Dr. Hendrik Speleers | OPTEC - K.U.Leuven CoE Optimization in Engineering

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Dr. Hendrik Speleers (CS)

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IT (Articles in internationally reviewed academic journals)

Speleers, H., Manni, C., Pelosi, F., Sampoli, M. (2012). Isogeometric analysis with Powell-Sabin splines for advection-diffusion-reaction problems. Computer Methods in Applied Mechanics and Engineering, 221-222 (1), 132-148.

Speleers, H. (2012). Interpolation with quintic Powell-Sabin splines. Applied Numerical Mathematics, 62 (5), 620-635.

Giannelli, C., Jüttler, B., Speleers, H. (2012). THB-splines: the truncated basis for hierarchical splines. Computer Aided Geometric Design.

Speleers, H. (2011). On multivariate polynomials in Bernstein-Bézier form and tensor algebra. Journal of Computational and Applied Mathematics, 236 (4), 589-599.

Speleers, H. (2011). Construction of normalized B-splines for a family of smooth spline spaces over Powell-Sabin triangulations. Constructive Approximation.

Schumaker, L., Speleers, H. (2011). Convexity preserving splines over triangulations. Computer Aided Geometric Design, 28 (4), 270-284.

Speleers, H. (2010). A normalized basis for quintic Powell-Sabin splines. Computer Aided Geometric Design, 27 (6), 438-457.

Schumaker, L., Speleers, H. (2010). Nonnegativity preserving macro-element interpolation of scattered data. Computer Aided Geometric Design, 27 (3), 245-261.

Speleers, H. (2010). A normalized basis for reduced Clough-Tocher splines. Computer Aided Geometric Design, 27 (9), 700-712.

Speleers, H., Dierckx, P., Vandewalle, S. (2009). Quasi-hierarchical Powell-Sabin B-splines. Computer Aided Geometric Design, 26 (2), 174-191.

Speleers, H., Dierckx, P., Vandewalle, S. (2008). Multigrid methods with Powell-Sabin splines. IMA Journal of Numerical Analysis, 28 (4), 888-908.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). Powell-Sabin splines with boundary conditions for polygonal and non-polygonal domains. Journal of Computational and Applied Mathematics, 206 (1), 55-72.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). Weight control for modelling with NURPS surfaces. Computer Aided Geometric Design, 24 (3), 179-186.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Local subdivision of Powell-Sabin splines. Computer Aided Geometric Design, 23 (5), 446-462.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Numerical solution of partial differential equations with Powell-Sabin splines. Journal of Computational and Applied Mathematics, 189 (1-2), 643-659.

IHb (Article in academic book, internationally recognised scientific publisher)

Speleers, H., Dierckx, P., Vandewalle, S. (2011). Computer aided geometric design with Powell-Sabin splines. In: Wright J., Hughes L. (Eds.), Computer Animation (pp. 177-208) Nova Science Publishers.

Speleers, H., Dierckx, P., Vandewalle, S. (2009). Computer aided geometric design with Powell-Sabin splines. In: De Smet C., Peeters J. (Eds.), Computer-Aided Design and other Computing Research Developments (pp. 319-350) Nova Science Publishers.

IC (Papers at international scientific conferences and symposia, published in full in proceedings)

Speleers, H., Dierckx, P., Vandewalle, S. (2010). On the local approximation power of quasi-hierarchical Powell-Sabin splines. Lecture Notes in Computer Science: Vol. 5862. Mathematical Methods for Curves and Surfaces. Tønsberg, Norway, June 26 - July 1, 2008 (pp. 419-433) Springer.

Speleers, H., Dierckx, P., Vandewalle, S. (2008). On the Lp-stability of quasi-hierarchical Powell-Sabin B-splines. In Neamtu, M. (Ed.), Schumaker, L. (Ed.), Approximation Theory XII: San Antonio 2007. International Conference in Approximation Theory. San Antonio, Texas, USA, 4-8 March 2007 (pp. 398-413). Brentwood: Nashboro Press.

IMa (Meeting abstracts, presented at international scientific conferences and symposia, published or not published in proceedings or journals)

Speleers, H., Manni, C., Pelosi, F. (2012). Isogeometric analysis: from a NURBS to a NURPS geometry. Isogeometric Analysis and Applications. Linz, Austria, 12-16 March 2012.

Speleers, H. (2012). Quasi-interpolation based on Powell-Sabin B-splines and their multivariate generalization. New Trends in Applied Geometry. Villa Cagnola, Gazzada, Italy, 12-17 February 2012.

Giannelli, C., Jüttler, B., Speleers, H. (2011). On the normalization of hierarchical B-splines. SIAM Conference on Geometric and Physical Modeling. Orlando, Florida, USA, 24-27 October 2011.

Speleers, H., Manni, C., Pelosi, F., Sampoli, M. (2011). On the use of Powell-Sabin B-splines for local refinement in advection-diffusion-reaction problems. SIAM Conference on Geometric and Physical Modeling. Orlando, Florida, USA, 24-27 October 2011.

Speleers, H., Giannelli, C., Jüttler, B. (2011). Normalized hierarchical B-splines. International Conference on Multivariate Approximation. Hagen, Germany, 24-27 September 2011.

Giannelli, C., Jüttler, B., Speleers, H. (2011). Truncated B-splines. Third Annual Fall School on Shapes, Geometry, and Algebra. Vilnius, Lithuania, 27-30 September 2011.

Speleers, H., Manni, C., Pelosi, F., Sampoli, M. (2011). Numerical solution of PDEs using Powell-Sabin B-splines. Third Annual Fall School on Shapes, Geometry, and Algebra. Vilnius, Lithuania, 27-30 September 2011.

Speleers, H., Manni, C., Pelosi, F., Sampoli, M. (2011). Numerical solution of advection-diffusion-reaction problems with Powell-Sabin B-splines. Conference on Geometry - Theory and Applications. Vorau, Austria, 20-24 June 2011.

Speleers, H., Schumaker, L. (2011). Convexity preserving splines on triangulations. International Symposium in Approximation Theory. Nashville, Tennessee, USA, 17-21 May 2011.

Speleers, H. (2011). On the use of Powell-Sabin B-splines for the numerical solution of PDEs. New Trends in Applied Geometry. Hurdal, Norway, 20-25 February 2011.

Speleers, H. (2010). Constructing a normalized basis for splines on Powell-Sabin triangulations. Multivariate Approximation and Interpolation with Applications. Edinburgh, UK, 6-10 September 2010.

Speleers, H. (2010). The construction of normalized B-splines defined on Powell-Sabin triangulations. International Conference on Curves and Surfaces. Avignon, France, 24-30 June 2010.

Speleers, H., Schumaker, L. (2010). Convexity of spline functions on triangulations. International Conference in Approximation Theory. San Antonio, Texas, USA, 7-10 March 2010.

Speleers, H., Schumaker, L. (2009). Nonnegativity preserving macro-element interpolation. 2009 SIAM/ACM Joint Conference on Geometric and Physical Modeling. San Francisco, California, USA, October 5-8, 2009.

Speleers, H., Dierckx, P., Vandewalle, S. (2008). From PS splines to QHPS splines. Seventh International Conference on Mathematical Methods for Curves and Surfaces. Tønsberg, Norway, June 26 - July 1, 2008.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). Local adaptive approximation with QHPS splines. Tenth SIAM Conference on Geometric Design & Computing. San Antonio, Texas, USA, November 4-8, 2007.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Normalized hierarchical Powell-Sabin B-splines. Twelfth International Congress on Computational and Applied Mathematics Conferentie. Leuven, Belgium, July 10-14, 2006.

Speleers, H., Dierckx, P., Vandewalle, S. (2005). A local subdivision scheme for Powell-Sabin splines. Ninth SIAM Conference on Geometric Design & Computing. Phoenix, Arizona, USA, October 30 - November 3, 2005.

Speleers, H., Dierckx, P., Vandewalle, S. (2005). Powell-Sabin splines with boundary conditions. 21st Biennial Conference on Numerical Analysis. Dundee, Scotland, June 28 - July 1, 2005.

Speleers, H. (2005). Numerical simulation with Powell-Sabin spline finite elements. Thirtieth Conference of the Dutch-Flemisch Numerical Analysis Communities. Zeist, The Netherlands, October 12-14, 2005.

Speleers, H., Dierckx, P., Vandewalle, S. (2004). Numerical solution of partial differential equations with Powell-Sabin splines. Eleventh International Congress on Computational and Applied Mathematics. Leuven, Belgium, July 26-30, 2004.

AMa (Meeting abstracts, presented at other scientific conferences and symposia, published or not published in proceedings or journals)

Speleers, H. (2012). Quasi-interpolation based on Powell-Sabin B-splines and their multivariate generalization. Seminar. Università di Firenze, Florence, Italy, 27 January 2012.

Speleers, H. (2011). Truncated hierarchical B-splines. Workshop. Università di Roma “Tor Vergata”, Rome, Italy, 15 December 2011.

Speleers, H. (2011). Convex polynomials and splines. Informatik-Sonderkolloquium. Karlsruher Institut für Technologie, Karlsruhe, Germany, 13 October 2011.

Speleers, H. (2011). Numerical solution of PDEs using Powell-Sabin B-splines. Seminar. Institut für Angewandte Geometrie, Johannes Kepler Universität, Linz, Austria, 5 May 2011.

Speleers, H. (2011). Convex splines over triangulations. Seminar. Università di Roma “Tor Vergata”, Rome, Italy, 29 March, 2011.

Speleers, H. (2010). Convex splines over triangulations. Computational Analysis Seminar. Vanderbilt University, Nashville, Tennessee, USA, April 30, 2010.

Speleers, H. (2009). Nonnegativity preserving macro-element interpolation. Computational Analysis Seminar. Vanderbilt University, Nashville, Tennessee, USA, October 30, 2009.

Speleers, H. (2008). From PS splines to QHPS splines. Computational Analysis Seminar. Vanderbilt University, Nashville, Tennessee, USA, September 16, 2008.

Speleers, H. (2005). Powell-Sabin splines. PhD Symposium. Leuven, Belgium, April 20, 2005.

TH (Thesis)

Speleers, H., Vandewalle, S. (sup.), Dierckx, P. (sup.) (2008). Construction, Analysis and Application of Powell-Sabin Spline Finite Elements (Constructie, analyse en toepassing van Powell-Sabin spline eindige elementen).

IR (Internal report)

Speleers, H. (2012). Multivariate normalized Powell-Sabin B-splines and quasi-interpolants. TW Reports, TW609, 23 pp. Leuven, Belgium: Department of Computer Science, KU Leuven.

Speleers, H. (2012). Isogeometric analysis with Powell-Sabin splines. TW Reports, TW606, 40 pp. Leuven, Belgium: Department of Computer Science, KU Leuven.

Speleers, H. (2011). Construction of normalized B-splines for a family of smooth spline spaces over Powell-Sabin triangulations. TW Reports, TW600, 27 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H. (2011). On multivariate polynomials in Bernstein-Bézier form and tensor algebra. TW Reports, TW590, 16 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H. (2011). Interpolation with quintic Powell-Sabin splines. TW Reports, TW583, 21 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Schumaker, L., Speleers, H. (2010). Convexity preserving splines over triangulations. TW Reports, TW564, 21 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H. (2010). A normalized basis for quintic Powell-Sabin splines. TW Reports, TW556, 24 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H. (2009). A normalized basis for reduced Clough-Tocher splines. TW Reports, TW546, 15 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Schumaker, L., Speleers, H. (2009). Nonnegativity preserving macro-element interpolation of scattered data. TW Reports, TW543, 24 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H., Dierckx, P., Vandewalle, S. (2008). On the graphical display of Powell-Sabin splines: a comparison of three piecewise linear approximations. TW Reports, TW515, 14 pp. Leuven, Belgium: Department of Computer Science, K.U.Leuven.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). On the Lp-stability of quasi-hierarchical Powell-Sabin B-splines. TW Reports, TW492, 14 pp: K.U.Leuven, Department of Computer Science.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). Computer aided geometric design with Powell-Sabin splines. TW Reports, TW495, 35 pp: K.U.Leuven, Department of Computer Science.

Speleers, H., Dierckx, P., Vandewalle, S. (2007). Multigrid methods with Powell-Sabin splines. TW Reports, TW488, 17 pp: K.U.Leuven, Department of Computer Science.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Quasi-hierarchical Powell-Sabin B-splines. TW Reports, TW472, 23 pp: K.U.Leuven, Department of Computer Science.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Weight control for modelling with NURPS surfaces. TW Reports, TW473, 8 pp: K.U.Leuven, Department of Computer Science.

Speleers, H., Dierckx, P., Vandewalle, S. (2006). Powell-Sabin splines with boundary conditions for polygonal and non-polygonal domains. TW Reports, TW452, 20 pp: Department of Computer Science, K.U.Leuven, Leuven, Belgium.

Speleers, H., Dierckx, P., Vandewalle, S. (2005). Local subdivision of Powell-Sabin splines. TW Reports, TW424, 23 pp: Department of Computer Science, K.U.Leuven, Leuven, Belgium.

Speleers, H., Dierckx, P., Vandewalle, S. (2004). Numerical solution of partial differential equations with Powell-Sabin splines. TW Reports, TW408, 15 pp: Department of Computer Science, K.U.Leuven, Leuven, Belgium.

This list is generated from Lirias and contains data from Lirias as it is entered and validated by the researcher.

Newsflash

Two OPTEC professors have been awarded three "Gouden Krijtjes", the yearly teaching awards given by the organization of engineering students (vtk). Prof. Lombaert was awarded the prize for the best course in civil engineering, and Prof. Diehl the prizes for the best professor and the best course in mathematical engineering (where he teaches numerical optimization). They received these awards at the yearly "proffentap" where experienced students taught them how to draft beer professionally.