nlpdegm

nlpdegm provides MATLAB reference implementations for primal-dual extragradient methods applied to nonlinear, nonsmooth PDE-constrained optimization. It accompanies the research article by Christian Clason and Tuomo Valkonen.

The repository contains finite-element setup code and implementations for fitting, fitting, and state-constrained problems. It is paper-specific research code rather than a general-purpose optimization package.