Hi everyone, I am trying to solve a nonlinear problem in a mixed space. My solution doesn’t converge due to the presence of tan(ksi) in the integrand4. I want to know if we can somehow restrict ksi to ignore the values pi/2. If yes, how can we do this? e.g. if we can substitute ksi by arctan(z) or …

Nowhere in the post does it state that you can do pk_space(0), pk_space(1). These should be fe.FunctionAssigner(pk_space, [phiP_0.function_space(), ksi_0.function_space()])

Restricting trial function to converge the solution

variational formulation

dokken April 13, 2023, 2:28pm 4

Im not sure what you mean by this.

You can have a look at:

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Restricting trial function to converge the solution

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