Content: Front Matter....Pages i-iii Quelques Aspects Geometriques des Processus Optimaux....Pages 1-74 Quelques Problemes de Mesurabilite Lies a la Theorie des Commandes....Pages 75-84 Existence Theorems for Lagrange and Pontryagin Problems of The Calculus of Variations and Optimal Control. More Dimensional Extensions in Sobolev Spaces....Pages 85-176 Optimal Control as Programming in Infinite Dimensional Spaces....Pages 177-192 The range of integrals of a certain class of vector-valued functions....Pages 195-202 Weak Topology and Calculus of Variations....Pages 205-237 Problems About the Set of Attainability....Pages 239-369