COAP 2007 Best Paper Award (2008)
William W. Hager, Springer Science+business Media, W. W. Hager
Each year, the Computational Optimization and Applications (COAP) editorial board selects a paper from the preceding year’s COAP publications for the Best Paper Award. The recipient of the award...
Optimization with Dynamic Models (2007)
W. W. Hager, P. M. Pardalos, Carl A. Schweiger, Christodoulos A. Floudas
Process design is usually approached by considering the steady-state performance of the process based on an economic objective. Only after the process design is determined are the operability aspects...
Multilevel domain decomposition for electronic structure calculations (2005)
Barrault, M., Cances, E., Hager, W. W., Bris, C. Le
We introduce a new multilevel domain decomposition method (MDD) for electronic structure calculations within semi-empirical and Density Functional Theory (DFT) frameworks. This method iterates...
On a SQP-Multigrid Technique for Nonlinear Parabolic Boundary Control Problems (1997)
W. W. Hager, P. M. Pardalos, Helmuth Goldberg, Fredi Tröltzsch, H. Goldberg, F. Troltzsch
We consider the application of an SQP method to an optimal control problem governed by the heat equation with nonlinear boundary conditions. The objective functional consists of a quadratic terminal...
Absolute stability of feedback systems in Hilbert spaces (1997)
W. W. Hager, P. M. Pardalos, Francesca Bucci, Via S. Marta
The problem of absolute stability of a feedback loop of an abstract differential system in Hilbert spaces is considered. Applications of Popov's type frequency domain criteria and of the...
Multidifferential Calculus: Chain Rule, Open Mapping and Transversal Intersection Theorems (1997)
W. W. Hager, P. M. Pardalos, Hector J. Sussmann
this paper (Theorem 4.3.3). For this reason, we now believe that the more restrictive definition proposed here ought to supersede that of [15]. Since we still feel that the word used in [15] is the...
A Simple, Quadratically Convergent Interior Point Algorithm for Linear Programming and. . . (1993)
André L. Tits, W. W. Hager, D. W. Hearn, P. M. Pardalos, Jian L. Zhou
An algorithm for linear programming (LP) and convex quadratic programming (CQP) is proposed, based on an interior point iteration introduced more than ten years ago by J. Herskovits for the solution...
)1993 Kluwer Academic Publishers B.V. On Very Large Scale Assignment Problems (1993)
W. W. Hager, D. W. Hearn, P. M. Pardalos, Yusin Lee, James B. Orlin
In this paper we present computational testing results on very large scale random assignment problems. We consider a fully dense assignment problem with 2n nodes. Some conjectured or derived...
Recent Advances in Bound Constrained Optimization (1970)
A new active set algorithm (ASA) for large-scale box constrained optimization is introduced. The algorithm consists of a nonmonotone gradient projection step, an unconstrained optimization step, and...