TY - GEN A1 - Meyer, Christian A1 - Rösch, Arnd T1 - L^\\infty-Estimates for Approximated Optimal Control Problems N2 - An optimal control problem for a 2-d elliptic equation is investigated with pointwise control constraints. This paper is concerned with discretization of the control by piecewise linear functions. The state and the adjoint state are discretized by linear finite elements. Approximation of order h in the L1-norm is proved in the main result. Y1 - 2004 UR - https://opus4.kobv.de/opus4-matheon/frontdoor/index/index/docId/159 UR - https://nbn-resolving.org/urn:nbn:de:0296-matheon-1592 ER -