@article {IOPORT.05896717, author = {Grossmann, Christian}, title = {Penalties, Lagrange multipliers and Nitsche mortaring.}, year = {2010}, journal = {Discussiones Mathematicae. Differential Inclusions, Control and Optimization}, volume = {30}, number = {2}, issn = {1509-9407}, pages = {205-220}, publisher = {University of Zielona G\'ora Press, Zielona G\'ora}, doi = {10.7151/dmdico.1120}, abstract = {Penalty methods, augmented Lagrangian methods and Nitsche mortaring are known numerical methods for optimization and finite elements, respectively. The aim of the paper is to describe this methods from the optimization point of view. Some numerical results for a simple test problem are given.}, reviewer = {Hans Benker (Merseburg)}, identifier = {05896717}, }