Selected talks and conference activities:

  • J. Duintjer Tebbens, joint work with G. Meurant: On arbitrary convergence behavior of the Arnoldi method , invited poster at the XVIII. Householder Symposium, Lake Tahoe, June 12-17, 2011.
  • J. Duintjer Tebbens, joint work with M. Tuma: Incremental condition estimation with inverse triangular factors, talk at the Applied Linear Algebra conference, organized by the Faculty of Sciences of the University of Novi Sad, May 25, 2010.
  • J. Duintjer Tebbens, joint work with M. Tuma: On an approximate preconditioner update for sequences of large nonsymmetric linear systems, talk at the international IMACS conference Modelling 2009, Roznov, Czech Republic, June 22-26, 2009.
  • J. Duintjer Tebbens, joint work with M. Tuma: On a black-box preconditioner update for solving sequences of nonsymmetric linear systems in matrix-free environment, invited oral contribution at the Winter school: New trends in scientific computing, Luminy, France, February 9-13, 2009.
  • J. Duintjer Tebbens, joint work with M. Tuma: On the Usage of Triangular Preconditioner Updates in Matrix-Free Environment, invited talk at the minisymposium on algebraic preconditioning at the 5th International Workshop on Parallel Matrix Algorithms and Applications (PMAA'08), Neuchatel, Switzerland, June 20-22, 2008.
  • J. Duintjer Tebbens, joint work with M. Tuma: An Updated Preconditioner for Sequences of General Nonsymmetric Linear Systems, invited talk at the XVII. Householder Symposium, Zeuthen, June 1-6, 2008.
  • J. Duintjer Tebbens, joint work with R. Luce, J. Liesen and R. Nabben: On the solution of the linear systems arising in the Simplex method with modern linear solvers, invited talk at the minisymposium ,,Iterative methods for large sparse linear systems and optimization'' at the IMA Conference on Numerical Linear Algebra and Optimisation, University of Birmingham, UK, September 13, 2007.
  • Organizer, jointly with Ph. Birken, of the minisymposium ,,Preconditioners for sequences of linear systems", at the ICIAM 07 International Congress on Industrial and Applied Mathematics, Zuerich, July 16 - 20, 2007.
  • J. Duintjer Tebbens, joint work with M. Tuma: Preconditioner Updates for Sequences of Sparse, Large and Nonsymmetric Linear Systems, talk at the GAMM-SIAM Conference on Applied Linear Algebra, Duesseldorf, July 27, 2006.
  • P. Schlesinger, joint work with J. Duintjer Tebbens: Implementations of Fisher's Linear Discriminant Analysis from the Numerical Point of View, talk at the 3rd World Conference on Computational Statistics & Data Analysis, Cyprus, October 29, 2005.
  • J. Duintjer Tebbens, joint work with Z. Strakos: GMRES acceleration analysis for a convection diffusion model problem, talk at the ALGORITMY 2005 international conference, organized by the Department of Mathematics and Descriptive Geometry, Slovak University of Technology, Podbanske, March 15, 2005.

    • Editorial activities:

    Referee reports for SIMAX, SISC, Linear Algebra & Applications, Computational Statistics and Data Analysis, the Journal of Computational and Applied Mathematics, Applied Mathematics and Computation, Kybernetika and IEEE Transactions on Systems, Man and Cybernetics. Managing editor of Zentralblatt MATH for reviews of Numerical Linear Algebra and Applications.