50 citations · 234 across the 24 of their papers we have counts for
25 papers
Extension of Switch Point Algorithm to Boundary-Value Problems
William W. Hager
In an earlier paper (https://doi.org/10.1137/21M1393315), the Switch Point Algorithm was developed for solving optimal control problems whose solutions are either singular or bang-…
A Gradient-Based Implementation of the Polyhedral Active Set Algorithm
William W. Hager, Hongchao Zhang
The Polyhedral Active Set Algorithm (PASA) is designed to optimize a general nonlinear function over a polyhedron. Phase one of the algorithm is a nonmonotone gradient projection a…
NPASA: An algorithm for nonlinear programming -- Motivation and Global Convergence
James Diffenderfer, William W. Hager
In this paper, we present a two phase method for solving nonlinear programming problems called Nonlinear Polyhedral Active Set Algorithm (NPASA) that has global and local convergen…
NPASA: An algorithm for nonlinear programming -- Local Convergence
James Diffenderfer, William W. Hager
In this paper, we provide local convergence analysis for the two phase Nonlinear Polyhedral Active Set Algorithm (NPASA) designed to solve nonlinear programs. In particular, we est…
The Switch Point Algorithm
Mahya Aghaee, William W. Hager
The Switch Point Algorithm is a new approach for solving optimal control problems whose solutions are either singular or bang-bang or both singular and bang-bang, and which possess…
A Newton-Type Active Set Method for Nonlinear Optimization with Polyhedral Constraints
William W. Hager, Davoud Ataee Tarzanagh
A Newton-type active set algorithm for large-scale minimization subject to polyhedral constraints is proposed. The algorithm consists of a gradient projection step, a second-order…