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− | __NOTOC__ __NOTITLE__ | + | __NOTOC__ {{DISPLAYTITLE: Associate Prof. Dr. Lothar Nannen}} |
− | = Assistant Prof. Dr. Lothar Nannen =
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− | | <html> <img src="http://num.math.uni-goettingen.de/nannen/images/nannen.JPG" width="120"> </html> | + | | <html> <img src="http://www.asc.tuwien.ac.at/~lnannen/nannen.JPG" width="160"> </html> |
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| ==== Address ==== | | ==== Address ==== |
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| Institute for Analysis and Scientific Computing <br> | | Institute for Analysis and Scientific Computing <br> |
| Wiedner Hauptstrasse 8-10 <br> | | Wiedner Hauptstrasse 8-10 <br> |
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| 1040 Wien, Austria | | 1040 Wien, Austria |
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− | Tel: +43 1 58801 10120 <br>
| + | [http://www.asc.tuwien.ac.at/~lnannen Homepage] |
− | Email: [mailto:lothar.nannen@tuwien.ac.atNOSPAMPLEASE Lothar Nannen]
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− | ==== Research Interests ====
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− | finite element methods, scattering and resonance problems in open systems, transparent boundary conditions
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− | ==== Projects ====
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− | * [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/InfiniteElemente Infinite Elements for exterior Maxwell problems]
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− | ==== Recent Preprints ====
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− | * Halla, M., Nannen, L. (2016) Two scale Hard space infinite elements for scalar waveguide problems. [http://www.asc.tuwien.ac.at/preprint/2016/asc17x2016.pdf ASC-Preprint No. 17/2016].
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− | * Nannen, L., Wess, M. (2016) Spurious modes of the complex scaled Helmholtz Equation. [http://www.asc.tuwien.ac.at/preprint/2016/asc15x2016.pdf ASC-Preprint No. 15/2016].
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− | ==== Publications ====
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− | # 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 [http://dx.doi.org/10.1007/s00211-015-0739-0 online].
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− | # Halla, M., Nannen, L. (2015) Hardy space infinite elements for time-harmonic two-dimensional elastic waveguide problems. Wave Motion, [http://dx.doi.org/10.1016/j.wavemoti.2015.08.002 online], [http://www.asc.tuwien.ac.at/~lnannen/Downloads/abstract_HSM_2d_elastic_waveguide.pdf abstract].
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− | # Hohage, T., Nannen, L. (2015) Convergence of infinite element methods for scalar waveguide problems. BIT Numerical Mathematics, 55(1):215-254, [http://link.springer.com/article/10.1007%2Fs10543-014-0525-x online].
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− | # Nannen, L. , Hohage, T. , Schädle, A., Schöberl. J. (2013). Hardy space method for exterior Maxwell problems. [http://www.mfo.de/occasion/1304/www_view Oberwolfach Report].
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− | # Halla, M., Hohage, T., Nannen, L., Schöberl, J. (2013) Hardy space method for waveguides. [http://www.mfo.de/occasion/1248a/www_view Oberwolfach Report].
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− | # 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. [http://dx.doi.org/10.1137/110860148 online], [http://arxiv.org/abs/1103.2288 arxiv], [http://num.math.uni-goettingen.de/nannen/downloads/Paper/Maxwell_short.pdf extended abstract].
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− | # 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. [http://dx.doi.org/10.1017/jfm.2011.509 online].
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− | # Nannen, L., Schädle, A. (2011). Hardy space infinite elements for Helmholtz-type problems with unbounded inhomogeneities. Wave Motion, 48(2):116-129. [http://dx.doi.org/10.1016/j.wavemoti.2010.09.004 online].
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− | # Hein, S., Koch, W., Nannen, L. (2010). Fano resonances in acoustics. Journal of Fluid Mechanics, 664:238-264. [http://dx.doi.org/doi:10.1017/S0022112010003757 online].
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− | # Hohage, T., Nannen, L. (2009). Hardy space infinite elements for scattering and resonance problems. SIAM J. Num. Analysis, 47:972-996. [http://dx.doi.org/10.1137/070708044 online].
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− | ==== Other stuff ====
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− | * High order transparent boundary conditions for the Helmholtz equation. [http://www.asc.tuwien.ac.at/~lnannen/Downloads/Helmholtz_TBC.pdf Survey of PML and HSM for Helmholtz scattering problems]
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− | * 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. [http://num.math.uni-goettingen.de/picap/pdf/E630.pdf online]
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− | ==== Lecture notes ====
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− | * [http://www.asc.tuwien.ac.at/~lnannen/Lectures/Scattering2016/ScatteringProblems.pdf Streu- und Resonanzprobleme], 2016
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− | * Numerische Mathematik A/B, erreichbar über [https://tiss.tuwien.ac.at/ TISS], 2015/2016.
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− | ==== Programms ====
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− | * [http://sourceforge.net/projects/ngs-waves/develop ngs-waves]: Add-on to the finite element package [http://sourceforge.net/projects/ngsolve/ ngsolve] for acoustic and electromagnetic scattering and resonance problems.
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