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含Laplace算子的拟线性方程组的前进波解
Solution of progressing waves in the Quasi-linear system with Laplace’s operator
【摘要】 W.F.Ames在[2]中研究了流体力学的动量方程组的显式前进波解。本文讨论n维空间拟线性偏微分方程组 (?)ui/(?)t+(sum from j=1 to nuj)(ui/xj)=v(sum from j=1 to n)(2ui)/xj2), i=1, …, n的情形。令 ui=ψxi以及ψ=F(ω), ω=t+sum from j=1 to n λj (xj)将偏微分方程组化为常微分方程组求解,并得出了有关常数c,ci取不同符号时解ui的不同表达式。
【Abstract】 In this paper the Quasi--linear system on n-dimensional space (ui/t+(sum from j=1 to nuj)(ui/xj)=v(sum from j=1 to n)()2ui)/xj2), i=1, …, nis considered.Let ui=ψxi, and pose the boundary condition ψt=ψxj =ψxjxj = 0 (j= 1,… , n)as xi = 0(i= 1, …,n), the solution of the system is obtained in the form= F (ω), ω=t+sum from j=1 to n λj (xj)The signs of the constants o, ci appearing in the solution have been discussed.
- 【文献出处】 华东师范大学学报(自然科学版) ,Journal of East China Normal University(Natural Science) , 编辑部邮箱 ,1982年03期
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