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An Active Set Algorithm for Nonlinear Optimization with Polyhedral Constraints

A polyhedral active set algorithm PASA is developed for solving a nonlinear optimization problem whose feasible set is a polyhedron. Phase one of the algorithm is the gradient projection method, while phase two is any algorithm for solving a linearly constrained optimization problem. Rules are provided for branching between the two phases. Global convergence to a stationary point is established, while asymptotically PASA performs only phase two when either a nondegeneracy assumption holds, or the active constraints are linearly independent and a strong second-order sufficient optimality condition holds.

preprint2016arXivOpen access
William W. HagerHongchao Zhang
math.OC
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William W. HagerHongchao Zhang

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