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Numerically solving PDE system near singularity

Posted 9 years ago

Hello, I'm trying to solve a PDE system near r=0, which is a singularity (please see attached file) I chose to solve in the interval {r, \[Epsilon], R}, where \[Epsilon] is a positive cutoff. The solution is very sensitive to changes in \[Epsilon], and for small enough values, the solution does not meet the boundary conditions.

Is there a better way to address this issue?

Thank you

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POSTED BY: Shimon Rubin
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