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Lambert Theisen Lehr- und Forschungsgebiet Mathematik, insb. Computational Mathematics Lehrstuhl für Angewandte und Computergestützte Mathematik RWTH Aachen University, Rogowski Gebäude, Raum 229, Schinkelstraße 2, 52062 Aachen Tel: +49 241 80-98671; Mobil: +49 241 80-98686; E-Mail: theisen(at)acom.rwth-aachen.de Web: https://thsn.dev
Researching PDE eigenvalue problems, asymptotic analysis of expanding domains, directional homogenization, preconditioners for eigenvalue algorithms, preconditioners for linear solvers, spectral coarse spaces for domain decomposition, and Galerkin methods for moment models in rarefied gas modelling.
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A Quasi-Optimal Factorization Preconditioner for Periodic Schrödinger Eigenstates in Anisotropically Expanding DomainsSIAM Journal on Numerical Analysis, 2022, 60 (5), pp.2508-2537. ⟨10.1137/21M1456005⟩
Article dans une revue
hal-04671832
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fenicsR13: A Tensorial Mixed Finite Element Solver for the Linear R13 Equations Using the FEniCS Computing PlatformACM Transactions on Mathematical Software, 2021, 47 (2), pp.1-29. ⟨10.1145/3442378⟩
Article dans une revue
hal-04671360
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A Scalable Two-Level Domain Decomposition Eigensolver for Periodic Schrödinger Eigenstates in Anisotropically Expanding Domains2024
Pré-publication, Document de travail
(preprint/prepublication)
hal-04671835
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