William W. Hager

103 papers B 2C 1Journal 90Unranked 9
YearRankTypeTitle / Venue / Authors
2026 J jnl
Integral form of Legendre-Gauss-Lobatto collocation for optimal control.
J. Frankl. Inst.
Gabriela Abadia-Doyle, William W. Hager, Anil V. Rao
2025 J jnl
Second-Order Sufficient Optimality Conditions in the Calculus of Variations.
J. Optim. Theory Appl.
William W. Hager
2024 J jnl
On the stationarity for nonlinear optimization problems with polyhedral constraints.
Math. Program.
Daniela di Serafino, William W. Hager, Gerardo Toraldo, Marco Viola
2023 J jnl
Algorithm 1035: A Gradient-based Implementation of the Polyhedral Active Set Algorithm.
ACM Trans. Math. Softw.
William W. Hager, Hongchao Zhang
2023 J jnl
Extension of Switch Point Algorithm to Boundary-Value Problems.
CoRR
William W. Hager
2023 J jnl
Extension of switch point algorithm to boundary-value problems.
Comput. Optim. Appl.
William W. Hager
2023 J jnl
Preface to Asen L. Dontchev Memorial Special Issue.
Comput. Optim. Appl.
William W. Hager, R. Tyrrell Rockafellar, Vladimir M. Veliov
2022 J jnl
An inexact accelerated stochastic ADMM for separable convex optimization.
Comput. Optim. Appl.
Jianchao Bai, William W. Hager, Hongchao Zhang
2021 J jnl
Modified Legendre-Gauss-Radau Collocation Method for Optimal Control Problems with Nonsmooth Solutions.
J. Optim. Theory Appl.
Joseph D. Eide, William W. Hager, Anil V. Rao
2021 J jnl
The Switch Point Algorithm.
SIAM J. Control. Optim.
Mahya Aghaee, William W. Hager
2020 J jnl
Algorithm 1003: Mongoose, a Graph Coarsening and Partitioning Library.
ACM Trans. Math. Softw.
Timothy A. Davis, William W. Hager, Scott P. Kolodziej, Sencer Nuri Yeralan
2020 J jnl
Convergence rates for an inexact ADMM applied to separable convex optimization.
Comput. Optim. Appl.
William W. Hager, Hongchao Zhang
2020 J jnl
Convergence rates for an inexact ADMM applied to separable convex optimization.
CoRR
William W. Hager, Hongchao Zhang
2019 J jnl
Bounds for integration matrices that arise in Gauss and Radau collocation.
Comput. Optim. Appl.
Wanchun Chen, Wenhao Du, William W. Hager, Liang Yang
2019 J jnl
Convergence rate for a Radau hp collocation method applied to constrained optimal control.
Comput. Optim. Appl.
William W. Hager, Hongyan Hou, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang
2019 J jnl
Correction to: Convergence rate for a Radau hp collocation method applied to constrained optimal control.
Comput. Optim. Appl.
William W. Hager, Hongyan Hou, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang
2019 J jnl
Inexact alternating direction methods of multipliers for separable convex optimization.
Comput. Optim. Appl.
William W. Hager, Hongchao Zhang
2018 J jnl
A multilevel bilinear programming algorithm for the vertex separator problem.
Comput. Optim. Appl.
William W. Hager, James T. Hungerford, Ilya Safro
2018 — conf
A pseudospectral method for optimal control based on collocation at the Gauss points.
CDC
William W. Hager, Jun Liu, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang
2018 J jnl
Adaptive Mesh Refinement Method for Optimal Control Using Decay Rates of Legendre Polynomial Coefficients.
IEEE Trans. Control. Syst. Technol.
Fengjin Liu, William W. Hager, Anil V. Rao
2018 J jnl
Convergence Rate for a Gauss Collocation Method Applied to Constrained Optimal Control.
SIAM J. Control. Optim.
William W. Hager, Jun Liu, Subhashree Mohapatra, Anil V. Rao, Xiang-Sheng Wang
2018 — conf
Modified Radau Collocation Method for Solving Optimal Control Problems with Nonsmooth Solutions Part II: Costate Estimation and the Transformed Adjoint System.
CDC
Joseph D. Eide, William W. Hager, Anil V. Rao
2018 — conf
Modified Radau Collocation method for Solving Optimal Control Problems with Nonsmooth Solutions Part I: Lavrentiev Phenomenon and the Search Space.
CDC
Joseph D. Eide, William W. Hager, Anil V. Rao
2016 J jnl
An Efficient Hybrid Algorithm for the Separable Convex Quadratic Knapsack Problem.
ACM Trans. Math. Softw.
Timothy A. Davis, William W. Hager, James T. Hungerford
2016 J jnl
An O(1/k) Convergence Rate for the Variable Stepsize Bregman Operator Splitting Algorithm.
SIAM J. Numer. Anal.
William W. Hager, Maryam Yashtini, Hongchao Zhang
2016 J jnl
Convergence Rate for a Gauss Collocation Method Applied to Unconstrained Optimal Control.
J. Optim. Theory Appl.
William W. Hager, Hongyan Hou, Anil V. Rao
2016 J jnl
Projection algorithms for nonconvex minimization with application to sparse principal component analysis.
J. Glob. Optim.
William W. Hager, Dzung T. Phan, Jiajie Zhu
2016 J jnl
Projection onto a Polyhedron that Exploits Sparsity.
SIAM J. Optim.
William W. Hager, Hongchao Zhang
2015 J jnl
Adaptive mesh refinement method for optimal control using nonsmoothness detection and mesh size reduction.
J. Frankl. Inst.
Fengjin Liu, William W. Hager, Anil V. Rao
2015 J jnl
Continuous quadratic programming formulations of optimization problems on graphs.
Eur. J. Oper. Res.
William W. Hager, James T. Hungerford
2014 — conf
A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators.
LION
William W. Hager, James T. Hungerford, Ilya Safro
2014 J jnl
A Multilevel Bilinear Programming Algorithm For the Vertex Separator Problem.
CoRR
William W. Hager, James T. Hungerford, Ilya Safro
2014 J jnl
An affine scaling method for optimization problems with polyhedral constraints.
Comput. Optim. Appl.
William W. Hager, Hongchao Zhang
2014 J jnl
An efficient gradient method using the Yuan steplength.
Comput. Optim. Appl.
Roberta De Asmundis, Daniela di Serafino, William W. Hager, Gerardo Toraldo, Hongchao Zhang
2014 — conf
An hp mesh refinement method for optimal control using discontinuity detection and mesh size reduction.
CDC
Fengjin Liu, William W. Hager, Anil V. Rao
2014 J jnl
Error estimation in nonlinear optimization.
J. Glob. Optim.
William W. Hager, Delphine Mico-Umutesi
2014 J jnl
Optimality conditions for maximizing a function over a polyhedron.
Math. Program.
William W. Hager, James T. Hungerford
2014 J jnl
Projection algorithms for non-convex minimization, with application to sparse principal component analysis.
CoRR
William W. Hager, Jiajie Zhu
2013 J jnl
A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators.
CoRR
William W. Hager, James T. Hungerford, Ilya Safro
2013 J jnl
An exact algorithm for graph partitioning.
Math. Program.
William W. Hager, Dzung T. Phan, Hongchao Zhang
2013 J jnl
Bregman operator splitting with variable stepsize for total variation image reconstruction.
Comput. Optim. Appl.
Yunmei Chen, William W. Hager, Maryam Yashtini, Xiaojing Ye, Hongchao Zhang
2013 — conf
Costate estimation of state-inequality path constrained optimal control problems using collocation at Legendre-Gauss-Radau points.
CDC
Camila Francolin, Hongyan Hou, William W. Hager, Anil V. Rao
2013 J jnl
The Limited Memory Conjugate Gradient Method.
SIAM J. Optim.
William W. Hager, Hongchao Zhang
2012 J jnl
Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging.
SIAM J. Imaging Sci.
Yunmei Chen, William W. Hager, Feng Huang, Dzung T. Phan, Xiaojing Ye, Wotao Yin
2012 B conf
Partially parallel MR image reconstruction using sensitivity encoding.
ICIP
Maryam Yashtini, William W. Hager, Yunmei Chen, Xiaojing Ye
2011 J jnl
An Affine-Scaling Interior-Point Method for Continuous Knapsack Constraints with Application to Support Vector Machines.
SIAM J. Optim.
María D. González-Lima, William W. Hager, Hongchao Zhang
2011 J jnl
Direct trajectory optimization and costate estimation of finite-horizon and infinite-horizon optimal control problems using a Radau pseudospectral method.
Comput. Optim. Appl.
Divya Garg, Michael A. Patterson, Camila Francolin, Christopher Darby, Geoffrey T. Huntington, William W. Hager, Anil V. Rao
2011 J jnl
Gradient-Based Methods for Sparse Recovery.
SIAM J. Imaging Sci.
William W. Hager, Dzung T. Phan, Hongchao Zhang
2011 J jnl
Pseudospectral methods for solving infinite-horizon optimal control problems.
Autom.
Divya Garg, William W. Hager, Anil V. Rao
2010 J jnl
A unified framework for the numerical solution of optimal control problems using pseudospectral methods.
Autom.
Divya Garg, Michael A. Patterson, William W. Hager, Anil V. Rao, David A. Benson, Geoffrey T. Huntington
2010 J jnl
Analysis of a Quadratic Programming Decomposition Algorithm.
SIAM J. Numer. Anal.
Guy Bencteux, Eric Cancès, William W. Hager, Claude Le Bris
2009 J jnl
An Ellipsoidal Branch and Bound Algorithm for Global Optimization.
SIAM J. Optim.
William W. Hager, Dzung T. Phan
2009 J jnl
An affine-scaling interior-point CBB method for box-constrained optimization.
Math. Program.
William W. Hager, Bernard A. Mair, Hongchao Zhang
2009 J jnl
An exact algorithm for graph partitioning
CoRR
William W. Hager, Dzung T. Phan, Hongchao Zhang
2009 J jnl
Dynamic Supernodes in Sparse Cholesky Update/Downdate and Triangular Solves.
ACM Trans. Math. Softw.
Timothy A. Davis, William W. Hager
2008 J jnl
A sparse proximal implementation of the LP dual active set algorithm.
Math. Program.
Timothy A. Davis, William W. Hager
2008 J jnl
Algorithm 887: CHOLMOD, Supernodal Sparse Cholesky Factorization and Update/Downdate.
ACM Trans. Math. Softw.
Yanqing Chen, Timothy A. Davis, William W. Hager, Sivasankaran Rajamanickam
2008 J jnl
COAP 2007 Best Paper Award.
Comput. Optim. Appl.
William W. Hager
2008 J jnl
Dual multilevel optimization.
Math. Program.
Timothy A. Davis, William W. Hager
2008 J jnl
Editorial.
Comput. Optim. Appl.
Luis Alberto Fernandez, William W. Hager, Fredi Tröltzsch
2008 J jnl
Optimization of Generalized Mean-Square Error in Noisy Linear Estimation.
SIAM J. Matrix Anal. Appl.
William W. Hager, Jiangtao Luo
2008 J jnl
Self-adaptive inexact proximal point methods.
Comput. Optim. Appl.
William W. Hager, Hongchao Zhang
2008 J jnl
The generalized triangular decomposition.
Math. Comput.
Yi Jiang, William W. Hager, Jian Li
2007 J jnl
Asymptotic Convergence Analysis of a New Class of Proximal Point Methods.
SIAM J. Control. Optim.
William W. Hager, Hongchao Zhang
2007 — conf
Domain Decomposition for Electronic Structure Computations.
PARCO
Maxime Barrault, Guy Bencteux, Eric Cancès, William W. Hager, Claude Le Bris
2007 J jnl
Multilevel domain decomposition for electronic structure calculations.
J. Comput. Phys.
Maxime Barrault, Eric Cancès, William W. Hager, Claude Le Bris
2007 J jnl
Training Signal Design for Estimation of Correlated MIMO Channels With Colored Interference.
IEEE Trans. Signal Process.
Yong Liu, Tan F. Wong, William W. Hager
2006 J jnl
A New Active Set Algorithm for Box Constrained Optimization.
SIAM J. Optim.
William W. Hager, Hongchao Zhang
2006 J jnl
Algorithm 851: CG_DESCENT, a conjugate gradient method with guaranteed descent.
ACM Trans. Math. Softw.
William W. Hager, Hongchao Zhang
2006 J jnl
Editorial.
Comput. Optim. Appl.
William W. Hager
2006 J jnl
Tunable Channel Decomposition for MIMO Communications Using Channel State Information.
IEEE Trans. Signal Process.
Yi Jiang, William W. Hager, Jian Li
2005 J jnl
A New Conjugate Gradient Method with Guaranteed Descent and an Efficient Line Search.
SIAM J. Optim.
William W. Hager, Hongchao Zhang
2005 J jnl
Global convergence of SSM for minimizing a quadratic over a sphere.
Math. Comput.
William W. Hager, Soonchul Park
2005 J jnl
Joint transceiver design for MIMO communications using geometric mean decomposition.
IEEE Trans. Signal Process.
Yi Jiang, Jian Li, William W. Hager
2005 — conf
Recent Advances in Bound Constrained Optimization.
System Modelling and Optimization
William W. Hager, Hongchao Zhang
2005 J jnl
Row Modifications of a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl.
Timothy A. Davis, William W. Hager
2005 J jnl
Uniform channel decomposition for MIMO communications.
IEEE Trans. Signal Process.
Yi Jiang, Jian Li, William W. Hager
2004 J jnl
A Nonmonotone Line Search Technique and Its Application to Unconstrained Optimization.
SIAM J. Optim.
Hongchao Zhang, William W. Hager
2004 B conf
MIMO transceiver design using geometric mean decomposition.
ITW
Yi Jiang, Jian Li, William W. Hager
2004 J jnl
The Gradient Projection Method with Exact Line Search.
J. Glob. Optim.
William W. Hager, Soonchul Park
2004 C conf
Two new regularized AdaBoost algorithms.
ICMLA
Yijun Sun, Jian Li, William W. Hager
2002 J jnl
Minimizing the Profile of a Symmetric Matrix.
SIAM J. Sci. Comput.
William W. Hager
2002 J jnl
Multiset graph partitioning.
Math. Methods Oper. Res.
William W. Hager, Yaroslav Krylyuk
2002 J jnl
The Dual Active Set Algorithm and Its Application to Linear Programming.
Comput. Optim. Appl.
William W. Hager
2001 J jnl
Minimizing a Quadratic Over a Sphere.
SIAM J. Optim.
William W. Hager
2001 J jnl
Multiple-Rank Modifications of a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl.
Timothy A. Davis, William W. Hager
2001 J jnl
The Euler approximation in state constrained optimal control.
Math. Comput.
Asen L. Dontchev, William W. Hager
2000 J jnl
Iterative Methods for Nearly Singular Linear Systems.
SIAM J. Sci. Comput.
William W. Hager
2000 — conf
Load Balancing and Continuous Quadratic Programming.
IPDPS Workshops
William W. Hager
2000 J jnl
Runge-Kutta methods in optimal control and the transformed adjoint system.
Numerische Mathematik
William W. Hager
2000 J jnl
Second-Order Runge-Kutta Approximations in Control Constrained Optimal Control.
SIAM J. Numer. Anal.
Asen L. Dontchev, William W. Hager, Vladimir M. Veliov
2000 J jnl
The Wave Annihilation Technique and the Design of Nonreflective Coatings.
SIAM J. Appl. Math.
Dongxing Wang, Rouben Rostamian, William W. Hager
2000 J jnl
Uniform Convergence and Mesh Independence of Newton's Method for Discretized Variational Problems.
SIAM J. Control. Optim.
Asen L. Dontchev, William W. Hager, Vladimir M. Veliov
1999 J jnl
Graph Partitioning and Continuous Quadratic Programming.
SIAM J. Discret. Math.
William W. Hager, Yaroslav Krylyuk
1999 J jnl
Modifying a Sparse Cholesky Factorization.
SIAM J. Matrix Anal. Appl.
Timothy A. Davis, William W. Hager
1999 J jnl
Stability in the presence of degeneracy and error estimation.
Math. Program.
William W. Hager, M. Seetharama Gowda
1999 J jnl
Stabilized Sequential Quadratic Programming.
Comput. Optim. Appl.
William W. Hager
1994 J jnl
Implicit Functions, Lipschitz Maps, and Stability in Optimization.
Math. Oper. Res.
Asen L. Dontchev, William W. Hager
1993 — ch.
7 Mathematical programming - A computational perspective.
Computational Statistics
William W. Hager, Reiner Horst, Panos M. Pardalos
1993 J jnl
Application of the dual active set algorithm to quadratic network optimization.
Comput. Optim. Appl.
William W. Hager, Donald W. Hearn
1993 J jnl
Dual active sets and constrained optimization.
Ann. Oper. Res.
William W. Hager
1992 J jnl
Editorial.
Comput. Optim. Appl.
William W. Hager
1989 J jnl
Updating the Inverse of a Matrix.
SIAM Rev.
William W. Hager