Difference between revisions of "Lothar Nannen"

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= Assistant Prof. Dr. Lothar Nannen =
 
 
 
 
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==== Address ====
 
==== Address ====
 
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Institute for Analysis and Scientific Computing <br>
Institute for Analysis and Scientific Computing <br\>
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Wiedner Hauptstrasse 8-10 <br>
Wiedner Hauptstrasse 8-10 <br\>
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Raum DA 03 F22 <br>
Raum DA 03 F22 <br\>
 
 
1040 Wien, Austria  
 
1040 Wien, Austria  
  
Tel: +43 1 58801 10120 <br\>
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[http://www.asc.tuwien.ac.at/~lnannen Homepage]
Email: [mailto:lothar.nannen@tuwien.ac.atNOSPAMPLEASE Lothar Nannen]
 
 
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==== Research Interests ====
 
 
finite element methods, scattering and resonance problems in open systems, transparent boundary conditions
 
 
==== Projects ====
 
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/InfiniteElemente Infinite Elements for exterior Maxwell problems]
 
==== Recent Preprints ====
 
# 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].
 
==== Publications ====
 
# 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].
 
# Halla, M., Hohage, T., Nannen, L., Schöberl, J.  (2015) 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].
 
# 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].
 
# 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].
 
# Halla, M., Hohage, T., Nannen, L., Schöberl, J.  (2013) Hardy space method for waveguides. [http://www.mfo.de/occasion/1248a/www_view 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. [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].
 
# 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].
 
# 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].
 
# 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].
 
# 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].
 
 
==== Other publications  ====
 
* 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]
 
* 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]
 
 
==== Lecture notes  ====
 
* [http://www.asc.tuwien.ac.at/~lnannen/Lectures/Scattering2016/ScatteringProblems.pdf Streu- und Resonanzprobleme], 2016
 
* Numerische Mathematik A/B, erreichbar über [https://tiss.tuwien.ac.at/ TISS],  2015/2016.
 
 
==== Programms  ====
 
 
# [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.
 

Latest revision as of 17:07, 21 August 2017

 

Address

Institute for Analysis and Scientific Computing
Wiedner Hauptstrasse 8-10
Raum DA 03 F22
1040 Wien, Austria

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