Achab, FatmaBoukouba, Chayma2022-03-142022-03-142020http//localhost:8080/jspui/handle/123456789/2050The aim of this memory is to study optimal control problem of some linear distributed systems with incomplete data. The no-regret control method seems to be the best-adapted method to solve it. Also, the averaged control is used to control systems depending on unknown parameter. The no-regret control limit of the sequence of low-regret controls will be characterized by an optimality system.frOptimal control, incomplete data, no-regret control, low-regret control, averaged control, average no-regret control, electromagnetic wave equationContrôle optimal, donnée incomplète, contrôle sans regret, contrôle à moindre regret, contrôle moyenne, contrôle sans regret moyenne, équation des ondes électromagnétiquesالتحكم األمثل، معطيات غير مكتملة، التحكم دون ندم، التحكم المنخفض الندم، التحكم المتوسط، التحكم المتوسط دون ندم، معادلة األمواج الكهرومغناطيسيةThesis