A review of some recent results on the output least squares formulation of parameter estimation problems. - Karl Kunisch (Autom., 1988)

The Augmented Lagrangian Method for Equality and Inequality Constraints in Hilbert Spaces. - Kazufumi Ito; Karl Kunisch (Math. Program., 1990)

A Numerical Study of an Augmented Lagrangian Method for the Estimation of Parameters in Elliptic Systems. - Kazufumi Ito; M. Kroller; Karl Kunisch (SIAM J. Sci. Comput., 1991)

On the Choice of the Regularization Parameter in Nonlinear Inverse Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Optim., 1992)

On a class of damped Morozov principles. - Karl Kunisch (Computing, 1993)

On Weakly Nonlinear Inverse Problems. - Guy Chavent; Karl Kunisch (SIAM J. Appl. Math., 1996)

Augmented Lagrangian-SQP-Methods in Hilbert Spaces and Application to Control in the Coefficients Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Optim., 1996)

A Comparison of a Moreau-Yosida-Based Active Set Strategy and Interior Point Methods for Constrained Optimal Control Problems. - Maïtine Bergounioux; Mounir Haddou; Michael Hintermüller; Karl Kunisch (SIAM J. Optim., 2000)

Newton's Method for a Class of Weakly Singular Optimal Control Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Optim., 2000)

The Numerical Solution of the Steady State Solid Fuel Ignition Model and Its Optimal Control. - Alfio Borzì; Karl Kunisch (SIAM J. Sci. Comput., 2000)

Numerical Gradients for Shape Optimization Based on Embedding Domain Techniques. - Karl Kunisch; Gunther H. Peichl (Comput. Optim. Appl., 2001)

Galerkin proper orthogonal decomposition methods for parabolic problems. - Karl Kunisch; Stefan Volkwein (Numerische Mathematik, 2001)

Second Order Methods for Optimal Control of Time-Dependent Fluid Flow. - Michael Hinze; Karl Kunisch (SIAM J. Control. Optim., 2001)

Primal-Dual Strategy for State-Constrained Optimal Control Problems. - Maïtine Bergounioux; Karl Kunisch (Comput. Optim. Appl., 2002)

Accuracy and Convergence Properties of the Finite Difference Multigrid Solution of an Optimal Control Optimality System. - Alfio Borzì; Karl Kunisch; Do Y. Kwak 001 (SIAM J. Control. Optim., 2002)

Optimal Control of the Solid Fuel Ignition Model with H[sup 1]-Cost. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2002)

Asymptotic Properties of Receding Horizon Optimal Control Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2002)

The Primal-Dual Active Set Strategy as a Semismooth Newton Method. - Michael Hintermüller; Kazufumi Ito; Karl Kunisch (SIAM J. Optim., 2002)

Primal-Dual Active Set Strategy for a General Class of Constrained Optimal Control Problems. - Karl Kunisch; Arnd Rösch (SIAM J. Optim., 2002)

Galerkin Proper Orthogonal Decomposition Methods for a General Equation in Fluid Dynamics. - Karl Kunisch; Stefan Volkwein (SIAM J. Numer. Anal., 2002)

Shape Optimization and Fictitious Domain Approach for Solving Free Boundary Problems of Bernoulli Type. - Jaroslav Haslinger; Tomás Kozubek; Karl Kunisch; Gunther H. Peichl (Comput. Optim. Appl., 2003)

Tube Methods for BV Regularization. - Walter Hinterberger; Michael Hintermüller; Karl Kunisch; Markus von Oehsen; Otmar Scherzer (J. Math. Imaging Vis., 2003)

On the structure of Lagrange multipliers for state-constrained optimal control problems. - Maïtine Bergounioux; Karl Kunisch (Syst. Control. Lett., 2003)

Semi-smooth Newton methods for state-constrained optimal control problems. - Kazufumi Ito; Karl Kunisch (Syst. Control. Lett., 2003)

An Infeasible Active Set Method for Quadratic Problems with Simple Bounds. - Karl Kunisch; Franz Rendl (SIAM J. Optim., 2003)

Optimal Control Formulation for Determining Optical Flow. - Alfio Borzì; Kazufumi Ito; Karl Kunisch (SIAM J. Sci. Comput., 2003)

HJB-POD-Based Feedback Design for the Optimal Control of Evolution Problems. - Karl Kunisch; Stefan Volkwein; Lei Xie (SIAM J. Appl. Dyn. Syst., 2004)

Total Bounded Variation Regularization as a Bilaterally Constrained Optimization Problem. - Karl Kunisch; Michael Hintermüller (SIAM J. Appl. Math., 2004)

The Primal-Dual Active Set Method for Nonlinear Optimal Control Problems with Bilateral Constraints. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2004)

A Multigrid Scheme for Elliptic Constrained Optimal Control Problems. - Alfio Borzì; Karl Kunisch (Comput. Optim. Appl., 2005)

Denoising of Smooth Images Using L1-Fitting. - Tommi Kärkkäinen; Karl Kunisch; Kirsi Majava (Computing, 2005)

Trading Regions Under Proportional Transaction Costs. - Karl Kunisch; Jörn Sass (OR, 2006)

A Semi-smooth Newton Method for Regularized State-constrained Optimal Control of the Navier-Stokes Equations. - Juan Carlos de los Reyes; Karl Kunisch (Computing, 2006)

A globalization strategy for the multigrid solution of elliptic optimal control problems. - Alfio Borzì; Karl Kunisch (Optim. Methods Softw., 2006)

Optimal Control for a Stationary MHD System in Velocity-Current Formulation. - Roland Griesse; Karl Kunisch (SIAM J. Control. Optim., 2006)

Feasible and Noninterior Path-Following in Constrained Minimization with Low Multiplier Regularity. - Michael Hintermüller; Karl Kunisch (SIAM J. Control. Optim., 2006)

Receding Horizon Control with Incomplete Observations. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2006)

Path-following Methods for a Class of Constrained Minimization Problems in Function Space. - Michael Hintermüller; Karl Kunisch (SIAM J. Optim., 2006)

Convergence of the Primal-Dual Active Set Strategy for Diagonally Dominant Systems. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2007)

Optimal Bilinear Control of an Abstract Schrödinger Equation. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2007)

Optimal Vortex Reduction for Instationary Flows Based on Translation Invariant Cost Functionals. - Karl Kunisch; Boris Vexler (SIAM J. Control. Optim., 2007)

Constrained Dirichlet Boundary Control in L2 for a Class of Evolution Equations. - Karl Kunisch; Boris Vexler (SIAM J. Control. Optim., 2007)

Lagrange multiplier approach to variational problems and applications. - Kazufumi Ito; Karl Kunisch (SIAM, 2008)

Reduced-Order Optimal Control Based on Approximate Inertial Manifolds for Nonlinear Dynamical Systems. - Kazufumi Ito; Karl Kunisch (SIAM J. Numer. Anal., 2008)

On a semi-smooth Newton method and its globalization. - Kazufumi Ito; Karl Kunisch (Math. Program., 2009)

Asymptotic Properties of Feedback Solutions for a Class of Quantum Control Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2009)

PDE-Constrained Optimization Subject to Pointwise Constraints on the Control, the State, and Its Derivative. - Michael Hintermüller; Karl Kunisch (SIAM J. Optim., 2009)

Semismooth Newton Methods for Time-Optimal Control for a Class of ODEs. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2010)

Optimal Control for an Elliptic System with Polygonal State Constraints. - Karl Kunisch; Kewei Liang; Xiliang Lu (SIAM J. Control. Optim., 2010)

Total Generalized Variation. - Kristian Bredies; Karl Kunisch; Thomas Pock (SIAM J. Imaging Sci., 2010)

A Semismooth Newton Method for L1 Data Fitting with Automatic Choice of Regularization Parameters and Noise Calibration. - Christian Clason; Bangti Jin; Karl Kunisch (SIAM J. Imaging Sci., 2010)

Approximate Nullspace Iterations for KKT Systems. - Kazufumi Ito; Karl Kunisch; Volker Schulz 001; Ilia Gherman (SIAM J. Matrix Anal. Appl., 2010)

A Duality-Based Splitting Method for l1-TV Image Restoration with Automatic Regularization Parameter Choice. - Christian Clason; Bangti Jin; Karl Kunisch (SIAM J. Sci. Comput., 2010)

Numerical solution for optimal control of the reaction-diffusion equations in cardiac electrophysiology. - Chamakuri Nagaiah; Karl Kunisch; Gernot Plank (Comput. Optim. Appl., 2011)

A parallel Newton-Krylov method for optimal control of the monodomain model in cardiac electrophysiology. - Karl Kunisch; Chamakuri Nagaiah; Marcus Wagner (Comput. Vis. Sci., 2011)

Minimal Effort Problems and Their Treatment by Semismooth Newton Methods. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2011)

Karush-Kuhn-Tucker Conditions for Nonsmooth Mathematical Programming Problems in Function Spaces. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2011)

Semismooth Newton Methods for Optimal Control of the Wave Equation with Control Constraints. - Axel Kröner; Karl Kunisch; Boris Vexler (SIAM J. Control. Optim., 2011)

Obstacle Problems with Cohesion: A Hemivariational Inequality Approach and Its Efficient Numerical Solution. - Michael Hintermüller; Victor A. Kovtunenko; Karl Kunisch (SIAM J. Optim., 2011)

On free surface PDE constrained shape optimization problems. - H. Kasumba; Karl Kunisch (Appl. Math. Comput., 2012)

A measure space approach to optimal source placement. - Christian Clason; Karl Kunisch (Comput. Optim. Appl., 2012)

Vortex control in channel flows using translational invariant cost functionals. - H. Kasumba; Karl Kunisch (Comput. Optim. Appl., 2012)

Path-following for optimal control of stationary variational inequalities. - Karl Kunisch; Daniel Wachsmuth (Comput. Optim. Appl., 2012)

Approximation of Elliptic Control Problems in Measure Spaces with Sparse Solutions. - Eduardo Casas; Christian Clason; Karl Kunisch (SIAM J. Control. Optim., 2012)

Vortex control of instationary channel flows using translation invariant cost functionals. - H. Kasumba; Karl Kunisch (Comput. Optim. Appl., 2013)

Primal-dual methods for the computation of trading regions under proportional transaction costs. - Roland Herzog; Karl Kunisch; Jörn Sass (Math. Methods Oper. Res., 2013)

Optimal control for elliptic systems with pointwise euclidean norm constraints on the controls. - Karl Kunisch; Xiliang Lu (Math. Program., 2013)

Parabolic Control Problems in Measure Spaces with Sparse Solutions. - Eduardo Casas; Christian Clason; Karl Kunisch (SIAM J. Control. Optim., 2013)

On Time Optimal Control of the Wave Equation and Its Numerical Realization as Parametric Optimization Problem. - Karl Kunisch; Daniel Wachsmuth (SIAM J. Control. Optim., 2013)

A Bilevel Optimization Approach for Parameter Learning in Variational Models. - Karl Kunisch; Thomas Pock (SIAM J. Imaging Sci., 2013)

A minimum effort optimal control problem for the wave equation. - Axel Kröner; Karl Kunisch (Comput. Optim. Appl., 2014)

Boundary control of bidomain equations with state-dependent switching source functions in the ionic model. - Chamakuri Nagaiah; Christian Engwer; Karl Kunisch (J. Comput. Phys., 2014)

A Note on the Existence of Nonsmooth Nonconvex Optimization Problems. - Kazufumi Ito; Karl Kunisch (J. Optim. Theory Appl., 2014)

On Computation of the Shape Hessian of the Cost Functional Without Shape Sensitivity of the State Variable. - H. Kasumba; Karl Kunisch (J. Optim. Theory Appl., 2014)

Lossy Compression in Optimal Control of Cardiac Defibrillation. - Sebastian Götschel; Chamakuri Nagaiah; Karl Kunisch; Martin Weiser (J. Sci. Comput., 2014)

Riccati-Based Feedback Control of the Monodomain Equations With the Fitzhugh-Nagumo Model. - Tobias Breiten; Karl Kunisch (SIAM J. Control. Optim., 2014)

Optimal Control of Semilinear Elliptic Equations in Measure Spaces. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2014)

Optimal Control with Lp(Ω), $p in [0, 1)$, Control Cost. - Kazufumi Ito; Karl Kunisch (SIAM J. Control. Optim., 2014)

High Precision Identification of an Object: Optimality-Conditions-Based Concept of Imaging. - Victor A. Kovtunenko; Karl Kunisch (SIAM J. Control. Optim., 2014)

Measure Valued Directional Sparsity for Parabolic Optimal Control Problems. - Karl Kunisch; Konstantin Pieper; Boris Vexler (SIAM J. Control. Optim., 2014)

On Infimal Convolution of TV-Type Functionals and Applications to Video and Image Reconstruction. - Martin Holler; Karl Kunisch (SIAM J. Imaging Sci., 2014)

Feedback stabilization of the Schlögl model by LQG-balanced truncation. - Tobias Breiten; Karl Kunisch (ECC, 2015)

Robust ℓ1 Approaches to Computing the Geometric Median and Principal and Independent Components. - Stephen L. Keeling; Karl Kunisch (J. Math. Imaging Vis., 2016)

A convex penalty for switching control of partial differential equations. - Christian Clason; Armin Rund; Karl Kunisch; Richard C. Barnard (Syst. Control. Lett., 2016)

On the Stabilizability of the Burgers Equation by Receding Horizon Control. - Behzad Azmi; Karl Kunisch (SIAM J. Control. Optim., 2016)

Optimal Control of the Undamped Linear Wave Equation with Measure Valued Controls. - Karl Kunisch; Philip Trautmann; Boris Vexler (SIAM J. Control. Optim., 2016)

A Sequential Method for a Class of Stable Mathematical Programming Problems. - Kazufumi Ito; Karl Kunisch (SIAM J. Optim., 2016)

Local Minimization Algorithms for Dynamic Programming Equations. - Dante Kalise; Axel Kröner; Karl Kunisch (SIAM J. Sci. Comput., 2016)

Primal-dual active set strategy for large scale optimization of cardiac defibrillation. - Chamakuri Nagaiah; Karl Kunisch (Appl. Math. Comput., 2017)

Infinite Horizon Sparse Optimal Control. - Dante Kalise; Karl Kunisch; Zhiping Rao (J. Optim. Theory Appl., 2017)

Nonconvex penalization of switching control of partial differential equations. - Christian Clason; Armin Rund; Karl Kunisch (Syst. Control. Lett., 2017)

Feedback Stabilization to Nonstationary Solutions of a Class of Reaction Diffusion Equations of FitzHugh-Nagumo Type. - Tobias Breiten; Karl Kunisch; Sérgio S. Rodrigues (SIAM J. Control. Optim., 2017)

Stabilization by Sparse Controls for a Class of Semilinear Parabolic Equations. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2017)

Optimal Control of Semilinear Parabolic Equations by BV-Functions. - Eduardo Casas; Florian Kruse; Karl Kunisch (SIAM J. Control. Optim., 2017)

Sparse and Switching Infinite Horizon Optimal Control with Nonconvex Penalizations. - Dante Kalise; Karl Kunisch; Zhiping Rao (CoRR, 2018)

Optimal Control of Elliptic Variational-Hemivariational Inequalities. - Zijia Peng; Karl Kunisch (J. Optim. Theory Appl., 2018)

Infinite-Horizon Bilinear Optimal Control Problems: Sensitivity Analysis and Polynomial Feedback Laws. - Tobias Breiten; Karl Kunisch; Laurent Pfeiffer (SIAM J. Control. Optim., 2018)

Polynomial Approximation of High-Dimensional Hamilton-Jacobi-Bellman Equations and Applications to Feedback Control of Semilinear Parabolic PDEs. - Dante Kalise; Karl Kunisch (SIAM J. Sci. Comput., 2018)

Magnetic Resonance RF Pulse Design by Optimal Control With Physical Constraints. - Armin Rund; Christoph S. Aigner; Karl Kunisch; Rudolf Stollberger (IEEE Trans. Medical Imaging, 2018)

On monotone and primal-dual active set schemes for ℓp-type problems, p ∈ (0, 1]. - Daria Ghilli; Karl Kunisch (Comput. Optim. Appl., 2019)

An Optimal Control Approach to Early Stopping Variational Methods for Image Restoration. - Alexander Effland; Erich Kobler; Karl Kunisch; Thomas Pock (CoRR, 2019)

A Tensor Decomposition Approach for High-Dimensional Hamilton-Jacobi-Bellman Equations. - Sergey Dolgov; Dante Kalise; Karl Kunisch (CoRR, 2019)

On a Monotone Scheme for Nonconvex Nonsmooth Optimization with Applications to Fracture Mechanics. - Daria Ghilli; Karl Kunisch (J. Optim. Theory Appl., 2019)

A Hybrid Finite-Dimensional RHC for Stabilization of Time-Varying Parabolic Equations. - Behzad Azmi; Karl Kunisch (SIAM J. Control. Optim., 2019)

Optimal Control of the Two-Dimensional Stationary Navier-Stokes Equations with Measure Valued Controls. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2019)

Total Deep Variation for Linear Inverse Problems. - Erich Kobler; Alexander Effland; Karl Kunisch; Thomas Pock (CVPR, 2020)

Total Deep Variation: A Stable Regularizer for Inverse Problems. - Erich Kobler; Alexander Effland; Karl Kunisch; Thomas Pock (CoRR, 2020)

Variational Networks: An Optimal Control Approach to Early Stopping Variational Methods for Image Restoration. - Alexander Effland; Erich Kobler; Karl Kunisch; Thomas Pock (J. Math. Imaging Vis., 2020)

Analysis of the Barzilai-Borwein Step-Sizes for Problems in Hilbert Spaces. - Behzad Azmi; Karl Kunisch (J. Optim. Theory Appl., 2020)

Robust Feedback Control of Nonlinear PDEs by Numerical Approximation of High-Dimensional Hamilton-Jacobi-Isaacs Equations. - Dante Kalise; Sudeep Kundu; Karl Kunisch (SIAM J. Appl. Dyn. Syst., 2020)

Optimal Feedback Law Recovery by Gradient-Augmented Sparse Polynomial Regression. - Behzad Azmi; Dante Kalise; Karl Kunisch (J. Mach. Learn. Res., 2021)

Neural network based nonlinear observers. - Tobias Breiten; Karl Kunisch (Syst. Control. Lett., 2021)

Optimal Control of the Two-Dimensional Evolutionary Navier-Stokes Equations with Measure Valued Controls. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2021)

Tensor Decomposition Methods for High-dimensional Hamilton-Jacobi-Bellman Equations. - Sergey Dolgov; Dante Kalise; Karl Kunisch (SIAM J. Sci. Comput., 2021)

Boundary Control of Semilinear Parabolic Equations with Non-Smooth Point-wise-Integral Control Constraints in Time-Space*. - Eduardo Casas; Karl Kunisch (ACC, 2022)

Nonlinear motion separation via untrained generator networks with disentangled latent space variables and applications to cardiac MRI. - Abdullah; Martin Holler; Karl Kunisch; Malena Sabate Landman (CoRR, 2022)

Shape Derivative for Penalty-Constrained Nonsmooth-Nonconvex Optimization: Cohesive Crack Problem. - Victor A. Kovtunenko; Karl Kunisch (J. Optim. Theory Appl., 2022)

Mixed and hybrid Petrov-Galerkin finite element discretization for optimal control of the wave equation. - Gilbert Peralta; Karl Kunisch (Numerische Mathematik, 2022)

Total Deep Variation: A Stable Regularization Method for Inverse Problems. - Erich Kobler; Alexander Effland; Karl Kunisch; Thomas Pock (IEEE Trans. Pattern Anal. Mach. Intell., 2022)

Infinite Horizon Optimal Control Problems for a Class of Semilinear Parabolic Equations. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2022)

Latent-Space Disentanglement with Untrained Generator Networks for the Isolation of Different Motion Types in Video Data. - Abdullah Abdullah; Martin Holler; Karl Kunisch; Malena Sabate Landman (SSVM, 2023)

Learning Optimal Feedback Operators and their Sparse Polynomial Approximations. - Karl Kunisch; Donato Vásquez-Varas; Daniel Walter (J. Mach. Learn. Res., 2023)

Improving the Convergence Rates for the Kinetic Fokker-Planck Equation by Optimal Control. - Tobias Breiten; Karl Kunisch (SIAM J. Control. Optim., 2023)

Infinite Horizon Optimal Control Problems with Discount Factor on the State, Part I: Analysis of the Controlled State Equation. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2023)

Infinite Horizon Optimal Control Problems with Discount Factor on the State, Part II: Analysis of the Control Problem. - Eduardo Casas; Karl Kunisch (SIAM J. Control. Optim., 2023)

Optimal polynomial feedback laws for finite horizon control problems. - Karl Kunisch; Donato Vásquez-Varas (Comput. Math. Appl., 2023)

Saturated Feedback Stabilizability to Trajectories for the Schlögl Parabolic Equation. - Behzad Azmi; Karl Kunisch; Sérgio S. Rodrigues (IEEE Trans. Autom. Control., 2023)

Analysis of RHC for Stabilization of Nonautonomous Parabolic Equations Under Uncertainty. - Behzad Azmi; Lukas Herrmann; Karl Kunisch (SIAM J. Control. Optim., 2024)

Policy iteration for Hamilton-Jacobi-Bellman equations with control constraints. - Sudeep Kundu; Karl Kunisch (Comput. Optim. Appl., 2024)

Quasi-Monte Carlo Integration for Feedback Control Under Uncertainty. - Philipp A. Guth; Peter Kritzer; Karl Kunisch (SIAM/ASA J. Uncertain. Quantification, 2025)

Numerical Realization of the Mortensen Observer via a Hessian-Augmented Polynomial Approximation of the Value Function. - Tobias Breiten; Karl Kunisch; Jesper Schröder (SIAM J. Sci. Comput., 2025)

On feedback stabilisation for the Cahn-Hilliard equation and its numerical approximation. - Herbert Egger; Marvin Fritz; Karl Kunisch; Sérgio S. Rodrigues (CoRR, 2025)