Thomas Sonar

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Thomas Sonar 2009

Thomas Helmut Sonar (born February 27, 1958 in Sehnde ) is a German mathematician who deals with numerical mathematics (numerics of partial differential equations , fluid mechanics ) and the history of mathematics .

Life

Thomas Sonar initially studied mechanical engineering at the Hanover University of Applied Sciences , which was followed by a degree in mathematics at the Leibniz University of Hanover from 1980. After graduating in 1986, he went to the DLR in Braunschweig, where he dealt with aerodynamic problems and, among other things, worked on flow simulations for the HERMES space glider project. He received his doctorate in 1991 in Stuttgart under Wolfgang Wendland, where he wrote his dissertation on nonlinear dissipation models and entropy production in finite difference methods, in part at the University of Oxford with Keith William Morton . As a post-doctoral student he was at the DLR Institute of Fluid Mechanics in Göttingen , where he invented the TAU (Triangular Adaptive Upwind) process. In 1995 he completed his habilitation at the TH Darmstadt with Willi Törnig , Robert Schaback and Peter Rentrop ( multivariate reconstruction methods for the numerical calculation of hyperbolic conservation equations ). In 1996 he became a professor at the University of Hamburg as the successor to Rainer Ansorge and in 1999 at the University of Braunschweig , where he is professor for industrial mathematics and head of the partial differential equations department at the Institute for Computational Mathematics . In 2003, he turned down an offer from the Technical University of Kaiserslautern with a management position at the Fraunhofer Institute for Industrial Mathematics . In 2004 he founded the Mathe-Lok teacher training center at the TU Braunschweig.

He also deals with the history of mathematics, for example Leonhard Euler , Richard Dedekind , Henry Briggs , Carl Friedrich Gauß or the priority dispute between Isaac Newton and Gottfried Wilhelm Leibniz , and gave lectures on this in Hamburg and Braunschweig.

In 2003 he gave the Gauss lecture ( entropy and dissipation - discrete models of nonlinear transport processes ) in Göttingen and in 2009 the historical introductory lecture ( Carl Friedrich Gauß as a number calculator ) of the Gauß lecture in Aachen.

Sonar was a member from 2005 to 2020 and has been a corresponding member of the Braunschweigische Wissenschaftlichen Gesellschaft (BWG) since 2020 at its own request . He is a corresponding member of the Academy of Sciences in Hamburg .

Fonts (selection)

  • with Klaus Hannemann: The calculation of reactive hypersonic flows. in: Spectrum of Science. July 1996, ISSN  0170-2971 .
  • Multi-dimensional ENO methods in: Teubner: Advances in Numerical Mathematics. Springer Verlag, Berlin 1997, ISBN 3-519-02724-0 .
  • Introduction to Analysis. With special consideration of their historical development for students of the teaching profession. Vieweg, Braunschweig 1999, ISBN 3-528-03133-6 .
  • with Rainer Ansorge, Kai Rothe, Hans Joachim Oberle: Mathematics for engineers. Volume 3. Exercises and solutions. Wiley / VCH, Berlin 2000, ISBN 3-527-40308-6 .
  • Applied mathematics, modeling and computer science. Vieweg, Braunschweig 2001, ISBN 3-528-03179-4 .
  • Turbulence around fluid mechanics. Spectrum of Science, April 2009, ISSN  0170-2971 .
  • with G. Biegel, Karin Reich (editor): Historical aspects in mathematics lessons at school and university. Termessos Verlag, 2008 ISBN 978-3-938016-08-4 .
  • with Rainer Ansorge: Mathematical models of fluid dynamics: Modeling, theory, basic numerical facts. An introduction. Wiley / VCH, Berlin 2009, ISBN 978-3-527-62796-7 .
  • 3000 years of analysis. Springer Verlag, Berlin 2011, ISBN 978-3-642-17203-8 .
  • as editor: Jewish life and academic milieu in Braunschweig. Nellie and Kurt Otto Friedrich's scientific achievements and illegal love in turbulent times. Internationaler Verlag der Wissenschaft, Peter Lang, Frankfurt / Main 2012, ISBN 978-3-631-61614-7 .
  • The history of the priority dispute between Leibniz and Newton. Springer Verlag, Berlin 2016, ISBN 978-3-662-48861-4 .

Web links

Commons : Thomas Sonar (mathematician)  - collection of images, videos and audio files

Individual evidence

  1. ^ G. Biegel, A. Klein, Th. Sonar (editor) Leonhard Euler (1707–1783). Mathematician-mechanic-physicist. in: Braunschweig Contributions to the History of Science. Volume 3, 2008.
  2. ↑ H. Harborth, M. Heuer, H. Löwe, R. Löwen, Th. Sonar memorial for Richard Dedekind. IHK Braunschweig 2007.
  3. ↑ Sonar The Pious Table Maker. The early works of Henry Briggs. Logos Verlag, 2002.
  4. ↑ T. Sonar: The history of the priority dispute between Leibniz and Newton. Springer Verlag, Berlin 2016, ISBN 978-3-662-48861-4 .
  5. ↑ The calculation of reactive hypersonic flows. on Spektrum.de
  6. ↑ Essentially Non Oscillatory Schemes, strongly non-linear, high-resolution methods developed in 1987 by Ami Harten, Stanley Osher , Björn Engquist , Sukumar Chakravarthy for hyperbolic conservation laws.
  7. ↑ Turbulence around fluid mechanics. on Spektrum.de
personal data
SURNAME Sonar, Thomas
ALTERNATIVE NAMES Sonar, Thomas Helmut (full name)
BRIEF DESCRIPTION German mathematician
DATE OF BIRTH February 27, 1958
PLACE OF BIRTH Sighted