@incollection{PickenhainWagner, author = {Pickenhain, Sabine and Wagner, M.}, title = {Critical points in relaxed deposit problems}, series = {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}, booktitle = {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}, editor = {Ioffe, Alexander}, publisher = {Chapman \& Hall/CRC}, address = {Boca Raton, Fla. [u.a.]}, isbn = {0-8493-0605-1}, pages = {217 -- 236}, language = {en} } @article{PickenhainKripfganz, author = {Pickenhain, Sabine and Kripfganz, A.}, title = {In celebration of Prof. Dr. Rolf Kl{\"o}tzler 65th birthday}, language = {en} } @article{Pickenhain, author = {Pickenhain, Sabine}, title = {A pointwise maximum principle in optimal control with multiple integrals}, language = {en} } @article{MaurerPickenhain, author = {Maurer, Helmut and Pickenhain, Sabine}, title = {Second-order sufficient conditions for control problems with mixed control-state constraints}, language = {en} } @incollection{PickenhainKloetzler, author = {Pickenhain, Sabine and Kl{\"o}tzler, Rolf}, title = {Pontryagin's maximum principle for multidimensional control problems}, series = {Optimal control, Conference on Optimal Control, held at the Mathematisches Forschungsinstitut of the University of Freiburg}, booktitle = {Optimal control, Conference on Optimal Control, held at the Mathematisches Forschungsinstitut of the University of Freiburg}, editor = {Bulirsch, Roland}, publisher = {Birkh{\"a}user}, address = {Basel [u.a.]}, isbn = {0-8176-2887-8}, pages = {21 -- 30}, language = {en} } @incollection{Pickenhain, author = {Pickenhain, Sabine}, title = {W{\"a}lzlagerrollen - L{\"o}cher - Orbiformen}, series = {Heureka heute : Kostproben praxiswirksamer Mathematik}, booktitle = {Heureka heute : Kostproben praxiswirksamer Mathematik}, editor = {Deweß, G{\"u}nter}, publisher = {Teubner}, address = {Stuttgart [u.a.]}, isbn = {3-8154-2071-7}, pages = {122 -- 133}, language = {de} } @article{PickenhainWagner, author = {Pickenhain, Sabine and Wagner, Marcus}, title = {Piecewise Continuous Controls in Dieudonn{\´e}-Rashevsky Type Problems}, language = {en} } @incollection{PickenhainMalanowskiMaurer, author = {Pickenhain, Sabine and Malanowski, Kazimierz and Maurer, Helmut}, title = {Second order sufficient conditions for optimal control subject to first order state constraints}, series = {Control and boundary analysis}, booktitle = {Control and boundary analysis}, editor = {Cagnol, John}, publisher = {Chapman \& Hall/CRC}, address = {Boca Raton, Fla}, isbn = {978-1-574-44594-7}, pages = {293 -- 304}, language = {en} } @incollection{PickenhainLykina, author = {Pickenhain, Sabine and Lykina, Valeriya}, title = {Sufficiency conditions for infinite horizon optimal control problems}, language = {en} } @article{PickenhainWagner, author = {Pickenhain, Sabine and Wagner, Marcus}, title = {Minimizing sequences in class-qualified deposit problems}, language = {en} }