The Lagrange-Newton method for nonlinear optimal control problems. - Walter Alt; Kazimierz Malanowski (Comput. Optim. Appl., 1993)

An implicit-function theorem for a class of monotone generalized equations. - Walter Alt; Iosif Kolumbán (Kybernetika, 1993)

The Lagrange-Newton method for state constrained optimal control problems. - Walter Alt; Kazimierz Malanowski (Comput. Optim. Appl., 1995)

Mesh-Independence of the Lagrange-Newton Method for Nonlinear Optimal Control Problems and their Discretizations. - Walter Alt (Ann. Oper. Res., 2001)

Finite-difference discretizations of quadratic control problems governed by ordinary elliptic differential equations. - Walter Alt; Nils Bräutigam (Comput. Optim. Appl., 2009)

Regularization of Linear-Quadratic Control Problems with L^1 -Control Cost. - Christopher Schneider; Walter Alt (System Modelling and Optimization, 2013)

Improved Error Estimate for an Implicit Discretization Scheme for Linear-Quadratic Control Problems with Bang-Bang Solutions. - Walter Alt; Martin Seydenschwanz (LSSC, 2013)

An implicit discretization scheme for linear-quadratic control problems with bang-bang solutions. - Walter Alt; Martin Seydenschwanz (Optim. Methods Softw., 2014)

Regularization and implicit Euler discretization of linear-quadratic optimal control problems with bang-bang solutions. - Walter Alt; Christopher Schneider; Martin Seydenschwanz (Appl. Math. Comput., 2016)

Dualization and discretization of linear-quadratic control problems with bang-bang solutions. - Walter Alt; C. Yalçin Kaya; Christopher Schneider (EURO J. Comput. Optim., 2016)

Euler discretization for a class of nonlinear optimal control problems with control appearing linearly. - Walter Alt; Ursula Felgenhauer; Martin Seydenschwanz (Comput. Optim. Appl., 2018)