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Old   March 27, 2010, 12:29
Default poisson equation
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does there exist analytical solution or approximation to poisson equation pde in 2 dimensions
ax^4+b*x^3+c*x^2+d*x+e is polinom
where BC are
where a,b,c,d,e are constants (real number)
Or if somebody knows where to look for this solution!
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Old   March 27, 2010, 12:51
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You can solve this equation (at least formally) in an analytical sense using the projection method, which is a generalization of the eigenfunction expansion method. You should be able to find this approach in any reasonably good book on PDEs.
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