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Lea Miko Versbach

PhD student, Numerical Analysis


High order discretizations for uncompressible flows. Implicit Discontinuous Galerkin spectral element methods (DG-SEM). Design of new multigrid methods to improve the computational speed of DG-SEM. Space-time DG methods.

Supervised by Philipp Birken and Gregor Gassner.

Teaching assistant


Articles in Scientific Journals

  1. L. Versbach, P. Birken, G. Gassner: Subcell Finite Volume Multigrid Preconditioning for High Order Discontinuous Galerkin Methods, International Journal of Computational Fluid Dynamics (2019), DOI: 10.1080/10618562.2019.1667983


  1. L. Versbach, P. Birken, V. Linders, G. Gassner: Local Fourier Analysis of a Space-Time Multigrid Method for DG-SEM for the Linear Advection Equation, arXiv:2121.03115
  2. L. Versbach, V. Linders, R. Klöfkorn, B. Birken: Theoretical and Practical Aspects of Space-Time DG-SEM Implementations, arXiv:2201.05800

Conference proceedings

  1. L. Versbach, P. Birken, G. Gassner: Finite Volume based multigrid preconditioners for discontinuous Galerkin methods. PAMM 18. DOI: 10.1002/pamm.201800203
  2. P. Birken, G. Gassner and L. Versbach: Multigrid Preconditioners for Space-Time DG for Compressible Flows. WCCM-ECCOMAS2020. DOI: 10.23967/wccm-eccomas.2020.212

Licentiate Thesis 

  • The PDF of my licentiate thesis can be found here.

Dissertation Thesis

  • The PDF of my dissertation thesis can be found here.


Sidansvarig:  | 2022-06-08


Sölvegatan 18

SE-22100 Lund

Room: MH 528

Phone: +46 46 2226811

Email: lea_miko.versbach@math.lu.se