template<class FES>
Rodin::Models::Hilbert::H1a class

Hilbertian $ H^1 $ extension-regularization procedure with a regularization length-scale parameter.

\[ a(u, v) := \alpha^2 \int_{\mathbb{R}^d} \nabla u : \nabla v \ dx + \int_{\mathbb{R}^d} u \cdot v \ dx \]