Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

 Siegel der Universität Augsburg

 

Analysis-Seminar Augsburg-München

 

Professor Dr. Winnifried Wollner
Universität Hamburg
 
spricht am
 
Donnerstag, 30. Januar 2025
 
um
 
15:00 Uhr
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»Gradient-robustness in the context of optimal control«

Abstract:
The talk discusses the benefits of gradient-robust discretizations in the scope of optimal control of incompressible flows. Here, gradient forces appearing in the data can have a negative impact on the accuracy of state and control and can only be correctly balanced if their L²-orthogonality onto discretely divergence-free test functions is restored. Perfectly orthogonal divergence-free discretizations or divergence-free reconstructions of these test functions do the trick and lead to much better analytic a priori estimates that are also validated in numerical examples.

This is joint work with Christian Merdon (WIAS).


 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Malte Peter


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