TY - JOUR AU - Hintermüller, Michael AU - Kopacka, Ian AU - Volkwein, Stefan TI - Mesh-independence and preconditioning for solving parabolic control problems with mixed control-state constraints JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2009 SP - 626 EP - 652 VL - 15 IS - 3 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv:2008042/ DO - 10.1051/cocv:2008042 LA - en ID - COCV_2009__15_3_626_0 ER -