Monday, September 11, 2023 
09:00 
Opening 

Solvers Chair: Ulrich Langer 
09:10 
David Keyes 
Nonlinear Preconditioning for Implicit Solution of Discretized PDEs

10:00 
Coffee Break 

Solvers Chair: Ulrich Langer 
CFD/DG Chair: Roland Herzog 
10:30 
Christian Döding 
Numerical approximation of nonlinear Schrödinger equations by localized orthogonal decomposition

Ernesto Castillo 
Reduced order modeling of timedependent generalized Newtonian fluid flows

10:55 
Peter Munch 
Optimizing multigrid smoothers for highorder matrixfree FEM computations

Gert Lube 
H(div)conforming dGFEM for turbulent incompressible wallbounded NavierStokes flows

11:20 
Tim Haubold 
High order biorthogonal basis functions

Gunar Matthies 
Higher order discontinuous Galerkin methods in time and pressurerobust finite element discretizations applied to timedependent Stokes problems

11:45 
Douglas Ramalho Queiroz Pacheco 
IMEX methods for incompressible flows with variable viscosity

Marwa Zainelabdeen 
An Optimally Convergent ConvectionStabilized Taylor–Hood Finite Element Method for the Oseen Equations

12:10 
Lunch Break 

Parallel in Time Chair: Gundolf Haase 
13:30 
Martin J. Gander 
Good Parallel in Time Methods for Hyperbolic Problems

14:20 
Poster SetUp / Room Change 

Poster Pitches Chair: Fleurianne Bertrand 
14:30 
Lina Fesefeldt 
Choosing starting vectors for Newton's method in nonlinear elasticity

14:32 
Daniel Bauer 
Multigrid in H(curl) on Hybrid Tetrahedral Grids

14:34 
Fabian Böhm 
Matrixfree Implementation and Evaluation of the Enriched Galerkin Finite Element Method for the Stokes Problem with Varying Viscosity

14:36 
PierreAlain Goulm 
Pairing RaviartThomas elements with conforming nodal elments in mixed finite element dicretizations

14:40 
Coffee Break + Poster Discussion 

Applications & Optimal Control Chair: Barbara Kaltenbacher 
SpaceTime Chair: Martin J. Gander 
15:10 
Roland Herzog 
Total Generalized Variation with Finite Elements and Applications

Günther Of 
A SpaceTime Fast Boundary Element Method for the Heat Equation with Temporal Nearfield Compression

15:35 
Richard Schussnig 
Matrixfree Discontinuous Galerkin Solvers for the Cardiovascular System

Bernhard Endtmayer 
Space Time Dual Weighted Residual Error Estimation

16:00 
Max Winkler 
A finite volume method for transport induced neurite growth

Janosch Preuss 
Unique continuation for the wave equation using a discontinuous Galerkin time discretization

16:25 
Mahima Yadav 
On discrete ground states of rotating BoseEinstein condensates

Sebastian Franz 
Postprocessing and improved error estimates of numerical methods for evolutionary systems

17:00 
Guided Tour of the Wine Cellar 
18:30 
Dinner 
20:00 
Meeting Scientific Committee 
Tuesday, September 12, 2023 

Inverse Problems Chair: Helmut Harbrecht 
09:00 
Barbara Kaltenbacher 
Optimization based formulation and solution of inverse problems

09:50 
Coffee Break 

Machine Learning / Optimal Control Chair: Olaf Steinbach 
Solvers / FEMBEM Chair: Gunar Matthies 
10:20 
Nils Margenberg 
Benchmarking Hybrid Finite Element/Deep Neural Networks and Classical Finite Element Methods

Stephan Köhler 
Nonlinear FETIDP and QuasiNewton Methods

10:45 
Reza Mokhtari 
Deep learning approaches based on HDG method for solving some nonlinear elliptic equations

Helmut Harbrecht 
Isogeometric multilevel quadrature for forward and inverse random acoustic scattering

11:10 
Philipp Zilk 
Identifying cracks in membranes via their eigenfrequencies  A theoretical and practical approach

Max Brockmann 
Solving Elliptic Partial Differential Equations on Metric Graphs using Multigrid Methods

11:35 
Thomas Apel 
Noncoercive boundary value problems

Muhammad Tayyab Bin Saghir 
Finite Element Simulation for Elastic and Plastic Fluids

12:00 
Ulrich Langer 
Masslumping discretization and solvers for distributed elliptic optimal control problems with L2regularization

Joachim Schöberl 
Finite Element Methods for Curvature Computation

12:25 
Group Photo 
12:35 
Lunch Break 
14:00 
Excursion to Kogelberg 
17:00 
Return 
18:30 
Conference Dinner 
Wednesday, September 13, 2023 

Algebraic Multigrid Methods Chair: Joachim Schöberl 
09:00 
Yvan Notay 
Algebraic multigrid for finite element discretizations

09:50 
Coffee Break 

Numerical Analysis Chair: Thomas Apel 
Scientific Computing Chair: Yvan Notay 
10:20 
Olaf Steinbach 
Adaptive leastsquares spacetime finite element methods

Max Firmbach 
Physicsbased block preconditioning for mixed dimensional beam/solid coupling

10:45 
Fleurianne Bertrand 
On the necessity of the infsup condition for a mixed finite element formulation

Mohadese Ramezani 
Solving fractional Burgers equations using the HopfCole transformation and local discontinuous Galerkin method

11:10 
Harald Monsuur 
A pollutionfree ultraweak FOSLS discretization of the Helmholtz equation

Deepika Garg 
Implicitexplicit time discretization for Oseen's equation at high Reynolds number with application to fractional step methods

11:35 
Johanna Beier 
Derivation and simulation of thermoelastic Kirchhoff plates

Henrik Schneider 
LeastSquares Finite Element Methode for a nonlinear SeaIce problem

12:00 
Closing 
12:15 
Lunch 
13:30 
Conference End 