William W. Hager

Q: What Schools Are Affiliated With William W. Hager

William W. Hager is affiliated with the following schools: University of Florida, Pennsylvania State University

William W. Hager's AcademicInfluence.com Rankings

William W. Hager

Computer Science

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#5777

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#2628

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#2750

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Computer Science

William W. Hager's Degrees

PhD Computer Science Stanford University
Masters Computer Science Stanford University
Bachelors Computer Science Stanford University

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William W. Hager's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

A New Conjugate Gradient Method with Guaranteed Descent and an Efficient Line Search (2005) (1007)
Updating the Inverse of a Matrix (1989) (976)
A SURVEY OF NONLINEAR CONJUGATE GRADIENT METHODS (2005) (850)
Algorithm 887: CHOLMOD, Supernodal Sparse Cholesky Factorization and Update/Downdate (2008) (728)
A unified framework for the numerical solution of optimal control problems using pseudospectral methods (2010) (628)
A Nonmonotone Line Search Technique and Its Application to Unconstrained Optimization (2004) (566)
Runge-Kutta methods in optimal control and the transformed adjoint system (2000) (446)
Algorithm 851: CG_DESCENT, a conjugate gradient method with guaranteed descent (2006) (376)
An hp‐adaptive pseudospectral method for solving optimal control problems (2011) (372)
Direct trajectory optimization and costate estimation of finite-horizon and infinite-horizon optimal control problems using a Radau pseudospectral method (2011) (342)
Joint transceiver design for MIMO communications using geometric mean decomposition (2005) (314)
Pseudospectral methods for solving infinite-horizon optimal control problems (2011) (295)
A New Active Set Algorithm for Box Constrained Optimization (2006) (265)
Review: R. Glowinski, J. L. Lions and R. Trémolières, Numerical analysis of variational inequalities (1983) (236)
Lipschitz Continuity for Constrained Processes (1979) (230)
Discontinuous Galerkin methods for ordinary differential equations (1981) (211)
Direct Trajectory Optimization Using a Variable Low-Order Adaptive Pseudospectral Method (2011) (208)
The cyclic Barzilai-–Borwein method for unconstrained optimization (2006) (200)
Error estimates for the finite element solution of variational inequalities (1977) (194)
Error estimates for the finite element solution of variational inequalities (1978) (186)
Second-Order Runge-Kutta Approximations in Control Constrained Optimal Control (2000) (183)
Large scale optimization : state of the art (1994) (180)
Minimizing a Quadratic Over a Sphere (2001) (166)
The Euler approximation in state constrained optimal control (2001) (160)
An inverse mapping theorem for set-valued maps (1994) (158)
A ph mesh refinement method for optimal control (2015) (150)
Uniform channel decomposition for MIMO communications (2004) (146)
Modifying a Sparse Cholesky Factorization (1999) (144)
The geometric mean decomposition (2005) (140)
Lipschitzian stability in nonlinear control and optimization (1993) (138)
Dynamic Supernodes in Sparse Cholesky Update/Downdate and Triangular Solves (2009) (135)
Optimality, stability, and convergence in nonlinear control (1995) (128)
Applied Numerical Linear Algebra (1987) (122)
Stabilized Sequential Quadratic Programming (1999) (121)
Training Signal Design for Estimation of Correlated MIMO Channels With Colored Interference (2007) (111)
The Limited Memory Conjugate Gradient Method (2013) (104)
Multiplier methods for nonlinear optimal control (1990) (100)
Row Modifications of a Sparse Cholesky Factorization (2005) (100)
Adaptive mesh refinement method for optimal control using nonsmoothness detection and mesh size reduction (2015) (99)
The generalized triangular decomposition (2007) (89)
Multiple-Rank Modifications of a Sparse Cholesky Factorization (2000) (88)
Implicit Functions, Lipschitz Maps, and Stability in Optimization (1994) (88)
Uniform channel decomposition for MIMO communications (2005) (86)
Stability in the presence of degeneracy and error estimation (1999) (86)
An efficient gradient method using the Yuan steplength (2014) (85)
Optimal Control: Theory, Algorithms, and Applications (1998) (75)
Error bounds for euler approximation of a state and control constrained optimal control problem (2000) (72)
Graph Partitioning and Continuous Quadratic Programming (1999) (71)
Convergence and Stability Properties of the Discrete Riccati Operator Equation and the Associated Optimal Control and Filtering Problems (1976) (71)
Bregman operator splitting with variable stepsize for total variation image reconstruction (2013) (71)
Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging (2012) (68)
Rates of Convergence for Discrete Approximations to Unconstrained Control Problems (1976) (67)
Lipschitzian Stability for State Constrained Nonlinear Optimal Control (1998) (63)
Dual Approximations in Optimal Control (1984) (57)
Convergence Rate for a Gauss Collocation Method Applied to Unconstrained Optimal Control (2015) (54)
An affine-scaling interior-point CBB method for box-constrained optimization (2009) (53)
Adaptive Mesh Refinement Method for Optimal Control Using Decay Rates of Legendre Polynomial Coefficients (2018) (52)
Analysis and implementation of a dual algorithm for constrained optimization (1993) (51)
Gradient-Based Methods for Sparse Recovery (2009) (50)
An exact algorithm for graph partitioning (2009) (50)
Uniform Convergence and Mesh Independence of Newton's Method for Discretized Variational Problems (2000) (49)
Direct Trajectory Optimization and Costate Estimation of General Optimal Control Problems Using a Radau Pseudospectral Method (2009) (49)
Numerical Analysis in Optimal Control (2001) (48)
AN OVERVIEW OF THREE PSEUDOSPECTRAL METHODS FOR THE NUMERICAL SOLUTION OF OPTIMAL CONTROL PROBLEMS (2017) (45)
Costate approximation in optimal control using integral Gaussian quadrature orthogonal collocation methods (2015) (45)
Convergence Rate for a Gauss Collocation Method Applied to Unconstrained Optimal Control (2016) (41)
Lagrange Duality Theory for Convex Control Problems (1976) (40)
Tunable Channel Decomposition for MIMO Communications Using Channel State Information (2006) (39)
Self-adaptive inexact proximal point methods (2008) (39)
The Dual Active Set Algorithm and Its Application to Linear Programming (2002) (38)
Dual techniques for constrained optimization (1987) (37)
Global convergence of SSM for minimizing a quadratic over a sphere (2004) (36)
Multilevel domain decomposition for electronic structure calculations (2005) (36)
An Alternating Direction Approximate Newton Algorithm for Ill-Conditioned Inverse Problems with Application to Parallel MRI (2015) (35)
A new approach to Lipschitz continuity in state constrained optimal control 1 1 This research was su (1998) (34)
Large Scale Optimization (1994) (34)
The Ritz–Trefftz Method for State and Control Constrained Optimal Control Problems (1975) (33)
An O(1/k) Convergence Rate for the Variable Stepsize Bregman Operator Splitting Algorithm (2016) (31)
LEBESGUE CONSTANTS ARISING IN A CLASS OF COLLOCATION METHODS (2015) (30)
A multilevel bilinear programming algorithm for the vertex separator problem (2014) (29)
An Affine-Scaling Interior-Point Method for Continuous Knapsack Constraints with Application to Support Vector Machines (2011) (28)
Convergence of a Gauss Pseudospectral Method for Optimal Control (2012) (28)
Iterative Methods for Nearly Singular Linear Systems (2000) (26)
Application of the dual active set algorithm to quadratic network optimization (1993) (26)
Convergence rate for a Radau hp collocation method applied to constrained optimal control (2016) (25)
The Gradient Projection Method with Exact Line Search (2004) (25)
Minimizing the Profile of a Symmetric Matrix (2001) (24)
Active constraints, indefinite quadratic test problems, and complexity (1991) (23)
An inexact accelerated stochastic ADMM for separable convex optimization (2020) (22)
A generalized eigenproblem for the Laplacian which arises in lightning (2008) (20)
A differential equation model for functional mapping of a virus-cell dynamic system (2010) (20)
The LP Dual Active Set Algorithm (1998) (19)
Linear programming approaches to the convex hull problem in Rm (1995) (19)
Projection onto a Polyhedron that Exploits Sparsity (2016) (19)
An hp mesh refinement method for optimal control using discontinuity detection and mesh size reduction (2014) (18)
Approximations to the Multiplier Method (1985) (18)
An Ellipsoidal Branch and Bound Algorithm for Global Optimization (2009) (18)
An Efficient Hybrid Algorithm for the Separable Convex Quadratic Knapsack Problem (2016) (17)
Bounds for integration matrices that arise in Gauss and Radau collocation (2019) (17)
An active set algorithm for nonlinear optimization with polyhedral constraints (2016) (17)
Asymptotic Convergence Analysis of a New Class of Proximal Point Methods (2007) (16)
Continuous quadratic programming formulations of optimization problems on graphs (2015) (16)
Charge rearrangement by sprites over a north Texas mesoscale convective system (2012) (15)
A Preliminary Analysis of a Variable-Order Approach to Solving Optimal Control Problems Using Pseudospectral Methods (2010) (15)
Simulations of Electric Fields within a Thunderstorm (1989) (15)
Analysis of charge transport during lightning using balloon‐borne electric field sensors and Lightning Mapping Array (2007) (15)
Gauss Pseudospectral Method for Solving Infinite-Horizon Optimal Control Problems (2010) (14)
Multiset graph partitioning (2002) (14)
Inexact alternating direction methods of multipliers for separable convex optimization (2019) (14)
MIMO transceiver design using geometric mean decomposition (2004) (13)
The evolution and discharge of electric fields within a thunderstorm (1989) (12)
Projection algorithms for nonconvex minimization with application to sparse principal component analysis (2014) (12)
An analysis of errors in the location, current, and velocity of lightning (1995) (12)
A SURVEY OF NONLINEAR CONJUGATE GRADIENT (2005) (12)
Reflection and refraction of elastic waves for stratified materials (1988) (12)
Partially parallel MR image reconstruction using sensitivity encoding (2012) (11)
A sparse proximal implementation of the LP dual active set algorithm (2007) (11)
Transceiver design using generalized triangular decomposition for MIMO communications with QoS constraints (2004) (11)
Convergence rates for an inexact ADMM applied to separable convex optimization (2020) (11)
An affine scaling method for optimization problems with polyhedral constraints (2014) (11)
Computational Method for Optimal Guidance and Control Using Adaptive Gaussian Quadrature Collocation (2019) (11)
Inexact alternating direction multiplier methods for separable convex optimization (2016) (11)
Runge-Kutta Discretizations of Optimal Control Problems (2000) (10)
Two new regularized AdaBoost algorithms (2004) (10)
Mesh Refinement Method for Solving Bang-Bang Optimal Control Problems Using Direct Collocation (2019) (10)
Dual techniques for minimax (1987) (9)
The Wave Annihilation Technique and the Design of Nonreflective Coatings (2000) (9)
Three-dimensional charge structure of a mountain thunderstorm (2010) (9)
The Dual Active Set Algorithm and the Iterative Solution of Linear Programs (2003) (9)
A CONTINUOUS QUADRATIC PROGRAMMING FORMULATION OF THE VERTEX SEPARATOR PROBLEM ∗ (2013) (9)
A ph Collocation Scheme for Optimal Control (2013) (9)
A derivative-free bracketing scheme for univariate minimization (1990) (8)
On Quantitative Stability in Optimization and Optimal Control (2000) (8)
Electric Field Reversal in Sprite Electric Field Signature (2013) (8)
An Improved Adaptive hp Algorithm using Pseudospectral Methods for Optimal Control (2010) (8)
PACBB: A Projected Adaptive Cyclic Barzilai-Borwein Method for Box Constrained Optimization (2006) (8)
Block Exchange in Graph Partitioning (2000) (8)
A Discrete Model for the Lightning Discharge (1998) (8)
Dual multilevel optimization (2007) (7)
Error estimation in nonlinear optimization (2014) (7)
THE SEPARABLE CONVEX QUADRATIC KNAPSACK PROBLEM (2013) (7)
Multiscale Optimization Methods and Applications (2014) (7)
A derivative-based bracketing scheme for univariate minimization and the conjugate gradient method (1989) (7)
Recent Advances in Bound Constrained Optimization (2005) (7)
Mesh refinement method for solving optimal control problems with nonsmooth solutions using jump function approximations (2020) (7)
Algorithm 1003: Mongoose, a Graph Coarsening and Partitioning Library (2020) (6)
Domain Decomposition and Electronic Structure Computations: A Promising Approach (2008) (6)
BOX CONSTRAINED OPTIMIZATION FOR SIGNAL DETECTION IN MIMO CHANNELS (2007) (6)
Optimality conditions for maximizing a function over a polyhedron (2014) (6)
Active Set Strategies and the LP Dual Active Set Algorithm1 (1996) (6)
Dual techniques for constrained optimization. II (1989) (5)
THE CHANGE IN ELECTRIC POTENTIAL DUE TO LIGHTNING (2008) (5)
Non-constant Quasi-hyperbolic Discounting (2017) (5)
Modified Radau Collocation method for Solving Optimal Control Problems with Nonsmooth Solutions Part I: Lavrentiev Phenomenon and the Search Space (2018) (5)
Optimization of generalized mean square error in signal processing and communication (2006) (5)
Euler appoximation of the feasible set (1994) (5)
Optimal Coatings, Bang-Bang Controls, And Gradient Techniques (2007) (5)
Modifying a Sparse Cholesky Factorization | SIAM Journal on Matrix Analysis and Applications | Vol. 20, No. 3 | Society for Industrial and Applied Mathematics (1999) (5)
Free boundaries and finite elements in one dimension (1975) (5)
A Variable-Order hp – Adaptive Pseudospectral Method for Solving Optimal Control Problems (2010) (5)
Minimizing the Profile of a Matrix (2000) (4)
A Fast Suboptimal Algorithm for Detection of 16-QAM Signaling in MIMO Channels (2007) (4)
Perturbation in eigenvalues (1982) (4)
A Newton-type Active Set Method for Nonlinear Optimization with Polyhedral Constraints. (2020) (4)
Modified Radau Collocation Method for Solving Optimal Control Problems with Nonsmooth Solutions Part II: Costate Estimation and the Transformed Adjoint System (2018) (4)
Bidiagonalization and diagonalization (1987) (4)
7 Mathematical programming - A computational perspective (1993) (4)
Solving Singular Control Problems in Mathematical Biology, Using PASA (2020) (3)
A modified fast Fourier transform for polynomial evaluation and the jenkins-Traub algorithm (1986) (3)
Analysis of a Quadratic Programming Decomposition Algorithm (2010) (3)
An investigation of feasible descent algorithms for estimating the condition number of a matrix (2012) (3)
Mesh-Generation Method for Real-Time Optimal Control Using Adaptive Gaussian Quadrature Collocation (2018) (3)
Charge rearrangement deduced from nearby electric field measurements of an intracloud flash with K‒changes (2013) (3)
Modified Legendre–Gauss–Radau Collocation Method for Optimal Control Problems with Nonsmooth Solutions (2021) (2)
Inequalities and Approximation with Applications to VSTOL Aircraft (1978) (2)
Mesh Refinement Method for Optimal Control Problems with Discontinuous Control Profiles (2017) (2)
Homogenization for degenerate equations of elasticity (1988) (2)
A Decentralized Multi-block ADMM for Demand-side Primary Frequency Control using Local Frequency Measurements (2015) (2)
A pseudospectral method for optimal control based on collocation at the Gauss points (2018) (2)
The Switch Point Algorithm (2020) (2)
A Continuous Refinement Strategy for the Multilevel Computation of Vertex Separators (2013) (2)
Norm-bounded tridiagonalizing similarity transformations for matrices (1988) (2)
Implicit functions defined by generalized equations (1996) (2)
Projection algorithms for non-convex minimization, with application to sparse principal component analysis (2014) (1)
Convergence rate for a Radau hp collocation method applied to constrained optimal control (2019) (1)
Dynamics of a non-linear spatial trade model (1972) (1)
Variable-Order Mesh Refinement for Solving Optimal Control Problems Using an Integral Legendre-Gauss-Radau Collocation Method (2013) (1)
An affine scaling method for optimization problems with polyhedral constraints (2013) (1)
Dual techinques for constrained optimization (1985) (1)
Algorithm 1003 (2020) (1)
Costate estimation of state-inequality path constrained optimal control problems using collocation at Legendre-Gauss-Radau points (2013) (1)
Semi-dual approximations in optimal control (1980) (1)
NPASA: An algorithm for nonlinear programming -- Motivation and Global Convergence (2021) (1)
A Multilevel Vertex Separator Algorithm Based on the Solution of Bilinear Programs (2016) (1)
Dual active sets and constrained optimization (1993) (1)
A Preliminary Analysis of Mesh Refinement for Optimal Control Using Discontinuity Detection via Jump Function Approximations (2018) (1)
The Application of Eigenpair Stability to Block Diagonalization (1997) (1)
Development of the Langmuir Electric Field Array (LEFA) (2009) (1)
Invariant imbedding and the reflection of elastic waves (1989) (1)
An exact algorithm for graph partitioning (2011) (1)
Optimal Projectile Shapes for Minimum Total Drag (1977) (1)
NPASA: An algorithm for nonlinear programming -- Local Convergence (2021) (1)
Discretization error in optimal control (1991) (0)
Computational Functional Analysis (Ramon E. Moore) (1986) (0)
Optimization of Generalized Mean-Square Error in Noisy Linear Estimation (2008) (0)
Nonlinear Optimization for Power Systems Cluster : Optimization in Energy Systems (2015) (0)
An efficient gradient method using the Yuan steplength (2014) (0)
Algorithm XXXX: A Gradient-Based Implementation of the Polyhedral Active Set Algorithm (2022) (0)
Control ranges and the optimal solutions of the minimal reflectance problem; homogeneous materials, normal incidence, and narrow bandwidths (1980) (0)
Box Constrained Optimization for Detection of 16-QAM Signaling in MIMO Channels (2007) (0)
COAP 2008 best paper award: Paper of M. Weiser, T. Gänzler, and A. Schiela (2009) (0)
Lightning Charge Transport During a Thunderstorm Near Langmuir Laboratory on 18 August 2004 (2007) (0)
Functional Analysis and Linear Control Theory (J. R. Leigh) (1982) (0)
An active set algorithm for nonlinear optimization with polyhedral constraints (2016) (0)
Analysis of Global Expansion Methods: Weakly Asymptotically Diagonal Systems (L. M. Delves and T. L. Freeman) (1983) (0)
Correction to: Convergence rate for a Radau hp collocation method applied to constrained optimal control (2019) (0)
Load Balancing and Continuous Quadratic Programming (2000) (0)
The Relationship Between Continuing Current and Positive Breakdown (2013) (0)
A multilevel bilinear programming algorithm for the vertex separator problem (2017) (0)
Minimum drag surfaces (1977) (0)
Analysis and Implementation of a Dual Algorithm for Constrained Optimization la (1993) (0)
Bounds for integration matrices that arise in Gauss and Radau collocation (2019) (0)
Fifth SIAM Conference on Control and Its Applications. July 11 - 14, 2001, Town & Country Hotel, San Diego, CA (2001) (0)
AN EFFICIENT METHOD FOR DETECTION OF QAM SIGNALLING IN LARGE MIMO SYSTEMS (2008) (0)
COAP 2008 best paper award: Paper of P.M. Hahn, B.-J. Kim, M. Guignard, J.M. Smith and Y.-R. Zhu (2009) (0)
An investigation of feasible descent algorithms for estimating the condition number of a matrix (2010) (0)
Analysis and Optimization of Elastic Materials. (1995) (0)
Projection algorithms for nonconvex minimization with application to sparse principal component analysis (2016) (0)
Bregman operator splitting with variable stepsize for total variation image reconstruction (2012) (0)
John von Neumann Institute for Computing Domain Decomposition for Electronic Structure Computations (2008) (0)
Inexact alternating direction methods of multipliers for separable convex optimization (2019) (0)
Discontinuous Galerkin Methods for Ordinary Differential liquations* (2010) (0)
Correction to: Convergence rate for a Radau hp collocation method applied to constrained optimal control (2019) (0)
COAP 2008 best paper award : Paper of (2009) (0)
A Computational Approach for Near-Optimal Path Planning and Guidance for Systems with Nonholonomic Contraints (2010) (0)
Optimal Processes on Manifolds (Roel Nottrot) (1985) (0)
Mathematical Programming and Control Theory (B. D. Craven) (1980) (0)
Modified Legendre-Gauss-Radau Collocation Method for Solving Optimal Control Problems with Nonsmooth Solutions (2019) (0)
COAP 2007 Best Paper Award (2008) (0)
Transactions of the Army Conference on Applied Mathematics and Computing (7Th) Held in West Point, New York on 6-9 June 1989 (1990) (0)
Domain Decomposition for Electronic Structure Computations (2007) (0)
Penalty, Multiplier, and Newton Methods for a Class of Nonlinear Optimal Control Problems (1991) (0)
Error estimation in nonlinear optimization (2014) (0)
Optimality conditions for maximizing a function over a polyhedron (2013) (0)
Three Dimensional Current Generator Structure of a Mountain Thunderstorm: Analysis of Some Interesting Flashes (2008) (0)

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What Schools Are Affiliated With William W. Hager?

William W. Hager is affiliated with the following schools:

William W. Hager's Academic­Influence.com Rankings