We consider optimal distributed and boundary control problems
for semilinear parabolic equations, where pointwise constraints
on the control and pointwise mixed control-state constraints of
bottleneck type are given. Our main result states the existence of regular Lagrange
multipliers for the state-constraints. Under natural
assumptions, we are able to show the existence of bounded
and measurable Lagrange multipliers. The method is based on results from the
theory of continuous linear programming problems.
Keywords :
parabolic equation, optimal control, pointwise state-constraint, bottleneck problem