[dune-pdelab] mapping of PowerGridFunctionSpace

[Oleh Krehel]

Dear PDELab developers,

I wrote with PDELab a solver for coupled multiple species diffusion-reaction.
Now I want to implement operator splitting for the same problem.
Diffusion step would be made with PDELab, reaction step - with other library.

So now for diffusion step I need a map from
GridOperator<PowerGridFunctionSpace<GFS,N,...>,...>::Traits::Domain
to
GridOperator<GFS,...>::Traits::Domain [N]

And for reaction step I need a map from
GridOperator<PowerGridFunctionSpace<GFS,N>,...>::Traits::Domain
to
FieldVector<double,N> [number of grid points]

Is there perhaps such a map already implemented, or where should I
look to see how to do it?

best regards,
Oleh Krehel