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[Chong Luo <luo.chong@xxxxxxxxx>]

Let V_h be the finite element space of continuous piecewise linear functions defined on a mesh. Let \pi_h be the interpolation operator into V_h. Is it possible to include \pi_h in a UFL form file?

For example, if we have a bilinear form
b(q, v) = \int_{\Omega} q \pi_h [v \cdot u] dx
where q, u, v are all in V_h.  Is it possible to specify b(q,v) in a UFL form file?

Thank you!

Best,
Chong