Difference between revisions of "Lothar Nannen"
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Revision as of 13:14, 28 June 2017
AddressInstitute for Analysis and Scientific Computing Tel: +43 1 58801 10120 |
Research Interests
finite element methods, scattering and resonance problems in open systems, transparent boundary conditions
Projects
Recent Preprints
- Halla, M., Nannen, L. (2016) Two scale Hard space infinite elements for scalar waveguide problems. ASC-Preprint No. 17/2016.
- Nannen, L., Wess, M. (2016) Spurious modes of the complex scaled Helmholtz Equation. ASC-Preprint No. 15/2016.
Publications
- Halla, M., Hohage, T., Nannen, L., Schöberl, J. (2016) Hardy Space Infinite Elements for Time Harmonic Wave Equations with Phase and Group Velocities of Different Signs. Numerische Mathematik, 133(1): 103-139 online.
- Halla, M., Nannen, L. (2015) Hardy space infinite elements for time-harmonic two-dimensional elastic waveguide problems. Wave Motion, online, abstract.
- Hohage, T., Nannen, L. (2015) Convergence of infinite element methods for scalar waveguide problems. BIT Numerical Mathematics, 55(1):215-254, online.
- Nannen, L. , Hohage, T. , Schädle, A., Schöberl. J. (2013). Hardy space method for exterior Maxwell problems. Oberwolfach Report.
- Halla, M., Hohage, T., Nannen, L., Schöberl, J. (2013) Hardy space method for waveguides. Oberwolfach Report.
- Nannen, L. , Hohage, T. , Schädle, A., Schöberl. J. (2013). Exact Sequences of High Order Hardy Space Infinite Elements for Exterior Maxwell Problems. SIAM J. Scientific Computing, 35(2): A1024-A1048. online, arxiv, extended abstract.
- Hein, S., Koch, W., Nannen, L. (2012). Trapped modes and Fano resonances in two-dimensional acoustical duct-cavity systems. Journal of Fluid Mechanics, 692:257-287. online.
- Nannen, L., Schädle, A. (2011). Hardy space infinite elements for Helmholtz-type problems with unbounded inhomogeneities. Wave Motion, 48(2):116-129. online.
- Hein, S., Koch, W., Nannen, L. (2010). Fano resonances in acoustics. Journal of Fluid Mechanics, 664:238-264. online.
- Hohage, T., Nannen, L. (2009). Hardy space infinite elements for scattering and resonance problems. SIAM J. Num. Analysis, 47:972-996. online.
Other stuff
- High order transparent boundary conditions for the Helmholtz equation. Survey of PML and HSM for Helmholtz scattering problems
- Hardy-Raum Methoden zur numerischen Lösung von Streu- und Resonanzproblemen auf unbeschränkten Gebieten. PhD thesis, Universität Göttingen, Der Andere Verlag, ISBN 978-3-89959-742-4. online
Lecture notes
- Streu- und Resonanzprobleme, 2016
- Numerische Mathematik A/B, erreichbar über TISS, 2015/2016.