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## [Getfem-users] Jump conditions on a surface.

 From: Ronan Perrussel Subject: [Getfem-users] Jump conditions on a surface. Date: Tue, 15 May 2007 09:16:29 +0200 User-agent: Thunderbird 1.5.0.10 (X11/20070306)

Dear getfem experts,


I would like to solve a (relatively simple) problem with jump conditions on an surface S.


More precisely, if O denotes the domain, the variational form is the following :
\int_O \sigma \grad u \grad v dx + \int_S \alpha [u][v] ds = <source terms>
where [u] is the jump of u over S.

Is there some elegant solution to implement this?

If I have to use the level set strategy (NB: the surface is static and I can easily include it in the mesh), how can I translate the \int_S \alpha [u][v] ds integration?

I will be glad to supply you further details.