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Mario Ohlberger

Sinta Maria Sibby (Universität Münster): A Robust Overlapping Schwarz Preconditioner for Nearly Incompressible Hyperelasticity

Tuesday, 07.10.2025 14:00 im Raum SR 120.029

Mathematik und Informatik

The finite element discretization of nearly incompressible hyperelasticity problem for modelling soft-tissue mechanics leads to a large-scale nonlinear system, which is typically linearized using Newton?s method and solved iteratively. The stiffness matrix generated at each Newton iteration is a highly ill-conditioned linear system and the large number of degrees of freedom in realistic simulations often impact the efficiency of standard linear solvers, making effective and robust preconditioning essential. In this talk, I will present a robust condition number estimate for the performance of two-level overlapping Additive Schwarz preconditioners with the Extended Nicolaides coarse space for the above problem and also illustrate a few numerical results.



Angelegt am 08.09.2025 von Mario Ohlberger
Geändert am 16.09.2025 von Mario Ohlberger
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Angewandte Mathematik Münster
Oberseminar Numerik