50 citations · 234 across the 24 of their papers we have counts for
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Convergence rates for an inexact ADMM applied to separable convex optimization
William W. Hager, Hongchao Zhang
Convergence rates are established for an inexact accelerated alternating direction method of multipliers (I-ADMM) for general separable convex optimization with a linear constraint…
Convergence rate for a Gauss collocation method applied to constrained optimal control
William W. Hager, Jun Liu, Subhashree Mohapatra +2
A local convergence rate is established for a Gauss orthogonal collocation method applied to optimal control problems with control constraints. If the Hamiltonian possesses a stron…
Convergence Rate for a Radau hp Collocation Method Applied to Constrained Optimal Control
William W. Hager, Hongyan Hou, Subhashree Mohapatra +1
For unconstrained control problems, a local convergence rate is established for an -method based on collocation at the Radau quadrature points in each mesh interval of the disc…
Lebesgue Constants Arising in a Class of Collocation Methods
William W. Hager, Hongyan Hou, Anil V. Rao
Estimates are obtained for the Lebesgue constants associated with the Gauss quadrature points on augmented by the point and with the Radau quadrature points on eith…
Projection Algorithms for Non-Convex Minimization with Application to Sparse Principal Component Analysis
William W. Hager, Dzung T. Phan, Jia-Jie Zhu
We consider concave minimization problems over non-convex sets.Optimization problems with this structure arise in sparse principal component analysis. We analyze both a gradient pr…