Optimization and Optimal Control : Proceedings of a Conference Held at Oberwolfach March 16 22 1980 Quasi convex duality Some differentiability properties of quasiconvex functions n On optimality conditions for infinite programs Optimality conditions for discrete nonlinear norm approximation problems Feasible variable metric method for nonlinearly constrained problems A note on convergence proofs for Shor Khachian Methods A view of line searches II Approximation and decomposition of large scale problems On the existence of Lagrange multipliers in nonlinear programming in Banach spaces Convexifiable pseudoconvex and strictly pseudoconvex C2 functions Organization test and performance of optimization programs Hans method without solving QP Necessary optimality conditions for differential games with transition surfaces Regularization of Lagrange multipliers for time delay systems with fixed final state Numerical solution of linear and nonlinear parabolic control problems Survey on existence results in nonlinear optimal stochastic control of semimartingales Time minimal controllability in the view of optimization On the choice of minimization algorithms in parametric optimal control problems Strong duality weak duality and penalization for a state constrained parabolic control problem Finite difference approximations to constrained optimal control problems.