Numerical Analysis
As Numerical Analysis and Scientific Computing group we work on numerical methods, mainly for partial differential equations. We are happy about your interest, feel free to contact us! Spokesperson: Jens Lang(WiSe 24/25)
On the research level we develop efficient and robust numerical schemes, for example by means of structure preservation. For such schemes we deal with convergence analysis and both a priori and a posteriori error estimates. In situations of uncertain data we investigate techniques for uncertainty quantification and data assimilation that can be incorporated in numerical schemes. Efficiency can be enhanced by model order reduction as well as adaptivity, both on the level of the model and on the level of the mesh.
Most partial differential equations we work on are coming from compressible fluid dynamics. Applications include for example gas networks, compressible Euler equations and non-Newtonian fluids. Also partial differential equations from other fields such as electrodynamics, geothermics, medicine and biology are considered.
On the other hand for teaching we offer a wide range of courses for students on various aspects of numerical approximation. Notably, we aim for a solid basic education that will be practical and useful for anyone. Building on that, we enjoy offering specialisation in areas with close connections to our research.
2025/05/07,
17:15-19:00
Maximal parabolic regularity for the treatment of real world problems
Mathematisches Kolloquium im Sommersemester 2025
Dr. Joachim Rehberg, WIAS BerlinFirst, we motivate the notion 'maximal parabolic regularity’ as an instrument for the treatment for parabolic equations - linear and nonlinear ones. Then severa…
2025/05/14,
17:15-19:00
Efficient Matrix Assembly and Adaptive Refinement in Isogeometric Analysis
Mathematisches Kolloquium im Sommersemester 2025
Prof. Dr. Bert Jüttler, Johannes Kepler Universität Linz Isogeometric Analysis is a computational framework for numerical simulation, which was introduced by T.J.R. Hughes et al. in 2005 …
2025/05/21,
17:15-19:00
Probabilistic Data Structures in Adversarial Environments
Mathematisches Kolloquium im Sommersemester 2025
Prof. Dr. Marc Fischlin, TU Darmstadt Data structures provide a mechanism to organize data, usually providing methods to insert, delete, and search elements. Probabilistic data structures such as s…
2025/05/28,
17:15-19:00
From inverse problems in PDEs to convex semidefinite optimization
Mathematisches Kolloquium im Sommersemester 2025
Prof. Dr. Bastian von Harrach-Sammet, Goethe Universität Frankfurt Medical diagnosis has been revolutionized by noninvasive imaging methods such as computerized tomography (CT) and magnetic re…
2025/06/11,
17:15-19:00
The effective mass of the Fröhlich polaron at strong coupling
Mathematisches Kolloquium im Sommersemester 2025
Dr. Morris Brooks, Universität Zürich In this talk we investigate the Fröhlich polaron in the strong coupling limit, which is a model describing the interactions of a charged particl…