I. About the XIth International Symposium on Mathematical Programming.- Program and Organizing Committee.- Welcoming Addresses.- List of Sponsors.- The Fulkerson Prize and the Dantzig Prize 1982.- II. Mathematical Programming: The State of the Art - Bonn 1982.- Predictor-Corrector and Simplicial Methods for Approximating Fixed Points and Zero Points of Nonlinear Mappings.- Polyhedral Theory and Commutative Algebra.- Reminiscences About the Origins of Linear Programming.- Penalty Functions.- Applications of the FKG Inequality and its Relatives.- Semi-Infinite Programming and Applications.- Applications of Matroid Theory.- Recent Results in the Theory of Machine Scheduling.- Submodular Functions and Convexity.- Recent developments in Algorithms and Software for Trust Region Methods.- Variable Metric Methods for Constrained Optimization.- Polyhedral Combinatorics.- Generalized Equations.- Generalized Subgradients in Mathematical Programming.- Nondegeneracy Problems in Cooperative Game Theory.- Conic Methods for Unconstrained Minimization and Tensor Methods for Nonlinear Equations.- Min-Max Results in Combinatorial Optimization.- Generalized Gradient Methods of Non-Differentiable Optimization Employing Space Dilatation Operations.- The Problem of the Average Speed of the Simplex Method.- Solution of Large Linear Systems of Equations by Conjugate Gradient Type Methods.- Stochastic Programming: Solution Techniques and Approximation Schemes.- III. Scientific Program.- IV. List of Authors.