Preface; 1. Introduction; Part I. Preliminaries: 2. Basic Concepts; 3. Basic Analysis and Optimality Conditions; 4. Basic Linear Algebra; 5. Krylov Subspace Methods; Part II. Trust-Region Methods for Unconstrained Optimization: 6. Global Convergence of the Basic Algorithm; 7.The Trust-Region Subproblem; 8. Further Convergence Theory Issues; 9. Conditional Models; 10. Algorithmic Extensions; 11. Nonsmooth Problems; Part III. Trust-Region Methods for Constrained Optimization with Convex Constraints: 12. Projection Methods for Convex Constraints; 13. Barrier Methods for Inequality Constraints; Part IV. Trust-Region Mewthods for General Constained Optimization and Systems of Nonlinear Equations: 14. Penalty-Function Methods; 15. Sequential Quadratic Programming Methods; 16. Nonlinear Equations and Nonlinear Fitting; Part V. Final Considerations: Practicalities; Afterword; Appendix: A Summary of Assumptions; Annotated Bibliography; Subject and Notation Index; Author Index.