Lambert Theisen

Lambert Theisen
RWTH Aachen University · Chair of Applied and Computational Mathematics

Master of Science
Feel free to contact me :-)

About

5
Publications
495
Reads
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5
Citations
Citations since 2017
5 Research Items
5 Citations
20172018201920202021202220230.00.51.01.52.02.53.0
20172018201920202021202220230.00.51.01.52.02.53.0
20172018201920202021202220230.00.51.01.52.02.53.0
20172018201920202021202220230.00.51.01.52.02.53.0
Introduction
Combination of Computational Engineering, Mathematics and Software Engineering with Coffee ☕️ Please contact me directly for more information or visit my personal webpage 🙂 http://www.mathcces.rwth-aachen.de/5people/theisen/start
Additional affiliations
October 2019 - May 2021
RWTH Aachen University
Position
  • Research Assistant
Description
  • See homepage http://www.mathcces.rwth-aachen.de/5people/theisen/start
September 2018 - October 2019
RWTH Aachen
Position
  • Research Assistant
Description
  • Teaching for: - Mathematische Grundlagen IV (CES) @ MathCCES, RWTH Aachen - WS18/19: Partielle Differentialgleichungen (CES) @ MathCCES, RWTH Aachen
Education
April 2018 - September 2019
RWTH Aachen University
Field of study
  • Computational Engineering Science (CES) Master
October 2014 - April 2018
RWTH Aachen University
Field of study
  • Computational Engineering Science (CES) Bachelor

Publications

Publications (5)
Article
Full-text available
This paper provides a provably quasi-optimal preconditioning strategy of the linear Schrödinger eigenvalue problem with periodic potentials for a possibly non-uniform spatial expansion of the domain. The quasi-optimality is achieved by having the iterative eigenvalue algorithms converge in a constant number of iterations for different domain sizes....
Preprint
Full-text available
This paper provides a provably optimal preconditioning strategy of the linear Schrödinger eigenvalue problem with periodic potentials for a possibly non-uniform spatial expansion of the domain. The optimality is achieved by having the iterative eigenvalue algorithms converge in a constant number of iterations with respect to different domain sizes....
Article
Full-text available
We present a mixed finite element solver for the linearized regularized 13-moment equations of non-equilibrium gas dynamics. The Python implementation builds upon the software tools provided by the FEniCS computing platform. We describe a new tensorial approach utilizing the extension capabilities of FEniCS’ Unified Form Language to define required...
Preprint
We present a mixed finite element solver for the linearized R13 equations of non-equilibrium gas dynamics. The Python implementation builds upon the software tools provided by the FEniCS computing platform. We describe a new tensorial approach utilizing the extension capabilities of FEniCS's Unified Form Language (UFL) to define required differenti...

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Projects

Project (1)
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