using variable coefficient based on edges in bilinear form

[Fotini Karakatsani]

Hello,

I would like to implement in FEniCS a nonlinear finite element method, for example one of its parts is of the form \sum_{facets F} a_F(u_h) (\nabla u_h, \nabla v_h) dS

where a_F(u_h) is a function defined on facets F and its values are real numbers which depend on some conditions for \nabla u_h.

Is that possible to implement this in FEniCS in python level?

Thank you in advance, Fotini

[Prof Garth Wells]

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