Program — Book of abstracts (PDF)

Chemnitz FE Symposium 2025:   Program

Monday, September 15, 2025
09:00 Opening (Metropole)
Discontinuous Galerkin (Metropole)
Chair: Thomas Apel
09:05 Konstantinos Chrysafinos Discontinuous Galerkin time-stepping schemes for the parabolic p-Laplacian equation   [slides]
09:55 Christian Wieners Localization of the pollution source position with a space-time discontinuous Galerkin method for transport in porous media   [slides]
10:20 Gunar Matthies Higher order hybrid temporal discretizations applied to transient Stokes problems   [slides]
10:45 Coffee Break
Space-Time (Metropole)
Chair: Ira Neitzel		 Preconditioning (Arkade)
Chair: Gundolf Haase
11:15 Richard Löscher On space-time analysis of parabolic problems on tensor product meshes   [slides] Roland Herzog Preconditioned solution of a magnetostatic optimal control problem   [slides]
11:40 Bernhard Endtmayer Anisotropic goal oriented space time adaptivity applied to convection diffusion reaction equation   [slides] Matti Schneider FFT-based preconditioning of X-FEM systems in computational homogenization   [slides]
12:05 Ioannis Toulopoulos An anisotropic error estimate for SUPG space-time finite element methods   [slides] Stephan Köhler Multilevel Overlapping Schwarz Preconditioners for Fluid Problems
12:30 Lunch Break
Stokes I (Metropole)
Chair: Gunar Matthies		 Mixed Discretizations (Arkade)
Chair: Fleurianne Bertrand
13:30 Johannes Pfefferer Numerical analysis for the Stokes problem with non-homogeneous Dirichlet boundary conditions. Part 1: Weak solutions   [slides] Tugay Dagli Adaptive Mixed Finite Element Method for Stress-Based Formulations of Eigenvalue Problems
13:55 Katharina Lorenz Discretizaion of the Stokes Problem with non-homogeneous Dirichlet boundary conditions. Part 2: Very weak solutions   [slides] Amireh Mousavi Numerical methods for stochastic non-divergence form elliptic PDEs: a mixed finite element perspective   [slides]
14:20 Michael Reichelt A Space-Time Tensor-Product Finite Element Method for the Stokes System   [slides] Marialetizia Mosconi New Crouzeix-Raviart spaces of even and variable order
14:55 Tobias Kaltenbacher A Simplicial Space-Time Finite Element Method for the Stokes System   [slides] Alexander Linke Refined stability estimates for mixed problems by exploiting semi norm arguments   [slides]
15:20 Coffee Break
Stokes II (Metropole)
Chair: Max Winkler		 Applications (Arkade)
Chair: Sven Beuchler
15:50 Jonas Glatzel Quasi-optimal and pressure robust methods for the instationary Stokes equations   [slides] Shahin Heydari Modeling and numerical study on a collection of strongly coupled chemotaxis-fluid systems
16:15 Mayssa Mroueh Non-Polynomial Discontinuous Galerkin Discretization for Navier-Stokes Problems Christos Pervolianakis A priori and a posteriori error analysis of an algebraic flux correction scheme for an optimal control problem   [slides]
16:40 Manoj Prakash Computation of stabilization parameters by deep learning   [slides]
17:30 Break
17:45 Before Dinner Talk
18:30 Conference Dinner
Tuesday, September 16, 2025
Optimal Control I (Metropole)
Chair: Arnd Rösch
09:00 Ira Neitzel On optimal control problems with quasilinear parabolic PDE and additional inequality constraints
09:50 Fredi Tröltzsch Second order analysis for the optimization of time delays   [slides]
Poster Presentation (Metropole)
Chair: Sven Beuchler
10:15 Fleurianne Bertrand Equilibration Based A-Posteriori Error Estimation for Poroelasticity   [slides]
10:20 Coffee Break + Poster Discussion
Optimal Control II (Metropole)
Chair: Roland Herzog
10:50 Olaf Steinbach State-based nested iteration solution of optimal control problems with PDE constraints   [slides]
11:15 Max Winkler A stochastic Galerkin method for Dirichlet control problems with random input   [slides]
11:40 Harpal Singh Adaptive Embedded DG Methods for Optimal Control of Oseen Equations   [slides]
12:05 Lunch Break
13:00 Excursion
18:00 SC Meeting
Wednesday, September 17, 2025
Numerical Analysis (Metropole)
Chair: Olaf Steinbach
09:00 Christian Kreuzer Accurate error bounds and applications in the error analysis of finite element methods   [slides]
09:50 Thomas Apel Discretization error estimates for Isogeometric Analysis and domains with corners   [slides]
10:15 Coffee Break
Shape Optimization (Metropole)
Chair: Roland Herzog		 Fractional PDEs (Scala)
Chair: Johannes Pfefferer
10:45 Laura Hetzel Constrained L^p Approximation of Shape Tensors and its role for the determination of shape gradients   [slides] Reza Mokhtari Solving Time-Fractional Backward Heat Conduction Problems Using Physics-Informed Kolmogorov-Arnold Networks   [slides]
11:10 Hamdullah Yücel An Adaptive Finite Element Procedure for Shape Optimization Problems   [slides] Felix Beer The Time-Fractional Cauchy Problem   [slides]
11:40 Closing
12:00 Lunch