SIAM Journal on Control and Optimization
Some Nonoverlapping Domain Decomposition Methods
SIAM Review
Primal-Dual Strategy for Constrained Optimal Control Problems
SIAM Journal on Control and Optimization
Finite Element Method for Elliptic Problems
Finite Element Method for Elliptic Problems
Primal-Dual Active Set Strategy for a General Class of Constrained Optimal Control Problems
SIAM Journal on Optimization
Error Estimates for the Numerical Approximation of a Semilinear Elliptic Control Problem
Computational Optimization and Applications
The Primal-Dual Active Set Strategy as a Semismooth Newton Method
SIAM Journal on Optimization
Error Estimates for the Numerical Approximation of Boundary Semilinear Elliptic Control Problems
Computational Optimization and Applications
Journal of Computational and Applied Mathematics
Error estimates for the numerical approximation of Neumann control problems
Computational Optimization and Applications - Special issue: Numerical analysis of optimization in partial differential equations
Computational Optimization and Applications - Special issue: Numerical analysis of optimization in partial differential equations
Computational Optimization and Applications - Special issue: Numerical analysis of optimization in partial differential equations
Computational Optimization and Applications
Computational Optimization and Applications
Error estimates for the numerical approximation of Neumann control problems
Computational Optimization and Applications
Computational Optimization and Applications
Discretization of elliptic control problems with time dependent parameters
Applied Numerical Mathematics
Computational Optimization and Applications
A priori error estimates for elliptic optimal control problems with a bilinear state equation
Journal of Computational and Applied Mathematics
Optimal control under reduced regularity
Applied Numerical Mathematics
Journal of Computational and Applied Mathematics
Computational Optimization and Applications
COAP 2008 best paper award: Paper of M. Weiser, T. Gänzler, and A. Schiela
Computational Optimization and Applications
Computational Optimization and Applications
Polynomial integration on regions defined by a triangle and a conic
Proceedings of the 2010 International Symposium on Symbolic and Algebraic Computation
Computational Optimization and Applications
Approximation of Boundary Control Problems on Curved Domains
SIAM Journal on Control and Optimization
Computational Optimization and Applications
A multigrid method for constrained optimal control problems
Journal of Computational and Applied Mathematics
On saturation effects in the Neumann boundary control of elliptic optimal control problems
Computational Optimization and Applications
Computational Optimization and Applications
Computational Optimization and Applications
Robust error estimates for the finite element approximation of elliptic optimal control problems
Journal of Computational and Applied Mathematics
SIAM Journal on Control and Optimization
Mixed Finite Element Method for Dirichlet Boundary Control Problem Governed by Elliptic PDEs
SIAM Journal on Control and Optimization
On finite element error estimates for optimal control problems with elliptic PDEs
LSSC'09 Proceedings of the 7th international conference on Large-Scale Scientific Computing
Boundary concentrated finite elements for optimal boundary control problems of elliptic PDEs
Computational Optimization and Applications
A note on the approximation of elliptic control problems with bang-bang controls
Computational Optimization and Applications
Multigrid second-order accurate solution of parabolic control-constrained problems
Computational Optimization and Applications
Finite element error estimates for Neumann boundary control problems on graded meshes
Computational Optimization and Applications
Approximation of sparse controls in semilinear elliptic equations
LSSC'11 Proceedings of the 8th international conference on Large-Scale Scientific Computing
Computational Optimization and Applications
Mimetic Discretizations of Elliptic Control Problems
Journal of Scientific Computing
Error estimates for parabolic optimal control problems with control and state constraints
Computational Optimization and Applications
Calcolo: a quarterly on numerical analysis and theory of computation
Computational Optimization and Applications
Determination of a source in the heat equation from integral observations
Journal of Computational and Applied Mathematics
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A new discretization concept for optimal control problems with control constraints is introduced which utilizes for the discretization of the control variable the relation between adjoint state and control. Its key feature is not to discretize the space of admissible controls but to implicitly utilize the first order optimality conditions and the discretization of the state and adjoint equations for the discretization of the control. For discrete controls obtained in this way an optimal error estimate is proved. The application to control of elliptic equations is discussed. Finally it is shown that the new concept is numerically implementable with only slight increase in program management. A numerical test confirms the theoretical investigations.