Implementation of a simple surface Croizeix Raviart discretization for vector-valued PDEs in the tangential plane. See
C. Mehlmann Analysis of the Crouzeix-Raviart Surface Finite Element Method for vector-valued Laplacians https://doi.org/10.48550/arXiv.2312.16541
for a possible usecase.
Questions? Contact me: thomas.richter@ovgu.de