This parcours considers optimization problems constrained by a authentique PDE called the state equation, which allows to express the state as function of the control (the decision variable). We discuss the well-posedness of the control to state mapping, the existence of dénouement and the first-order optimality Exigence in the setting https://sectordirectory.com/listings276161/5-faits-simples-sur-la-seo-off-page-d%C3%A9crite