Seminar for Applied Mathematics

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Talks

  1. Discrete Compactnesss for $p$-Version Finite Elements, Numerics and Mathematical Analysis for Singularities and Eigenvalue Problems, external page IRMAR, Rennes, France, August 2, 2017
  2. Boundary Integral Equations on Complex Screens, external page Workshop on Wave Propagation in Complex Domains, University College London, March 30, 2017
  3. Exterior Shape Calculus, external page WS on Computational Inverse Problems for Partial Differential Equations, MFO, Oberwolfach, Germany, May 15, 2017
  4. First-Kind Boundary Element Methods for Hodge-Laplacians, external page Waves diffracted by Patrick Joly, Gif-sur-Yvette, France, AUGUST 28, 2017
  5. Operator Preconditioning: Theory and Applications, ACOMEN 2017 Conference, Gent, Belgium, September 18, 2017
  6. Second-Kind Boundary Integral Equations for Electromagnetic Scattering at Composite Objects, external page RICAM Workshop on Analysis and Numerics of Acoustic and Electromagnetic Problems, Linz, Austria, Oct 17-20, 2016.
  7. Multi-trace boundary element methods, 14th International Conference on Integral Methods in Science and Engineering, ISEM, Padova, Italy, July 25-29, 2016.
  8. Operator Preconditioning on Screens, 8th Singular Day, Nancy, France, June 27-30, 2016.
  9. Auxiliary Space Precondtioning for Edge Elements, EMF 2016 (10th International Symposium on Electric and Magnetic Fields), Lyon, France, April 12-14, 2016.
  10. Second-kind Single-Trace Boundary Integral Equations, external page Workshop on New Trends in Integral Equations, Ecole Polytechnique, Palaiseau, France, Feb 4-5, 2016.
  11. Discretizing the Advection of Differential Forms, BIRS Workshop on Computational and Numerical Analysis of Transient Problems in Acoustics, Elasticity, and Electromagnetism, Banff, Canada, Jan 18-22, 2016.
  12. Plane Wave Discontinuous Galerkin Methods, Computational Seismology Workshop, Tsinghua Sanya International Mathematics Forum (TSIMF), Jan 4-8, 2016.
  13. Discretizing the Advection of Differential Forms, external page Workshop on Advances in DG and Related Issues, International Academic Forum Heidelberg, Dec 14-16, 2015.
  14. Plane Wave Discontinuous Galerkin Methods, Plenary lecture at the International Conference on Numerical Partial Differential Equations and Their Applications, Wuhan, China, May 25-29, 2015.
  15. Discretization of Advection-Diffusion of Magnetic Fields, IMA Special Workshop Structure-Preserving Discretizations of Partial Differential Equations Minneapolis, October 22-24, 2014.
  16. Multiple Point Evaluation on Combined Tensor Product Supports, external page 3rd Workshop on Sparse Grids and Applications, University of Stuttgart Germany Sep 1-5, 2014.
  17. Plane Wave Discontinuous Galerkin Methods, external page EPSRC-LMS Durham Symposium "Building bridges: connections and challenges in modern approaches to numerical partial differential equations", Durham, UK, July 8-16, 2014
  18. Maxwell's Equations: Continuous and Discrete , 7 hour short course as part of CIME program on Computational Electroamgnetics, June 9-14, 2014, Cetraro, Italy.
  19. Continuous and Discrete Helmholtz-type Decompositions, CIRM International Conference on Fluid dynamics and electromagnetism: theory and numerical approximation Levico Terme, Italy, June 3-6, 2014.
  20. Operator preconditioning for boundary elements on curves ICMS Workshop on Boundary Integral Equations: Analysis and Computation Edinburgh, May 27-29, 2014.
  21. Discretizing the Advection of Differential Forms, ICERM, Providence, RI, May 12-16, 2014.
  22. Self-adjoint Curl Operators, external page Oberwolfach Workshop on the Numerical Solution of PDE Eigenvalue Problems, MFO Oberwolfach, Nov 17-23, 2013.
  23. Boundary Integral Equations on Complex Screens, external page Journees Singulieres Augment\'ees 2013, Conf\'erence en l'honneur de Martin Costabel, Rennes, France, Aug 26-30, 2013.
  24. Discretization of Advection-Diffusion of Magnetic Fields, IFIP, WIAS Berlin, May 13 - 17, 2013.
  25. Sparse Tensor Edge Elements, Plenary lecture at external page FOURTH CHILEAN WORKSHOP ON NUMERICAL ANALYSIS OF PARTIAL DIFFERENTIAL EQUATIONS (WONAPDE), Universidad de Concepcion, Concepcion, Chile, January 14 - 18, 2013.
  26. Cut-off Estimates For Non-Local Trace Norms, external page FIRST Workshop on Non-Local Problems, Universität Zürich, Dec 12-14, 2012.
  27. Continuous and Discrete Helmholtz-type decompositions, external page Swiss-Japanese Seminar, Universität Zürich, Dec 17-19, 2012.
  28. Sparse Tensor Edge Elements, external page Oberwolfach Mini-Workshop on Efficient and Robust Approximation of the Helmholtz Equation, MFO Oberwolfach, Nov 26-30, 2012.
  29. Multi-Trace Boundary Element Methods, 21st International Conference on Domain Decomposition Methods, 25-29 June 2012, INRIA Rennes, France, external page video.
  30. Novel Boundary Element Methods for Scattering at Composite Objects Workshop on Boundary value problems for linear elliptic and integrable PDEs: Theory and computation, ICMS Edinburgh, May 28 - June 1, 2012
  31. Novel Boundary Element Methods for Scattering at Composite Objects Workshop on Wave Propagation in Complex Media and Applications, Heraklion, Crete, May 7-12, 2012.
  32. Convergence of hp-BEM for the Electric Field Integral Equation, Workshop on High-Order Numerical Approximation for Partial Differential Equations, Haussdorff Institute for Mathematics, Bonn, Germany, Feb 6-10, 2012.
  33. Sparse Adaptive Finite Elements for Radiative Transfer, external page Segundo Encuentro de la Matematica y sus Aplicaciones, Valparaiso, Chile, Jan 19-20, 2012.
  34. Boundary Element Methods for Eddy Current Computation, 2nd CI2MA Focus Seminar "Computational Electromagnetics", Universidad de Concepcion, Chile, Jan 5, 2012.
  35. Convergence of Truncated T-matrix approximation, Workshop on Wave Propagation and Scattering, Inverse Problems and Applications, RICAM, Linz, November 21-25, 2011.
  36. Operator preconditioning, Workshop on Numerical Electromagnetics and Industrial Applications (NELIA 2011), October 25 - 28, 2011, Faculty of Mathematics, Universidade de Santiago de Compostela, Spain.
  37. (Multilevel) preconditioning for Boundary Element Methods First China Workshop on Algebraic Multigrid Methods, Kunming, Yunnan, China, August 1-10, 2011.
  38. Frequency domain boundary element methods, 7th Workshop on Numerical Methods for Optical Nano Structures, ETH Zürich, July 4-6, 2011.
  39. Multilevel Preconditioning for Boundary Element Methods, Oberwolfach workshop on Fast Solvers for Partial Differential Equations, May 26-30, 2011, Oberwolfach, Germany.
  40. Sparse Adaptive Tensor Product Methods for Radiative Transfer, Workshop on Sparse Grids and Applications, Hausdorff Research Institute for Mathematics, Bonn, May 16-20, 2011.
  41. Sparse Adaptive Tensor Product Methods for Radiative Transfer, ESF-INI Conference on the Theory of Highly Oscillatory Problems: From Theory to Applications. Sep 13-17 2010, Isaac Newton Institute, Cambridge.
  42. Plane wave discontinuous Galerkin methods, Workshop on non-standard numerical methods for PDEs, Pavia, June 29-July 2, 2010.
  43. Operator preconditioning, GAMM Workshop on Applied and Numerical Linear Algebra, ETH Zürich, Sep 10-11, 2009.
  44. Discrete Lie Derivatives: Semi-Lagrangian Approach, Converence on Mathematical Physics and PDEs, Levico Terme, Italy, Sep 6-11, 2009.
  45. Theory of "good" and "bad" meshes, Rüdlinger Tagung 2009 der ZHAW, Rüdlingen, Aug 31 - Sep 1, 2009.
  46. Discrete Compactness for Spectral Edge Elements, talk at Oberwolfach conference on Linear and Nonlinear Eigenproblems for PDEs, August 9-15, 2009.
  47. Discrete Regular Decompositions, invited plenary lecture at 23rd Biennial Conference on Numerical Analysis, June 23rd - 26th 2009, University of Strathclyde, Glasgow, Scotland, UK.
  48. Operator preconditioning, invited lecture at the Conference on Compatible and Innovative Discretizations for Partial Differential Equations. Algorithms, analysis, and implementation on the occasion of Ragnar Winther¢s 60th birthday, Oslo, Norway, June 17-19, 2009.
  49. Regularized Combined Field Integral Equations, invited plenary lecture at the 9th International Conference on Mathematical and Numerical Aspects of Waves Propagation, 15th-19th June 2009, Pau, France.
  50. Plane Wave Discontinuous Galerkin Methods, invited lecture at 5th workshop of Advanced Computational Electromagnetism (ACE), January 12-15, 2009, Rome.
  51. Continuous and discrete Helmholtz decompositions, invited semiplenary lecture at Foundations of Computational Mathematics Conference, Workshop B4 on Foundations of Numerical PDEs, Hong Kong, June 6-26, 2008.
  52. BEM for Electromagnetics: Topological Issues, invited lecture at the workshop 'BEM on the Saar 2008', May 26-29, 2008, Saarbruecken, Germany.
  53. Robust Maxwell Formulations, talk at Oberwolfach Conference on Fast Solvers for PDE, May 19-23, 2008.
  54. Multi-dielectric Electromagnetic Scattering, talk at Oberwolfach Conference on Analysis of Boundary Element Methods, April 13-19, 2008.
  55. Discrete Electromagnetism, Invited plenary lecture at the GAMM Annual Meeting 2008, Bremen, March 31 - April 4, 2008.
  56. Plane Wave Discontinuous Galerkin Methods, Workshop on High-order methods for computational wave propagation and scattering, American Institute of Mathematics (AIM), Palo Alto, CA, Sep 10-14,2007.
  57. Galerkin boundary element methods, 3rd Workshop on Numerical Methods for Optical Nano Structures, ETH Zurich, July 9-19, 2007.
  58. Plane wave discontinuous Galerkin methods, workshop on "Effective computational methods for highly oscillatory problems: The interplay between mathematical theory and applications" at Isaac Newton Institute, Cambridge, UK, July 1-5, 2007.
  59. Excitation, 4th workshop on Advanced Computational Electromagnetics (ACE'07), Aachen, Germany, Jun 28-Jun 30, 2007.
  60. Coupling techniques for wave propagation, workshop "The Future of Computational Acoustics", Isaac Newton Institute/Noise Futures Network Event, Arup Acoustics, London, Feb 22-23, 2007.
  61. Edge elements and coercivity, 19th Chemnitz FEM Symposium, Chemnitz, Germany, Sep 25-27, 2006.
  62. Topologie im industriellen Einsatz, Abschlusskolloquium des Sonderforschungsbereichs 382, Stuttgart, 17.-20. September 2006.
  63. Gauge conditions for Maxwell's equations in anisotropic media, 3rd Schlumberger study group on Applied Mathematics, Sugar Land, Texas, Jan 11-13,2006.
  64. Multigrid for Maxwell Eigenproblems, European Multigrid Conference, Scheveningen, the Netherlands, 27-30 September 2005.
  65. Current and Voltage Excitations for the Eddy Current Model, International Conference on Hot Topics in Applied and Industrial Mathematics Guiyang, Guizhou, China, July 13-16, 2005.
  66. Operator preconditioning, Presentation at the Oberwolfach Conference on Fast Solver for Partial Differential Equations, May 22-28, 2005.
  67. Presentation on Conservative Discretization of Einstein-Dirac Equations with Spherical Symmetry , BIRS Workshop on Numerical Relativity, Banff, Canada, April 16-21, 2005.
  68. Invited survey lectures on Edge elements and coercivity and Multigrid for Edge Elements, 29th Woudschoten Conference, Zeist, The Netherlands, October 6-8, 2004.
  69. Stable coupling for scattering, Presentation at the Oberwolfach conference about numerical methods for non-local operators, Mathematisches Forschungsinstitut Oberwolfach, Jul 5-9, 2004, Oberwolfach, Germany.
  70. Multigrid in H(curl), Invited presentation at ICCES Kolloquium, Hannover, July 3, 2004.
  71. Higher order Whitney Forms, Invited presentation at the IMA Special Topics Workshop on ``Compatible Spatial Discretizations for Partial Differential Equations'', Minneapolis, May 11-15, 2004.
  72. Non-reflecting boundary conditions for Maxwell's equations Talk at the 20th GAMM Seminar on Numerical Methods for Non-local Operators, Leipzig, Jan 22-24, 2004.
  73. Boundary Element Methods for Eddy Current Computation Invited plenary lecture at ENUMATH'03 conference Aug 18-22, 2003, Prague.
  74. Domain Decomposition Preconditioners for Edge Elements: A survey 15th International Conference on Domain Decmposition Methods, July 21-25,2003, Berlin, Germany.
  75. A Coupled Boundary Element Scheme for Eddy Current Computation 2. Kolloquium Elektromagnetische Umformung, Universität Dortmund, Germnay, May 27, 2003.
  76. Multigrid for Edge Elements: A Survey European Multigrid Conference, Oct 7-10, 2002, Hohenwart, Germany.
  77. Discretization of Maxwell's Equations, Workshop on numerical relativity, IMA Minneapolis, MN, June 24-29, 2002.
  78. Discrete Differential Forms, NSF-CBMS regional conference in the mathematical sciences ``Numerical methods in forward and inverse electromagnetic scattering'', Golden, CO, June 3-7, 2002.
  79. Coupling of Circuits and Fields, Conference on Modelling, Simulation and Optimization of integrated circuits, Oberwolfach, Nov 25 - Dec 1, 2001.
  80. Multigrid for Edge Elements, 2nd Danish Symposium on Applied Analysis, Aug 23-25, 2001, University of Copenhagen, Copenhagen, Denmark.
  81. Multigrid in H(curl): Latest News, Conference on ``Fast solvers for partial differential equations'', Mathematisches Forschungsinstitut Oberwolfach, May 28th - June 1st, 2001.
  82. Multigrid solution of mixed eigenproblems, Main talk in session on ``Domain decomposition methods'' at GAMM annual meeting 2001, Zürich, February 12-15, 2001.
  83. Mixed Finite Elements on Sparse Grids, Conference on ``Mixed finite elements and applications'', Mathematisches Forschungsinstitut Oberwolfach, February 4-10, 2001.
  84. FEM-BEM Coupling for Eddy Current Problems, Plenary lecture at GAMM-Workshop ``Computational Electromagnetism'', Kiel, January 26- 28, 2001.
  85. Diskrete Hodge-Operatoren, Main talk in session ``Numerical analysis, scientific computing, industrial mathematics'' at DMV Annual Meeting 2000, Dresden, September 18-22, 2000.
  86. Multigrid for Eddy Current Computation, Contribution at ``Advanced workshop on multigrid methods'', PennState University, College Park, PA, June 19-24, 2000.
  87. Domain Decomposition for Eddy Current Problems, Conference on ``Domain Decomposition and Multifield Theories'', Mathematisches Forschungsinstitut Oberwolfach, April 26 - May 2nd, 1998.
  88. Multigrid Method for Maxwell's equations, Conference on ``Adaptive methods for partial differential equations'', Mathematisches Forschungsinstitut Oberwolfach, February 16-22, 1997.

 

  1. Multilevel Decompositions of Boundary Element Spaces and Applications, talk in Minisymposium on Multilevel Algorithms and Theories, International Conference on Multigrid and Multiscale Methods, IMG, Bruchsal, Dec 5-9, 2016.
  2. Second-Kind Single-Trace Boundary Integral Equations, external page 14th S\"ollerhaus Workhop on Fast Boundary Element Methods and Industrial Applications, Kleinwalsertal, Oct 9-12, 2016.
  3. Second-Kind Single-Trace Boundary Integral Equations, Minisymposium on Recent Advances in Boundary Element Methods, MAFELAP conference, Brunel University, London, June 14-17, 2016.
  4. Dispersion Analysis of Plane Wave Discontinuous Galerkin Methods, Minisymposium on Recent Advances in Enriched Finite and Boundary Element Methods, MAFELAP conference, Brunel University, London, June 14-17, 2016.
  5. Cut-free Boundary Elements for Magnetic Potentials, 13. external page Workshop Fast Boundary Element Methods in Industrial Applications SÃllerhaus, Austria, OCt 23-26, 2015.
  6. Discrete Shape Gradients, IMA Special Workshop Finite Element Circus, Minneapolis, October 24-25, 2014.
  7. Discrete Shape Gradients, 12th European Finite Element Fair, Vienna, May 29-30, 2014.
  8. Combined field integral equations for acoustic scattering by partially impenetrable composite objects , external page 11th Workshop on FAST BOUNDARY ELEMENT METHODS IN INDUSTRIAL APPLICATIONS Soellerhaus, Kleinwalsertal, Austria, 26.-29.9.2013.
  9. BETL: Enhancements at ETH, Presentation at CASOPT closing workshop, ABB Corporate Research Baden Dättwil, March 12, 2013.
  10. Multi-trace Boundary Integral Equations, Symposium of the International Association for Boundary Element Methods (IABEM 2013), Pontificia Universidad Cat\'olica de Chile, Santiago de Chile, Jan 9-11, 2013.
  11. Boundary Element Methods for Scattering at Composite Objects, ACE2012 - 7th Workshop on Advanced Computational Electromagnetics, Karlsruhe Institute of Technology, Karlsruhe, Germany, Feb 29 - Mar 2, 2012.
  12. Multilevel Preconditioning for Edge Boundary Elements, 9th Söllerhaus Workshop on Fast Boundary Element Methods in Industrial Applications, Sep 29 - Oct 2, 2011, Hirschegg, Kleinwalsertal, Austria.
  13. Multiple traces boundary integral formulations for Helmholtz transmission problems, Talk in Minisymposium on Domain Decomposition Methods in Computational Electromagnetics, 20th International Conference on Domain Decomposition Methods, La Jolla, CA, Feb 7-11, 2011.
  14. Auxiliary space methods for edge elements, Talk in Minisymposium on Optimal Solvers from Multi-grid and Two-grid to One-grid and No-grid, 20th International Conference on Domain Decomposition Methods, La Jolla, CA, Feb 7-11, 2011.
  15. Discrete Lie Derivatives, Talk in Minisymposium on Structure preserving discretization of PDEs, Conference BIT 50 - Trends in Numerical Computing, Lund, Sweden, June 17-20, 2010.
  16. Plane Wave Discontinuot Galerkin Methods: Convergence Theory Presentation in minisymposium on FEM with non-polynomial basis functions at MAFELAP 2009, Brunel University, London, UK, June 9-12, 2009.
  17. Plane wave discontinuous Galerkin methods, presentation in minisymposium on Mathematical Analysis of Generalized Finite Element Methods, ECCOMAS 2008 conference, Venice, Italy, June 30-July 4, 2008.
  18. Force Computation: Mathematical Recipes, talk in session Advanced FEM at 9th International Workshop on Finite Elements for Microwave Engineering, May 8-9, Bonn.
  19. Excitation, talk in session Waveguide \& Lumped Elements at 9th International Workshop on Finite Elements for Microwave Engineering, May 8-9, Bonn.
  20. Auxiliary space preconditioning in H(curl), talk in session on Multigrid and Domain Decomposition Methods at 9th International Workshop on Finite Elements for Microwave Engineering, May 8-9, Bonn.
  21. Regular decompositions and multigrid analysis, Minisymposium on Adaptive and multilevel methods: design, analysis, and application. 6th International Congress on Industrial and Applied Mathematics, ICIAM, Zürich, July 16-20, 2007.
  22. Auxiliary space preconditioners for electromagnetics, Minisymposium on Adaptive and multilevel methods in electromagnetics, 6th International Congress on Industrial and Applied Mathematics, ICIAM, Zürich, July 16-20, 2007.
  23. Combined Field Integral Equations, talk at GAMM-Seminar, Leipzig, Jan 25-27, 2007.
  24. Regularized Combined Field Integral Equations, contributed talk at IABEM 2006 Conference, Graz, Austria, July 10-12, 2006.
  25. Resonance free interface coupled BEM for scattering, talk in minisympoisum on "Domain Decomposition based on Boundary Elements" at 17th International Conference on Domain Decomposition Methods, Strobl, Austria, July 3-7, 2006.
  26. Auxiliary space preconditioning in H(curl), talk in minisympoisum on "subspace correction methods" at 17th International Conference on Domain Decomposition Methods, Strobl, Austria, July 3-7, 2006.
  27. Nodal auxiliary space preconditioning for edge elements, MAFELAP'06 conference, Brunel University, London, June 13-16, 2006.
  28. Discrete regular decompositions, 4th European Finite Element Fair, June 2-3 2006, ETH Zuerich.
  29. Computing representations of curl-free surface fields, special session on equations with inherent constraints at Joint Meeting of AMS, DMV and ÖMG, Main, June 16-19, 2005.
  30. The Curse of Dispersion Workshop on Numerical Methods for Optical Nanostructures, ETH Zürich January 20, 2005.
  31. Surface edge elements, Keynote lecture in minisyposium on Fast Boundary Element Methods at Sixth World Congress on Computational Mechanics (WCCM VI), Beijing, PR China, Sep 5-10, 2004.
  32. Coercive Combined Field Integral Equations Workshop on Fast Boundary Element Methods in Industrial Applications, Söllerhaus (Kleinwalsertal), Austria, Oct 15-18, 2003.
  33. Symmetric Coupling of FEM and BEM for Eddy Current Computations, Fourth UK conference on boundary integral methods, University of Salford, Sep 15-16, 2003.
  34. Coercive Combined Field Integral Equations, Meeting on Waves, University of Reading, Reading UK, Sep 11, 2003.
  35. Discrete Differential Forms, Talk in minisyposium on Geometric Integration of PDEs at SciCADE 2003 conference, Jun 30 - Jul 4, 2003, Trondheim, Norway
  36. Construction and Classification of Surface Cycles, Talk in session on integral equations, European Symposium on Numerical Methods in Electromagnetics, Toulouse, France, March 6-8, 2002.
  37. Transmission Problems in Eddy Current Computation, Talk in minisyposium on domain decomposition methods, European Symposium on Numerical Methods in Electromagnetics, Toulouse, France, March 6-8, 2002.
  38. Ecken, Kanten und Feldapproximation, Talk at 3rd Edyson-Anwendertreffens, Bosch Corp., Stuttgart, Jan 31, 2002.
  39. FEM-BEM coupling in electromagnetic scattering, Workshop on Modern Aspects of Boundary Element Methods, Stuttgart, Germany, Oct 15-16 2001.
  40. The Maxwell-Helmholtz equations (Die Maxwell-Helmholtz-Gleichungen), BMBF workshop ``Modern Numerical Methods for the Helmholtz Equation'', Stuttgart, Germany, March 2-3 2001.
  41. Multigrid Computation of Maxwell Eigenvalues, 3rd SCEE-Conference (Scientific computing in electrical engineering), Rostock, Germany, August 20-23 2000.
  42. Higher Order Whitney Forms, Talk in session on ``Geometrical and Topological Issues in Three Dimensional Finite Element Analysis'', PIERS-Conference (Progress in Electromagnetic Research Symposium), Cambridge, MA, July 5-14 2000.
  43. FEM-BEM Coupling for Eddy Current Problems, Workshop ``FEM-BEM Kopplung: Schnelle Algorithmen und ihre Implementierung'', Kleinwalsertal, Austria, June 1-4 2000.
  44. Symmetric Coupling for Eddy Current Computation, GAMM Annual Meeting 2000, Göttingen, Germany, April 2-7 2000.
  45. A posteriori error estimation for edge elements, GAMM-Workshop on Adaptive Methods and Error Estimators, Kiel, Germany, Jan 21st - 23rd, 2000.
  46. Discrete Hodge operators, Workshop ``Discretization Methods in Electromagnetic Field Computation'', Rostock, Germany, August 1999.
  47. Stable Multilevel Gauging, Talk in minisymposium on ``Computational electromagnetism'', ENUMATH'99 conference, University of Jyväskylä, Finland, July 26-30 1999.
  48. A Posteriori Error Estimators for Edge Elements, ENUMATH'99 conference, University of Jyväskylä, Finland, July 26-30 1999.
  49. Hierarchical Error Estimator for Whitney Elements, Workshop on Adaptive Finite Element Methods and Optimzation (AMFEM), Heidelberg, Germany, Nov 19-21 1998.
  50. Multigrid in H(div) and H(curl) , GAMM - Workshop on Multigrid Methods, Bonn, Germany, Oct 5-8 1998.
  51. Multigrid for FIT, 2nd SCEE-Conference (Scientific Computing in Electrical Engineering), Berlin, Sept 30 - Oct 3 1998.
  52. Topology optimization with perimeter constraint (Topologieoptimierung mit Umfangsbeschränkung), Workshop ``Shape- and Topology Optimization'', Güunzburg, Germany, July 1998.
  53. Multigrid for quasistatic field problems (Mehrgitter für quasistationäre Feldprobleme), Workshop ``Finite Elements in Structural Mechanics'', Bochum, Germany, June 19-20 1998.
  54. Multigrid Method for Maxwell's Equations, ENUMATH'97 conference, Heidelberg, Germany, Sept 29 - Oct 3 1997.
  55. Adaptive multilevel methods for Maxwell's equations (Adaptive Multilevelverfahren für die Maxwellgleichungen), 1st SCEE-Conference (Scientific Computing in Electrical Engineering) of the DMV Special Interest Group ``Scientific Computing'', Darmstadt, Germany, July 1997.
  56. Multigrid Method for Maxwell's Equations, Workshop ``Parallel Solution of PDE'', IMA, Minneapolis, June 1997.
  57. Multigrid Method for Maxwell's Equations, Finite Element Circus, New York, NY, April 1997.
  58. Multigrid Method for H(div) in Three Dimensions, Eighth Copper Mountain Conference on Multigrid Methods, Copper Mountain, CO, April 1997.
  59. Preliminary results on the 3D Simulation of an Electrorheological Fluid, Talk in session on Numerical Analysis, GAMM Annual Meeting 1997, Regensburg, Germany, March 24-27 1997.
  60. Multilevel Methods for Mixed FEM, European Multigrid Conference, Stuttgart, Germany, Oct 1-5 1996.
  61. Operator Representation and Handling in an Object Oriented Adaptive Finite Element Code, AMFEM-Workshop (Adaptive Methods for Finite Elements), WIAS-Berlin, Berlin, Germany, August 1996.
  62. Multigrid Methods for Mixed Finite Elements in 3D (Mehrgitterverfahren für gemischte Finite Elemente in 3D), BMBF-Workshop on multigrid methods, Augsburg, Germany, June 1996.
  63. Nonconforming Mixed Finite Elements, Talk in session on Numerical Analysis, DMV Annual Meeting 1995, Ulm, Germany, Sep 17-23 1995.
  64. Concepts for an Object Oriented Finite Element Code, DMV-GAMM-Workshop ``Software Engineering in Scientific Computing'', Hamburg, Germany, June 6-8 1995.
  65. Multilevel Augmented Lagrangian Methods for 2nd Order Mixed Problems, Workshop on Recent Advances in Numerical Methods for Partial Differential Equations, Politecnico Torino, Torino, Italy, August 1995.
  66. A Stabilized Mixed Discretization of Continuity Equations Arising in Semiconductor Simulation, Talk in minisymposium on ``Seminconductor Device Simulation'', ECMI Annual Meeting, Kaiserslautern, Germany, 1994.
  67. Mixed finite elements in semiconductor device simulation (Gemischte Finite Elemente in der Halbleitersimulation), SCTP-Workshop (Scientific Computing in der Theoretischen Physik), Berlin 16.03-18.03.1994.
  68. Multilevel Methods for Convection-dominated Problems, Talk at 2nd Gauss Symposium, session on Numerical Analysis, Munich, Germany, July 1993.
  69. Object oriented concepts for a finite element code (Objektorientierte Konzepte für einen adaptiven FE-Code), Workshop on Pre- and Postprocessing, Universität Chemnitz-Zwickau, June 1993.
  1. Multi-trace boundary integral formulations, Seminar "Partial Differential Equations and Applications", College de France, Paris, March 3, 2017
  2. Exterior Shape Calculus, external page Séminaire de l'équipe EDP Analyse Numérique, Université de Nice, France, June 8, 2017
  3. Shape Differentiation: New Perspectives, Kolloquium des Departments Mathematik, Universität Erlangen-Nürnberg, June 20, 2017
  4. Shape Differentiation: New Perspectives, Seminarvortrag, Institut für Mathematik, Universität Tübingen, July 6, 2017
  5. Shape Differentiation: New Perspectives, external page Fakultätskolloquium Mathematik, TU München, Germany, November 15, 2017
  6. Multi-trace Boundary Integral Equations, Computational Engineering Seminar Talk, Universität Darmstadt, May 9, 2016.
  7. Maxwell's Equations and the Hodge-Laplacian, , Fakultätskolloquium der Technischen Fakultät, Christian-Albrechts Universität zu Kiel, Jan 29, 2016.
  8. Auxiliary Space Preconditioning for Variational Problems in H(curl), external page Kolloquium fuer Angewandte Mathematik, TU Hamburg-Harburg, Hamburg, Germany, Jan 28, 2016.
  9. Plane Wave Discontinuous Galerkin Methods , Seminar Talk, Institute of Computational Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing, China, June 5, 2015.
  10. Discretization of Advection-Diffusion of Magnetic Fields , BCSRC Seminar Beijing Computational Science Research Center Beijing, China, June 4, 2015
  11. Discretizing the Advection of Differential Forms , Mathematics Colloquium, The Chinese University of Hong Kong, Hong Kong, June 1, 2015
  12. Shape Calculus and Shape Optimzation, ShuRen Forum Talk, South University of Science and Technology of China (SUSTC), Shenzhen, China, May 29, 2015.
  13. Plane Wave Discontinuous Galerkin Methods, external page Seminar des Schwerpunkts "Partielle Differentialgleichungen", KIT Karlsruhe, Jan 9, 2014.
  14. Boundary Integral Equations on Complex Screens, Runge-Herglotz-Seminar über Angewandte Analysis, Universität Göttingen, January 6, 2014.
  15. Discretization of Advection-Diffusion of Magnetic Fields, Mathematikkolloquium, Institut für Mathematik, Universität Innsbruck, June 25, 2013.
  16. Sparse Tensor Edge Elements, Seminar presentation at Laboratoire Jacques-Louis Lions, Universite Marie et Pierre Curie, Paris VI, Feb 28, 2013.
  17. Multiple Point Evaluation on Combined Tensor Product Supports, external page MATHICSE Seminar, EPFL Lausanne, Dec 7, 2012.
  18. Continuous and Discrete Helmholtz-type Decompositions, Schwerpunktskolloquium Analysis und Numerik, Fachbereich Mathematik und Statistik, Universität Konstanz, Oct 18, 2012.
  19. Multiple Traces Boundary Integral Formulation for Helmholtz Transmission Problems, Seminaire de Institut Mathematique de Toulouse, June 7, 2011.
  20. Multiple Trace Boundary Integral Formulation for Helmholtz Transmission Problems, Miniworkshop Numerische Mathematik, TU Graz, Austria, March 10, 2011.
  21. Sparse Adaptive Finite Elements for Radiative Transfer, Mathematics Colloquium, Jacobs University Bremen, Bremen, Germany, September 6, 2010.
  22. Discrete Potentials and Discrete Compactness, Seminar, Department of Mathematics, Brunel University, June 10, 2010.
  23. Trefftz-DG methods, Talk at University of Reading as part of the steering committee meeting of the project on Boundary Integral Equation Methods for High Frequency Scattering Problems, June 7, 2010.
  24. Sparse Adaptive Finite Elements for Radiative Transfer, Seminar, ZIB Berlin, January, 2010.
  25. Adaptive Sparse Tensor Product Methods for Radiative Transfer, Kolloquium of SFB 611, University of Bonn, Germany, May 19, 2009.
  26. Plane Wave Discontinuous Galerkin Methods, Manchester Applied Mathematics Seminar, University of Manchester, UK, March 25, 2009.
  27. Spectral Galerkin Boundary Integral Equation Methods for Plasmonic Nano-Structures, Kolloquium SFB 755, Universität Göttingen, Jan 8, 2009.
  28. Continuous and Discrete Helmholtz-type Decompositions, Joint seminar of Department of Mathematics at CUHK and IMS, Nov 15, 2007.
  29. Sparse tensor product Galerkin scheme for radiative transfer, Seminar given at LSEC, Institute of Computational Mathematics, Chinese Academy of Sciences, Beijing, Oct 17, 2007.
  30. Plane wave discontinuous Galerkin Methods, Seminar given at LSEC, Institute of Computational Mathematics, Chinese Academy of Sciences, Beijing, Oct 15, 2007.
  31. Preconditioning Techniques for H(curl)-elliptic boundary value problems , Fraunhofer Institut SCAI, St. Augustin, April 16, 2007.
  32. Analysis of plane wave discontinuous Galerkin methods, Wednesday Seminar, Newton Institute Cambridge, Mar 7, 2007.
  33. Continuous and Discrete Helmholtz-type Decompositions, Mathematics Colloquium, Department of Mathematics, University of Strathclyde, Feb 28, 2007.
  34. Local multigrid theory, Numerical Analysis Seminar, Department of Mathematics, University of Strathclyde, Feb 27, 2007.
  35. Regularized combined field integral equations, Wednesday Seminar, Newton Institute Cambridge, Feb 20, 2007.
  36. Spurious solutions explained, presentation in Seminar on Computational Mathematics at university of Houston, Jan 9, 2006.
  37. \Delta=curl curl - grad div, Kolloquium, Technische Universitaet Muenchen, Oct 27, 2005.
  38. Operator Preconditioning, Seminar talk at Institute of Computational Mathematics, Chinese Academie of Sciences, Beijing, July 4, 2005.
  39. Discretization of Electromagnetic Fields, IWRMM-Kolloquium, Universität Karlsruhe, May 19, 2005
  40. Surface Discrete Differential Forms and Duality, Seminar of Mechanics and Computation Group, Department of Mechanical Engineering, Stanford University, April 26, 2005.
  41. Discrete Electromagnetics, Deprtment of Mathematics, University of Alberta, Edmonton, Canada, April 22, 2005.
  42. Stable FEM-BEM Coupling for Acoustics, POEMS Seminar, Project ONDES, INRIA, Rocquencourt, France, Oct 27, 2004.
  43. Kantenelemente, Kolloqium des Fachbereichs Mathematik, Universität Düsseldorf, April 23, 2004.
  44. Theory of Boundary Elements for Electromagnetic Scattering, MAPLY, Universite Lyon, March 16, 2004.
  45. \Delta=curl curl - grad div, Ecole Centrale de Lyon, March 16, 2004.
  46. \Delta=curl curl - grad div, Presentation in Kolloquium, Department of Electrical Engineering, Universität der Bundeswehr, Feb 9, 2004.
  47. The impact of non-density, Numerical Analysis Seminar, Uninversitaet Dresden, Jan 20, 2004
  48. Generators of Discrete Homology Classes: Algorithmic Topology in Car Manufacturing Numerical Analysis Seminar, EPFL Lausanne, Nov 7, 2003.
  49. Coercive Combined Field Integral Equations, Numerical Analysis, Seminar, University of Bath, UK, Sep 17, 2003.
  50. Coercive Combined Field Integral Equation for Direct Scattering, ZIB-Berlin, Berlin, Germany, May 30, 2003.
  51. FEM-BEM Coupling for Quasistatic Electromagnetism Isaac Newton Institute for Mathematical Sciences, Cambridge, UK, Feb 18, 2003.
  52. FEM-BEM Coupling for Eddy Current Problems Chinese Academy of Sciences, Beijing, Feb 26, 2003.
  53. Multigrid Solution of Mixed Eigenproblems University of Gent, Belgium, Jan 17, 2003.
  54. Wenn Räume nicht ganz dicht sind - Funktionalanalysis auf dem Computer Antrittsvorlesung Universität Tübingen, Dec 16, 2002, Tübingen.
  55. Multigrid for Eddy Current Computation, Lawrence Livermore National Lab, Livermore, CA, June 12, 2002.
  56. Higher Order Whitney Forms, Lawrence Livermore National Lab, Livermore, CA, June 11, 2002.
  57. Simulation induktiven Härtens, Vortrag im mathematischen Kolloqium an der Universität Kaiserslautern, Feb 19, 2002.
  58. Kantenelemente, Presentation at IZWR, Universität Jena, Jan 18th, 2002.
  59. Automated local mode analysis, Seminary lecture at University of Erlangen, Jan 17th, 2002.
  60. Discrete Differential Forms on Simplices, Dipartimento di Matematica ``Felice Casorati'', Universitá degli Studi di Pavia, Pavia, Italien, Sep 19, 2001.
  61. FEM-BEM Coupling in Electromagnetic Scattering, Dipartimento di Matematica, Universitá degli Studi di Trento, Trento, Italy, Sep 18, 2001.
  62. Edge Elements, R & D division of Bosch Corp., Stuttgart, Germany, Jul 5, 2001.
  63. Generators of discrete homology classes: Algorithmic topology for car manufacturing (Generatoren diskreter Homologieklassen: Algorithmische Topologie für die Automobilindustrie), Fakultät für Mathematik und Wirtschaftswissenschaften, Universität Ulm, Ulm, Germany, Jul 3, 2001.
  64. Direkte Randintegralformulierungen für die Maxwellgleichungen, IAM, Universität Bonn, Bonn, Germany, June 26, 2001.
  65. Edge Elements, Department of Mathematics, University of Strasbourg, Strasbourg, France, June 5, 2001.
  66. Discrete Differential Forms on Simplices, Seminar für Angewandte Mathematik, ETH Zürich, Zürich, Switzerland, April 18, 2001.
  67. Discrete Hodge Operators, Laboratoire de Mathematiques, Université de Metz, Metz, France, March 29, 2001.
  68. Multigrid Computation of Maxwell eigenvalues, MPI Leipzig, Leipzig, Germany, Jan 30, 2001.
  69. Multigrid Computation of Maxwell Eigenvalues, Universität Augsburg, Augsburg, Germany, Dec 7, 2000.
  70. FEM-BEM coupling for eddy current problems, Oberseminar Numerik, Universität Zürich, Zürich, Switzerland Nov 2, 2000.
  71. Multigrid for H(curl)-Elliptic Boundary Value Problems, Los Alamos National Laboratory, Los Alamos, NM, Jul 18, 2000.
  72. FEM-BEM-Kopplung für Wirbelstromprobleme, Research Center of DaimlerChrysler Corp., Ulm, Germany, Sep 14, 2000.
  73. Multigrid for Maxwell's equations, Department of Computational Mathematics, Beijing University (Beida), Beijing, PR China, May 4 2000.
  74. Multigrid for eddy current problems, Xi'an Jiaotong Universty Science School, Xi'an, Shaaxi, PR China, Apr 26, 2000.
  75. Diskretisierung der Maxwellgleichungen, Mathematisches Institut A, Universität Stuttgart, Stuttgart, Nov 4, 1999.
  76. Diskretisierung der Maxwellgleichungen, Universität Linz, Linz, Austria, Sep 21, 1999.
  77. Multigrid for FIT, Laboratory of Electromagnetics, Tampere University of Technology, Tampere, Finland, Aug 8, 1999.
  78. Kantenelemente, WIAS Berlin, Berlin, Germany, Jul 15, 1999.
  79. Diskretisierung der Maxwellgleichungen, IWR Heidelberg, Heidelberg, Germany, Jul 7, 1999.
  80. Konstruktion diskreter Differentialformen, Institut für Angewandte Mathematik (IAM), Universität Bonn, Bonn, Germany, Jan 21, 1999.
  81. Multigrid in H(div) und H(curl), Fachbereich Mathematik, Universität-Gesamthochschule Essen, Essen, Germany, Jan 20, 1999.
  82. Mehrgitterverfahren für Wirbelstromprobleme, Institut für Numerische und Angewandte Mathematik, Universität Göttingen, Göttingen, Germany, Jan 19, 1999.
  83. Diskrete Differentialformen auf Simplices, TU München, Munich, Nov 18, 1998.
  84. Talks on Finite Elemente fü elektromagnetische Felder and Multilevelverfahren für Kantenelemente, Institut für praktische Mathematik, Universität Kiel, Kiel, Germany, Oct 13-15, 1998.
  85. Finite elements for Maxwell's equations, Xiangtan University, Hunan, PR China, April 1998.
  86. Series of lectures on Adaptive Multilevel Methods for Edge Elements at Pennsylvania State University, March 1998 (Comprised four talks on Maxwell's equations and discrete differential forms,Edge elements, Multilevel methods in H(curl, A-posteriori Error Estimation for Edge Elements).
  87. A-posteriori Error Estimation for Edge Elements, University of Delaware, March 1998.
  88. Multigrid Method for eddy current problems, Bell Laboratories, Murray Hill NJ, March 1998.
  89. Mehrgitterverfahren zur Wirbelstromberechnung, Universität Darmstadt, Darmstadt, Germany, Jan 12, 1998.
  90. Numerische Lösung von Wirbelstromproblemen, Universität Tübingen, Tübingen, Germany, Dec 2, 1997.
  91. Numerische Simulation von Wirbelstromproblemen, Universität Linz, Linz, Austria, Oct 8, 1997.
  92. Finite elements for Maxwell's equations, University of Linköping, Sweden, Aug 27, 1997.
  93. Finite Elements for Differential Forms, IMA, Minneapolis, June 1997.
  94. Multigrid Method for Maxwell's Equations, University of Delaware, April 5 1997.
  95. Multilevel-Zerlegung solenoidaler Vektorfelder mit Anwendungen, ZIB-Berlin, Berlin, Germany, Nov 5, 1996.
  96. Multilevel-Zerlegung für gemischte FEM, Mathematisches Institut, Universität Würzburg, Würzburg, Germany, August 1996.
  97. Objektorierntierte Konzepte f"ur einen FE-Code, Universität der Bundeswehr, Neubiberg, Germany, Nov 11, 1994.
  98. Gemischte Finite Elemente in der Bauelementsimulation, IWR Heidelberg, Heidelberg, Germany, August 26, 1993.
  1. Gewöohnliche Differentialgleichungen: Anschauliche Numerik, HSGYM Hochschultag der Züricher Mittelschulen 2015, Feb 29, 2015, ETH Zurich.
  2. Topologie im industriellen Einsatz, Öffentlicher Vortrag im Rahmen der Reihe "150 ETH Professoren im Gespräch" zum Jubiläum ETH 150, April 2005.
  3. Algorithmic Topology for Car Manufacturing, Vortrag vor Studentendelegation aus Athen, 1. April 2004, ETH Höngerberg.
  4. Numerische Quadratur, Probevorlesung im Rahmen der Maturandentage 2003, 10.9.2003.
  5. Algorithmische Topologie für die Automobilindustrie, Schülervortrag am Schnuppertag der Universität Bonn, 11. April 2002.
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