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Armin Iske - Scientific Talks (173)


Invited Talks at Conferences, Workshops, and Minisymposia (43)

Shanghai (China)
Scattered data approximation by weighted kernels.
The 6th International Conference on Computational Harmonic Analysis.
Fudan University, Shanghai, China, 24-28 May 2017.

Bernried (Germany)
Scattered data approximation by weighted kernels.
IM-Workshop 2017 on Signals, Images, and Approximation.
Bernried, February 27 - March 3, 2017.

Dagstuhl (Germany)
Geometrical Methods for Adaptive Approximation of Image and Video Data.
Dagstuhl Workshop on Inpainting-based Image Compression.
Dagstuhl, 13-18 November 2016.

Trento (Italy)
How can ADER and WENO work hand in hand?
International Workshop on Recent Advances in Numerical Methods for Hyperbolic Conservation Laws and Nonlinear Time Dependent Partial Differential Equations. In Honour of the 70th Birthday of Prof. Dr. Dr. hc. Eleuterio F. Toro, OBE.
Trento, Italy, 2-4 November 2016.

Alba di Canazei (Italy)
Error Estimates and Convergence Rates for Filtered Back Projection.
4th Dolomites Workshop on Constructive Approximation and Applications.
Alba di Canazei, Italy, 8-13 September 2016.

Shanghai (China)
Error Estimates and Convergence Rates for Filtered Back Projection.
International Workshop on Mathematical Data Science 2016.
Fudan University, Shanghai, 20-23 May 2016.

Rauischholzhausen (Germany)
Kernel-based Image Reconstruction from Radon Data.
Conference on Multivariate Approximation.
Schloss Rauischholzhausen, 31st March - 6th April 2016.

San Diego (CA, U.S.A.)
On the Construction of Meshfree Finite Volume Particle Methods for High Order Numerical Flow Simulation.
Minisymposium in Memory of Ted Belytschko: Advances in Meshfree, Particle, XFEM, GFEM, and Related Methods, 13th U.S. National Congress on Computational Mechanics.
San Diego, CA, U.S.A., 26-30 July 2015.

Bremen (Germany)
Optimally Sparse Approximation of Signals by Adaptive Linear Splines over Anisotropic Triangulations.
36. Norddeutsches Kolloquium über Angewandte Analysis und Numerische Mathematik (NoKo 2015).
Jacobs University Bremen, Germany, 24-25 May 2015.

Salt Lake City (UT, U.S.A.)
Fourier-based and Kernel-based Image Reconstruction from Radon Data.
Minisymposium on Advances in Radial Basis Function and Other Meshfree Methods, 2015 SIAM Conference on Computational Science and Engineering (SIAM CSE 2015).
Salt Lake City, Utah, U.S.A., 14-18 March 2015.

Stuttgart (Germany)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Workshop on Recent Advances in Numerical Methods for Hyperbolic Conservation Laws, University of Stuttgart, 5-7 November 2014.

Chicago (IL, U.S.A.)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Minisymposium on Advances in Kernel Methods for Analysis and Statistics, 2014 SIAM Annual Meeting.
Chicago, Illinois, U.S.A., 7-11 July 2014.

Salt Lake City (UT, U.S.A.)
On the construction of kernel-based adaptive particle methods in numerical flow simulation.
Minisymposium on Advances in Radial Basis Function and Other Meshfree Methods, International Conference on Spectral and High Order Methods (ICOSAHOM 2014).
Salt Lake City, Utah, U.S.A., 23-27 June 2014.

Nashville (TN, U.S.A.)
Optimal N-term Approximation by Linear Splines over Anisotropic Delaunay Triangulations.
The 5th International Conference on Computational Harmonic Analysis.
Vanderbilt University, Nashville, Tennessee, 19-23 May 2014.

Bonn (Germany)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Seventh International Workshop on Meshfree Methods for Partial Differential Equations.
University of Bonn, 9-11 September 2013.

Bordeaux (France)
On the Construction of Meshfree Kernel-Based Particle Methods in High Order Numerical Flow Simulation.
European Workshop on High Order Nonlinear Numerical Methods for Evolutionary PDEs (HONOM 2013).
INRIA Bordeaux Sud-Ouest and University of Bordeaux (France), March 18-22, 2013.

Rostock (Germany)
Kernel-based Scattered Data Approximation.
33. Norddeutsches Kolloquium über Angewandte Analysis und Numerische Mathematik (NoKo 2012).
Universität Rostock, Germany, 4-5 May 2012.

Oberwolfach (Germany)
Adaptive ADER Methods using Kernel-based Polyharmonic Spline WENO Reconstruction.
Workshop on Recent Developments in the Numerics of Nonlinear Hyperbolic Conservation Laws and their Use in Science and Engineering.
Oberwolfach, Germany, 15-21 January 2012.

Leicester (UK)
On the Stability of Kernel-based Scattered Data Approximation.
Minisymposium on Approximation Theory and Radial Basis Functions.
European Numerical Mathematics and Advanced Applications (ENUMATH2011).
University of Leicester, UK, 5-9 September 2011.

Hong Kong
Sparse Geometric Image Approximation by Linear Splines over Anisotropic Triangulations.
The 4th International Conference on Computational Harmonic Analysis.
City University Hongkong, 23-27 May 2011.

Göttingen (Germany)
A Hitchhiker's Guide through the Zoo of Radial Kernels.
Workshop on Kernel Functions and Meshless Methods honoring the 65th birthday of Robert Schaback.
Göttingen, 14-15 January 2011.

San Antonio (Texas, U.S.A.)
Geometrical Methods for Adaptive Approximation of Image and Video Data.
Minisymposium Adaptive and Anisotropic Multivariate Approximation: Theory & Applications.
13th International Conference on Approximation Theory. San Antonio, Texas, U.S.A., 9th March 2010.

San Antonio (Texas, U.S.A.)
Curvature Analysis of Frequency Modulated Manifolds in Dimensionality Reduction.
Minisymposium Diffusion Geometry/Approximation on Manifolds.
13th International Conference on Approximation Theory. San Antonio, Texas, U.S.A., 7th March 2010.

Munich (Germany)
Sparse Representation of Video Data by Adaptive Tetrahedralizations.
Workshop Geometrical Methods in Mathematical Imaging, HelmholtzZentrum München, 9-10 October 2009.

Bonn (Germany)
On the Construction of Meshfree Particle Methods in Flow Simulation.
Fifth International Workshop on Meshfree Methods for Partial Differential Equations.
University of Bonn, 17-19 August 2009.

Uppsala (Sweden)
Adaptive ADER Schemes for Scalar Conservation Laws using Kernel-Based WENO Reconstructions.
Minisymposium on Advanced Techniques in Radial Basis Function Approximation for PDEs,
ENUMATH2009, University of Uppsala, 29th June - 3rd July, 2009.

Göttingen (Germany)
High Order Finite Volume Discretizations using Kernel-Based Reconstruction Methods.
Workshop on Positive Definite Functions in Numerical Analysis and Statistics,
University of Göttingen, 18-20 September 2008.

Stellenbosch (South Africa)
Scattered Data Approximation by Radial Basis Functions.
The 31st Annual Conference of SANUM (South African Society for Numerical and Applied Mathematics),
University of Stellenbosch, South Africa, 2-4 April 2007.

Alba di Canazei (Italy)
Multiscale Flow Simulation by Adaptive Particle Methods.
The First Dolomites Workshop on Constructive Approximation and Applications.
Alba di Canazei (Italy), 8th-12th September 2006.

Chester (UK)
Multiscale Flow Simulation by Adaptive Particle Methods.
A4A5 - The Fifth International Conference on Algorithms for Approximation.
University College Chester, 18th-22nd July 2005.

Lisbon (Portugal)
Multiscale Flow Simulation by Meshless Particle Methods.
ECCOMAS Thematic Conference on Meshless Methods.
LNEC Lisbon, 11th-14th July 2005.

Santander (Spain)
A Novel Concept for Image Compression by Linear Splines over Adaptive Triangulations.
Minisymposium on Image and Signal Processing, held at
FoCM'05 - Foundations of Computational Mathematics.
Universidad de Cantabria, Santander, 4th-6th July 2005.

Leicester (UK)
Multiscale Particle Simulation by using Radial Basis Functions,
Workshop on Radial Basis Function Methods and Applications,
Department of Mathematics, University of Leicester, 23rd February 2005.

Cambridge (UK)
Multiresolution Methods in Geometric Modelling,
Workshop on Geometric Modelling, Schlumberger Cambridge Research, 4th November 2004.

Eindhoven (The Netherlands)
Two-Phase Flow Simulation by AMMoC, an Adaptive Meshfree Method of Characteristics.
Minisymposium on Multiscale Methods for Flow in Porous Media, held at
ECMI2004 - The 13th European Conference on Mathematics for Industry.
Eindhoven University of Technology, June 21-25, 2004.

Tehran (Iran)
Multiscale Simulation of Two-Phase Flow in Porous Media by Meshfree Particle Methods.
International Workshop on Efficient Techniques for Numerical Solutions of Coupled PDE's and Applications to Reservoir Simulation,
Institute for Studies in Theoretical Physics and Mathematics (IPM), December 14-17, 2003.

Lisbon (Portugal)
Meshfree Lagrangian Advection Schemes for the Numerical Simulation of Transport Processes,
International Workshop on MeshFree Methods, July 21-23, 2003.

Oslo (Norway)
Hierarchical Scattered Data Filtering for Multilevel Interpolation Schemes,
Minisymposium on Scattered Data Modelling, held at
The Fifth International Conference on Mathematical Methods for Curves and Surfaces, June 29 - July 4, 2000.

Florence (Italy)
Scattered Data Modelling by using Radial Basis Functions,
Minisymposium on Approximation of Curves and Surfaces, University of Florence, June 9, 2000.

Oberwolfach (Germany)
A Grid-Free Adaptive Advection Scheme Using Radial Basis Functions,
Workshop Gitterlose Diskretisierungen für partielle Differentialgleichungen, April 17th, 2000.

Lillehammer (Norway)
Detection of Discontinuities in Scattered Data Approximation,
Minisymposium on Aspects of Software Development in CAGD, held at
The Fourth International Conference on Mathematical Methods for Curves and Surfaces, July 3-8, 1997.

Chamonix (France)
Generating Uniform Subsets of Scattered Data for Approximation,
Minisymposium on Radial Basis Function Interpolation, held at
The Third International Conference on Curves and Surfaces, June 27 - July 3, 1996.

Montecatini (Italy)
Scattered Data Analysis and Compactly Supported Radial Basis Functions,
International Workshop on Multivariate Approximation and Interpolation, Sep 27 - Oct 3, 1995.


Invited Tutorial Lectures (14)

Lund (Sweden)
Approximation.
Seminar Course on Numerical Analysis, University of Lund, 10-13 April 2017.

L'Aquila (Italy)
Kernel-based Reconstruction from Scattered Seismic Data.
Intensive Programme (IP) on Mathematical Models in Seismology, L'Aquila, 8-19 July 2013.

Padova (Italy)
Kernel-based Scattered Data Approximation.
Department of Mathematics, University of Padova, 6-7 March, 2013.

Lyngby (Denmark)
Dimensionality Reduction Methods for the Analysis of High-Dimensional Signal Data.
DTU, Lyngby, 4-7 June 2012.

Padova (Italy)
Kernel-based Scattered Data Approximation.
Department of Mathematics, University of Padova, 20-22 March, 2012.

L'Aquila (Italy)
Kernel-based Reconstruction from Scattered Seismic Data.
Intensive Programme (IP) on Mathematical Models in Seismology, L'Aquila, 11-15 July 2011.

Alba di Canazei (Italy)
Adaptive Approximation Methods for Signal Data Processing.
Dolomites Research Week on Approximation 2010 (DRWA10), Alba di Canazei, 6-9 September, 2010.

L'Aquila (Italy)
Mathematical Methods in Medical Image Reconstruction.
Intensive Programme (IP) on Mathematical Models in Life and Social Sciences, L'Aquila, April 26-29, 2010.

L'Aquila (Italy)
New Trends in Adaptive Data Compression with Applications to Medical Imaging, Neuro and Biosciences.
Intensive Programme (IP) on Mathematical Models in Life and Social Sciences, L'Aquila, July 6-19, 2008.

Zürich (Switzerland) (joint work presented by Nira Dyn)
Image Compression by Linear Splines over Adaptive Triangulations.
Zurich IHP Summer School 2004 Multiscale Geometric Data Representation - Complexity, Analysis and Applications,
ETH Zürich (Switzerland), August 30 - September 3, 2004.

Tehran (Iran)
Scattered Data Modelling by Using Radial Basis Functions.
International Workshop on Efficient Techniques for Numerical Solutions of Coupled PDE's and Applications to Reservoir Simulation,
Institute for Studies in Theoretical Physics and Mathematics (IPM), December 14-17, 2003.

Bergen (Norway)
Scattered Data Modelling: Basics, Advanced Topics, and Applications.
NORSIG2003 - The Norwegian Signal Processing Symposium, October 2-4, 2003.

Turin (Italy)
Radial Basis Functions: Basics, Advanced Topics and Recent Techniques for Solving Differential Equations,
Spline Functions and Radial Functions: Applications to Integral and Differential Problems, GNCS meeting,
University of Turin, February 6, 2003.

Munich (Germany)
Scattered Data Modelling using Radial Basis Functions,
European Summer School Principles of Multiresolution in Geometric Modelling,
Munich University of Technology, August 22-30, 2001.


Invited Talks at Host Institutions (73)

Saarbrücken (Germany)
Kernel-based Scattered Data Approximation.
Mathematisches Kolloquium, Universität des Saarlandes, 14th July 2017.

Bayreuth (Germany)
Error Estimates and Convergence Rates for Filtered Back Projection.
Mathematisches Kolloquium, Universität Bayreuth, 29th June 2017.

Passau (Germany)
Image Approximation by Adaptive Thinning.
IM-Kolloquium, Universität Passau, 27th June 2017.

Kiel (Germany)
Error Estimates and Convergence Rates for Filtered Back Projection.
Kolloquium, Technische Fakultät, Universität Kiel, 12th May 2017.

Fribourg (Switzerland)
Kernel-based Scattered Data Approximation.
Colloquium, Department of Mathematics, University of Fribourg, 4th April 2017.

Darmstadt (Germany)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Colloquium, Department of Mathematics, TU Darmstadt, 14th December 2016.

Lund (Sweden)
Kernel-based Scattered Data Approximation.
Numerical Analysis Seminar, University of Lund, Sweden, 20th April 2016.

Chemnitz (Germany)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Scientific Computing Seminar, Faculty of Mathematics, TU Chemnitz, 23rd October 2015.

Basel (Switzerland)
Ten good reasons for using kernel reconstructions in adaptive finite volume particle methods.
Department of Mathematics, University of Basel, 21st November 2014.

Oldenburg (Germany)
Adaptive ADER Methoden zur numerischen Simulation von nichtlinearen Transportprozessen.
Department of Mathematics, University of Oldenburg, 28th January 2013.

Sussex (UK)
Optimally Sparse Image Representations by Linear Splines over Anisotropic Delaunay Triangulations.
Department of Mathematics, University of Sussex (UK), 11th October 2012.

Lyngby (Denmark)
Algebraic Medical Image Reconstruction from Scattered Radon Data by Positive Definite Kernels.
DTU, Lyngby, 7th June 2012.

Osnabrück (Germany)
Optimal N-term Approximation by Linear Splines over Anisotropic Delaunay Triangulations.
Department of Mathematics, University of Osnabrück, 13th April 2012.

Oxford (UK)
On the Stability of Kernel-based Scattered Data Approximation.
OCCAM seminar, University of Oxford, 4th April 2012.

Padova (Italy)
Mathematical Methods in Medical Image Reconstruction.
Seminario NumLab, University of Padova, 21st March 2012.

Frankfurt/Main (Germany)
Adaptive ADER Methods using Kernel-based Polyharmonic Spline WENO Reconstruction.
University of Frankfurt, 3rd February 2012.

Stuttgart (Germany)
On the Construction of Kernel-Based Particle Methods in Meshfree Flow Simulation.
Institut für Chemische Verfahrenstechnik, University of Stuttgart (Germany), 7th December 2011.

Osnabrück (Germany)
Sparse Geometric Image Approximation by Linear Splines over Anisotropic Triangulations.
Colloquium, Department of Mathematics, University of Osnabrück (Germany), 9th November 2011.

Göttingen (Germany)
Scattered Data Approximation by Positive Definite Kernel Functions.
Runge-Herglotz-Seminar, University of Göttingen (Germany), 27th June 2011.

Brighton (UK)
Adaptive ADER Methods using Kernel-based Polyharmonic Spline WENO Reconstruction.
Maths and Applications Sussex Seminar (MASS), University of Sussex (UK), 3rd March 2011.

Turin (Italy)
Kernel-based Scattered Data Approximation.
Lezione Lagrangiana, University of Turin, 23rd February 2011.

Bonn (Germany)
Adaptive ADER Methoden zur numerischen Simulation von nichtlinearen Transportprozessen.
Universität Bonn, 8th December 2010.

Hamburg (Germany)
Adaptive Partikelmethoden zur numerischen Simulation von nichtlinearen Transportprozessen.
Technische Universität Hamburg-Harburg, 25th October 2010.

Glasgow (Scotland, UK)
Scattered Data Approximation by Radial Basis Functions.
Mathematics Colloquium, University of Strathclyde, Glasgow, 13th October 2010.

Barcelona
Kernel-based Reconstruction of Medical Images from Scattered CT Scans.
Colloquium of the Mathematical Department, Universitat Autònoma de Barcelona, 22nd September 2010.

Canberra (Australia)
Scattered Data Approximation by Radial Basis Functions.
Mathematical Sciences Institute (MSI) Colloquium, The Australian National University (ANU), Canberra, 3rd June 2010.

Passau (Germany)
Geometrische Methoden zur adaptiven Approximation von digitalen Bild- und Videodaten.
Fakultät für Informatik und Mathematik, Universität Passau, 13th January 2010.

Neuherberg (Germany)
Analysis of High-Dimensional Signal Data by Manifold Learning and Convolution Transforms.
IBB Kolloquium - Institut für Biomathematik und Biometrie, HelmholtzZentrum münchen, 16th April 2009.

Würzburg (Germany)
Adaptive Partikelmethoden zur numerischen Simulation von Mehrskaligkeitsphänomenen in nichtlinearen Transportprozessen.
Institut für Mathematik, Universität Würzburg, 15th April 2009.

Kiel (Germany)
Adaptive Partikelmethoden zur numerischen Simulation von nichtlinearen Transportprozessen.
Technische Fakultät, Universität Kiel, 25th April 2008.

Greifswald (Germany)
Scattered Data Reconstruction by Polyharmonic Splines - Local Approximation Order and Numerical Stability -
Kolloquium, Institut für Mathematik und Informatik, Universität Greifswald, 22nd January 2008.

Neuherberg (Germany)
Scattered Data Reconstruction by Polyharmonic Splines - Local Approximation Order and Numerical Stability -
IBB Kolloquium - Institut für Biomathematik und Biometrie,
GSF-Forschungszentrum für Umwelt und Gesundheit, 17th October 2007.

Duisburg (Germany)
Scattered Data Reconstruction by Polyharmonic Splines: Local Approximation Order and Numerical Stability.
Oberseminar Rhein-Ruhr, Universität Duisburg-Essen, 6th July 2007.

Marseille (France)
Multiscale Flow Simulation by Adaptive Particle Methods.
Universite de Provence (Aix-Marseille 1), 15th February 2007.

Hamburg (Germany)
Mehrskalensimulation mit adaptiven Partikelmethoden.
Seminar Mechanik, Institut für Modellierung und Berechnung, Technische Universität Hamburg-Harburg, 8th May 2006.

Lübeck (Germany)
Bildkompression mit linearen Splines über adaptiven Triangulierungen.
Kolloquium, Institut für Mathematik, Universität zu Lübeck, 18th January 2006.

Kassel (Germany)
Adaptive Partikelmethoden zur Numerischen Simulation von Transportprozessen.
Fachbereichskolloquium Mathematik, Universität Kassel, 21st November 2005.

Paderborn (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Institut für Mathematik, Universität Paderborn, 30th June 2005.

Reading (UK)
On the Approximation Order and Numerical Stability of Local Lagrange Interpolation by Polyharmonic Splines.
Applied Mathematics and Numerical Analysis Seminar,
Department of Mathematics, The University of Reading, 20th May 2005.

Siegen (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Fachbereich Mathematik, Universität Siegen, 12th April 2005.

Hamburg (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Fachbereich Maschinenbau, Helmut-Schmidt-Universität Hamburg, 25th February 2005.

Cambridge (UK)
On the Approximation Order and Numerical Stability of Local Lagrange Interpolation by Polyharmonic Splines.
Numerical Analysis Seminar, Department of Applied Mathematics and Theoretical Physics (DAMTP),
University of Cambridge, 17th February 2005.

Hamburg (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Fachbereich Mathematik, Universität Hamburg, 25th January 2005.

Ulm (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Fakultät für Mathematik und Wirtschaftswissenschaften, Universität Ulm, 22 December 2004.

St. Augustin (Germany)
Mehrskalensimulation mit adaptiven Partikelmethoden.
Forschungsseminar Wissenschaftliches Rechnen,
Fraunhofer Institut Algorithmen und Wissenschaftliches Rechnen. 15 December 2004.

Cologne (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Mathematisches Kolloquium, Universität zu Köln, 29 October 2004.

Saarbrücken (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Universität des Saarlandes, September 2, 2004.

Trento (Italy)
On the Approximation Order and Numerical Stability of Local Lagrange Interpolation by Polyharmonic Splines.
Department of Mathematics, University of Trento, March 22, 2004.

Leicester (England)
Multiscale Simulation of Two-Phase Flow in Porous Media by Meshfree Particle Methods,
Department of Mathematics and Computer Science, University of Leicester, November 28, 2003.

Konstanz (Germany)
Adaptive Thinning with Application to Image Compression and Geometric Modelling,
Multimedia Signal Processing, Universität Konstanz, November 10, 2003.

Munich (Germany)
Ausgewählte Mathematische Methoden des Computer-Aided Design.
Fachhochschule München, Fachbereich Maschinenbau/Fahrzeugtechnik/Flugzeugtechnik, October 29, 2003.

Rostock (Germany)
Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen.
Mathematisches Kolloquium, Universität Rostock, October 15, 2003.

Groningen (The Netherlands)
Meshfree Lagrangian Advection Schemes for the Numerical Simulation of Transport Processes,
Department of Mathematics, University of Groningen, August 20, 2003.

Basel (Switzerland)
Adaptive Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen,
Mathematisches Institut, Universität Basel, June 26, 2003.

Nantes (France)
Adaptive Meshfree Advection Schemes for the Numerical Simulation of Transport Processes,
Dépt. Mathématiques, Université de Nantes, June 19, 2003.

Vienna (Austria)
Adaptive Gitterfreie Advektionsmethoden zur Numerischen Simulation von Transportprozessen,
Institut für Angewandte und Numerische Mathematik, Technische Universität Wien, June 10, 2003.

Stavanger (Norway)
Adaptive Lagrangian Methods for the Numerical Simulation of Transport Processes,
Schlumberger Stavanger Research, April 1, 2003.

Verona (Italy)
Scattered Data Approximation by using Radial Basis Functions,
Faculty Seminar, Computer Science Department, University of Verona, February 25, 2003.

Braunschweig (Germany)
Adaptive Advektionsmethoden zur numerischen Simulation von Transportprozessen,
Institut für Angewandte Mathematik, Technische Universität Braunschweig, January 20th, 2003.

Neubiberg (Germany)
Adaptive Mehrskalenmethoden zur numerischen Approximation unstrukturierter Daten,
Kolloquium Mathematik - Grundlagen und Anwendungen in Bauingenieurwesen und Geodäsie,
Institut für Mathematik und Bauinformatik, Universität der Bundeswehr München, October 1st, 2002.

Abingdon (England)
Multiresolution Methods in Scattered Data Modelling,
Schlumberger Abingdon Technology Center, February 25, 2002.

Göttingen (Germany)
Gitterfreie adaptive Advektionsmethoden zur numerischen Behandlung von Transportproblemen,
Kolloquium über Angewandte Mathematik, Institut für Numerische und Angewandte Mathematik,
Universität Göttingen, November 13, 2001.

Leicester (England)
Thinning Algorithms in Scattered Data Modelling,
Department of Mathematics and Computer Science, University of Leicester, March 22, 2001.

Huddersfield (England)
Thinning Algorithms in Scattered Data Modelling,
School of Computing and Mathematics, University of Huddersfield, March 21, 2001.

Leicester (England)
Grid-Free Adaptive Semi-Lagrangian Advection using Radial Basis Functions,
MMC Colloquium, Spring 2001 Series, The Centre for Mathematical Modelling, University of Leicester, March 9, 2001.

Kaiserslautern (Germany)
Ein gitterfreies adaptives Advektionsschema unter Verwendung von radialen Basisfunktionen,
Fraunhofer Institut Techno- und Wirtschaftsmathematik, January 30, 2001.

Neuherberg (Germany)
Multilevel-Interpolation von unstrukturierten multivariaten Daten mit radialen Basisfunktionen,
IBB Kolloquium - Institut für Biomathematik und Biometrie,
GSF-Forschungszentrum für Umwelt und Gesundheit, 15th December 1999.

Tel-Aviv (Israel)
Perfect Centre Sets for Radial Basis Function Methods, Tel-Aviv University, April 19th, 1999.

Vienna (Austria)
Praktische Aspekte bei der Interpolation mit Radialen Basisfunktionen, Universität Wien, September 23rd, 1998.

Berlin (Germany)
Hierarchische Interpolation mit Radialen Basisfunktionen, Konrad-Zuse-Zentrum für Informationstechnik Berlin, March 10th, 1998.

Zaragoza (Spain)
Scattered Data Analysis and Industrial Applications, Seminario de Matematica Aplicada, Universidad de Zaragoza, November 30th, 1995.

Linz (Austria)
Multivariate Interpolation mit Radialen Basisfunktionen,
Institut für Industriemathematik, Johannes-Kepler-Universität Linz, August 2nd, 1995.

Oslo (Norway)
Multivariate Interpolation using Radial Basis Function Methods, Institutt for informatikk, Universitetet i Oslo, May 8th, 1995.


Other Invited Talks (6)

Hamburg (Germany)
Kern-basierte Approximationsmethoden in bildgebenden Verfahren der Medizin.
Mathematische Modellierung in den Natur-, Technik und Gesellschaftswissenschaften,
Allgemeines Vorlesungswesen, Universität Hamburg, 16th May 2011.

Hamburg (Germany)
Adaptive Partikelmethoden zur numerischen Lösung von hyperbolischen Erhaltungsgleichungen.
Physikalische Kolloquium, Universität Hamburg, 18. Juni 2009.

Hamburg (Germany)
Adaptive Extraktion signifikanter Informationen zur effizienten Datenkompression -
Überzeugende Qualität zu unschlagbar günstigen Preisen!
Festvortrag zum MIN-Fakultätskolloquium anlässlich des Dekanswechsels.
Universität Hamburg, 1. April 2009.

Hamburg (Germany)
Weniger ist mehr - mehr oder weniger! Effiziente Datenreduktion und Anwendungen.
Festvortrag, Absolventenfeier, Department Mathematik, Universität Hamburg, 7. Februar 2007.

Hamburg (Germany)
Über Probleme bei der optimalen Standortbestimmung, deren mögliche Lösungsmethoden und weitere Anwendungen ,
Mathematische Gesellschaft in Hamburg, 28th April 2006.

Hamburg (Germany)
Bildkompression mit linearen Splines,
Mathematische Modellierung in den Natur-, Technik und Gesellschaftswissenschaften,
Allgemeines Vorlesungswesen, Universität Hamburg, 11th April 2006.


Contributed Talks at Conferences and Workshops (30)

Plön (Germany)
Scattered data approximation by weighted kernels.
CSE 2017 Workshop Recent trends and future developments in Computational Science & Engineering,
Plön, 22-24 March 2017.

Albuquerque (NM, U.S.A.)
Sparse Approximation of Images by Adaptive Thinning.
SIAM Conference on Imaging Science.
Albuquerque, New Mexico, U.S.A., 23-26 May 2016.

Lübeck (Germany)
Kernel-based Image Reconstruction from Radon Data.
37. Norddeutsches Kolloquium über Angewandte Analysis und Numerische Mathematik (NoKo 2016).
Universität zu Lübeck, Germany, 22-23 April 2016.

Washington D.C.
Optimally Sparse Image Approximation by Adaptive Linear Splines over Anisotropic Triangulations,
SampTA2015 - 11th International Conference on Sampling Theory and Applications, May 25-29, 2015.

Plön (Germany)
Optimal N-term Approximation by Linear Splines over Anisotropic Delaunay Triangulations.
CSE 2015 Workshop Recent trends and future developments in Computational Science & Engineering,
Plön, 11-13 March 2015.

Plön (Germany)
On the Construction of Kernel-Based Adaptive Particle Methods in Numerical Flow Simulation.
CSE 2014 Workshop Recent trends and future developments in Computational Science & Engineering,
Plön, 26-28 March 2014.

Hasenwinkel (Germany)
Kernbasierte Rekonstruktionsmethoden in der medizinischen Bildverarbeitung.
Mecklenburger Workshop Approximationsmethoden und schnelle Algorithmen,
Hasenwinkel, 20th-23rd June 2013.

Gleichen-Reinhausen (Germany)
Optimal N-term Approximation by Linear Splines over Anisotropic Delaunay Triangulations.
Workshop Advances in Mathematical Image Processing. Akademie Waldschlösschen, 4-6 September 2012.

Singapore
On the Stability of Polyharmonic Spline Reconstruction.
The 9th International Conference on Sampling Theory and Applications (SampTA 2011). Singapore, 2-6 May 2011.

Trento (Italy)
Adaptive ADER Methods using Kernel-based Polyharmonic Spline WENO Reconstruction.
European Workshop on High Order Nonlinear Numerical Methods for Evolutionary PDEs: Theory and Applications (HONOM 2011). University of Trento, 11-14 April 2011.

Berlin (Germany)
Adaptive Approximation Algorithms for Sparse Data Representation.
SPP-JT09: First Annual Meeting of SPP 1324.
ZIB, Berlin, 5-6 November 2009.

Alba di Canazei (Italy)
Analysis of High-Dimensional Signal Data by Manifold Learning and Convolution Transforms.
2nd Dolomites Workshop on Constructive Approximation and Applications.
Alba di Canazei (Italy), September 4-9, 2009.

Ambleside (UK)
Sparse Representation of Video Data by Adaptive Tetrahedralizations.
A4A6 - Algorithms for Approximation VI.
Ambleside (UK), 31st August - 4th September 2009.

Sydney (Australia)
Analysis of High-Dimensional Signal Data by Manifold Learning and Convolution Transforms.
HDA09 - 3rd International Workshop on Highdimensional Approximation.
University of New South Wales, Sydney, 16th-20th February 2009.

Hasenwinkel (Germany)
Adaptive Approximation digitaler Bilder.
Mecklenburger Workshop Approximationsmethoden und schnelle Algorithmen,
Hasenwinkel, 6th-8th June 2008.

Avignon
Multiscale Scattered Data Reconstruction by Radial Basis Functions,
The Sixth SMAI-AFA Conference on Curves and Surfaces,
Avignon (France), June 29 - July 5, 2006.

Luxembourg
Two-Phase Flow Simulation by Multiscale Particle Methods,
76. Jahrestagung der Gesellschaft für Angewandte Mathematik und Mechanik e.V.,
Sektion Numerical Analysis, Université du Luxembourg, 28th March - 1st April 2005.

Bonn (Germany)
On the Stability of Multiscale Particle Methods in Meshfree Flow Simulation,
Second International Workshop Meshfree Methods for Partial Differential Equations,
University of Bonn, 15th-17th September 2003.

Strobl (Austria)
On the Numerical Stability of Scattered Data Interpolation by Polyharmonic Splines,
SampTA03 - The Fifth International Conference on Sampling Theory and Applications, May 26-30, 2003.

Cancun (Mexico)
Multilevel Scattered Data Approximation by Adaptive Domain Decomposition,
Third International Conference Multivariate Approximation: Theory and Applications, April 24-29, 2003.

Bommerholz (Germany)
On the Local Approximation Order of Scattered Data Interpolation by Polyharmonic Splines,
Fifth International Conference on Multivariate Approximation, September 22-27, 2002.

St. Malo (France)
Adaptive Thinning for Bivariate Scattered Data,
Fifth International Conference on Curves and Surfaces, June 27 - July 3, 2002.

Vienna (Austria)
Adaptive Sampling: Computational Techniques and Applications,
2nd International Gabor Workshop,
University of Vienna, December 3-7, 2001.

Bonn (Germany)
An adaptive meshfree method of backward characteristics,
International Workshop Meshfree Methods for Partial Differential Equations,
University of Bonn, September 11-14, 2001.

Orlando (Florida, U. S. A.)
Optimal Recovery Spaces for Irregular Sampling and their Generating Functions,
SampTA2001 - An International Conference on Sampling Theory and Applications, May 13-17, 2001.

Braunschweig (Germany)
Grid-free Adaptive Semi-Lagrangian advection using radial basis functions,
GAMM Workshop, Discrete Modelling and Discrete Algorithms in Continuum Mechanics,
Technische Universität Braunschweig, November 24-25, 2000.

Dresden (Germany)
Ein gitterfreies adaptives Advektionsschema unter Verwendung von radialen Basisfunktionen,
DMV Jahrestagung 2000, Sektion Numerische Mathematik/Wissenschaftliches Rechnen/Industriemathematik,
September 18-22, 2000.

Loen (Norway)
Reconstruction of Smooth Signals from Irregular Samples by using Radial Basis Function Approximation,
SampTA'99 - 1999 International Workshop on Sampling Theory and Applications, August 11-14, 1999.

College Station (Texas, U.S.A.)
Scattered Data Reconstruction and Radial Basis Function Interpolation Methods,
Eighth Texas International Conference on Approximation Theory, January 7-12, 1995

Ulvik (Norway)
Characterization of Conditionally Positive Definite Functions,
Third International Conference on Mathematical Methods in Computer Aided Geometric Design, June 16-21, 1994.


Talks at Project Meetings (5)

Santa Margherita (Italy)
On Thinning Algorithms, Local Polyharmonic Spline Interpolation, and Meshfree Methods for Solving Transport Problems,
MINGLE annual meeting, Santa Margherita, February 28, 2003.

Stavanger (Norway)
NetAGES annual meeting, Schlumberger Stavanger Research, June 19, 2001.

Grenoble (France)
Thinning Algorithms for Multiresolution in Scattered Data Modelling,
MINGLE annual meeting, January 18-19, 2001.

Stavanger (Norway)
NetAGES kick-off meeting, Schlumberger Stavanger Research, November 9, 2000.

Nachsholim (Israel)
Thinning Algorithms in Scattered Data Modelling,
MINGLE kick-off meeting, March 29, 2000.


Examinations (2)

Munich (Germany)
Das Waringsche Problem,
Habilitationskolloquium, Fakultät für Mathematik, Technische Universität München, 4th December 2002.

Munich (Germany)
Gitterfreie adaptive Advektionsmethoden zur numerischen Behandlung von Transportproblemen,
Fakultätskolloquium (Vorstellung als Cand. habil.), Zentrum Mathematik, Technische Universität München, 29th January 2002.



 
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