Combination of an adaptive multilevel SQP method and a space-time adaptive PDAE solver for optimal control problems. - Debora Clever; Jens Lang 001; Stefan Ulbrich; J. Carsten Ziems (ICCS, 2010)

Adaptive Multilevel Inexact SQP Methods for PDE-Constrained Optimization. - J. Carsten Ziems; Stefan Ulbrich (SIAM J. Optim., 2011)

Generalized Multilevel SQP-methods for PDAE-constrained Optimization Based on Space-Time Adaptive PDAE Solvers. - Debora Clever; Jens Lang 001; Stefan Ulbrich; J. Carsten Ziems (Constrained Optimization and Optimal Control for Partial Differential Equations, 2012)

Adaptive Multilevel Inexact SQP-Methods for PDE-Constrained Optimization with Control Constraints. - J. Carsten Ziems (SIAM J. Optim., 2013)