Boundary condition of diffusion equation in a sphere

*To*: mathgroup at smc.vnet.net*Subject*: [mg126836] Boundary condition of diffusion equation in a sphere*From*: diracdelta <repeatcloud at gmail.com>*Date*: Tue, 12 Jun 2012 02:57:54 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Hi there! I am solving a diffusion equation in sphere, can anybody tell me how to write this boundary condition in mathematica c[x,0]=1, 0<x<1 I tried c[x,t]/.0<x<1 and c[x/;0<x<1,t] but they don't work out. Thank you so much if you could shed some light on it