Question: Help to solve a system of PDEs

Hello,

I would like to solve this kind of system with any numeric method.


With any kind of IBCs.

 

My code :

Maple says : Error, (in pdsolve/numeric/plot) unable to compute solution for t<HFloat(0.0):
matrix is singular
Error, (in pdsolve/numeric/plot) unable to compute solution for t>HFloat(0.0):
matrix is singular

Any idea why ? Any help ?

Thank you

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