Partial dérivates

*To*: mathgroup at smc.vnet.net*Subject*: [mg43875] Partial dérivates*From*: "Naima Khelfaoui" <khelfaou at ese-metz.fr>*Date*: Fri, 10 Oct 2003 03:05:44 -0400 (EDT)*Organization*: CIRIL, Nancy, France*Sender*: owner-wri-mathgroup at wolfram.com

Hello, I try to solve a patial dérivates equation with two variables but I could not under mathématica, my system is : (a1+b1.exp(-x^2/c1))dE(x, t)/dx + a2.E(x, t).(d^2E(x, t)/dx^2).dE(x, t)/dt+ a3.dE(x, t)/dx.d^2E(x, t)/dt^2+ (a4+b4.exp(-x^2/c1))E(x, t).d^2E(x, t)/dx^2+ a5+b5.exp(-x^2/c1))dE(x, t)/dx dE(x, t)/dt+ a6.exp(-x^2/c1))E(x, t)=0 such as, a1, b1, c1, a2, a3, a4, b4, a5, b5, a6 ; constants. I thank you for giving me at least an idea for the solution of this very complex equation. naïma