Journal Article 2 Riemannian optimization Allen–Cahn equation 1 Fisher–KPP equation 1 Grassmann manifold 1 Gross–Pitaevskii eigenvalue problem 1 Implicit methods 1 plus ... Kohn–Sham model 1 Manifold of fixed-rank matrices 1 Newton method 1 Numerical time integration 1 Preconditioning 1 Stiefel manifold 1 Stiff PDEs 1 Trust-region method 1 Variational problems 1 moins ...