degenerate parabolic PDE and pdepe

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Moritz
Moritz 2013-1-29
Hi,
i hope someone can help me on that topic:
Given a 1 dimensional problem pdepe is what i considered to be the best choice. But my PDE changes at a certain point from second order to first order type.
that would mean the flux term consists of two parts:
f=r+b*du/dx
and b will become zero at a certain solution u
can pdepe handle that ?
Thank you

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