TY - JOUR A1 - Pickenhain, Sabine T1 - Duality theory for state-constrained control problems governed by a first order PDE system JF - Control and Cybernetics Y1 - 2002 VL - 31 IS - 3 SP - 833 EP - 845 ER - TY - CHAP A1 - Pickenhain, Sabine A1 - Wagner, M. ED - Grötschel, Martin T1 - Optimal Control Problems with a First Order PDE System - Necessary and Sufficient Optimality Conditions T2 - Online optimization of large scale systems Y1 - 2001 SN - 3-540-42459-8 SP - 159 EP - 172 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Pickenhain, Sabine ED - Floudas, Christodoulos A. ED - Pardalos, Panos M. T1 - Duality in optimal control with first order differential equations T2 - Encyclopedia of optimization, Bd. 1 Y1 - 2001 SN - 0-7923-7029-5 SP - 472 EP - 477 PB - Kluwer CY - Dordrecht [u.a.] ER - TY - JOUR A1 - Malanowski, Kazimierz A1 - Maurer, Helmut A1 - Pickenhain, Sabine T1 - Second-order sufficient conditions for state-constrained optimal control problems Y1 - 2004 ER - TY - CHAP A1 - Pickenhain, Sabine T1 - Rough stability of solutions to nonconvex optimization problems Y1 - 2000 ER - TY - JOUR A1 - Pickenhain, Sabine A1 - Wagner, M. T1 - Pontryagin principle for state-constrained control problems governed by a first-order PDE system Y1 - 2000 ER - TY - CHAP A1 - Pickenhain, Sabine A1 - Wagner, M. ED - Ioffe, Alexander T1 - Critical points in relaxed deposit problems T2 - Calculus of variations and optimal control, Technion 1998, proceedings of the International Conference on the Calculus of Variations and Related Topics, 25 - 31 March, 1998 Y1 - 2000 SN - 0-8493-0605-1 SP - 217 EP - 236 PB - Chapman & Hall/CRC CY - Boca Raton, Fla. [u.a.] ER - TY - JOUR A1 - Pickenhain, Sabine A1 - Kripfganz, A. T1 - In celebration of Prof. Dr. Rolf Klötzler 65th birthday Y1 - 1996 ER - TY - JOUR A1 - Pickenhain, Sabine T1 - A pointwise maximum principle in optimal control with multiple integrals Y1 - 1996 ER - TY - JOUR A1 - Maurer, Helmut A1 - Pickenhain, Sabine T1 - Second-order sufficient conditions for control problems with mixed control-state constraints Y1 - 1995 ER -