*(-4*\beta *_{C}3^{4}+8*\beta *_{C}3^{4}*_{C}1^{2}-_{C}4^{2})/_{C}3^{2}-6*\beta *_{C}3^{2}*_{C}1^{2}*JacobiCN(_{C}2+_{C}3*x+_{C}4*t,_{C}1)^{2}}$

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行波圖

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot

Benjamin-Ono equation traveling wave plot