Vrije Universiteit Brussel

Doryan Temmerman

Post-Doc of Eric Jespers

Personal information

My coordinates

  • Address: Vrije Universiteit Brussel
    Pleinlaan 2
    B-1050 Brussels
  • Office: 6G322a
  • Phone: +32 2 629 35 51
  • E-mail: dtemmerm@vub.be
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Research interests

  • Group Theory: geometric group theory (actions of groups on graphs, trees CAT(0) spaces), amalgamated products in (algebraic) groups, structure of the unit group of a group ring
  • Ring Theory: algebraic properties of group rings


  • Higher modular groups as amalgamated products and a dichotomy for integral group rings,
    joint work with A. Bächle, G. Janssens, E. Jespers and A. Kiefer,
  • Abelianization and fixed point properties of linear groups and units in integral group rings,
    joint work with A. Bächle, G. Janssens, E. Jespers and A. Kiefer,
  • Free products in the unit group of the integral group ring of a finite group,
    joint work with G. Janssens and E. Jespers,
    Proc. Amer. Math. Soc 145 (2017), no. 7, 2771-2783


  • Fixed point properties for low rank linear groups over orders and applications to integral group rings
    Doctoral thesis, Vrije Universiteit Brussel, 2019, supervisors: prof. E. Jespers and dr. Geoffrey Janssens pdf
  • Classifying Finite Subgroups of Rational Division Algebras.
    Master thesis, Vrije Universiteit Brussel, 2015, promotor: prof. E. Jespers. pdf
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Selected Talks


WPO Lineaire Algebra: stelsels, matrices en afbeeldingen

  • Titularis: Stefaan Caenepeel
  • Studenten: 1BA Fysica en 1BA Wiskunde
  • Oefeningen: 1ste semester

WPO Differentiaalmeetkunde

  • Titularis: Ann Dooms
  • Studenten: 2BA Wiskunde en 3BA Fysica
  • Oefeningen: 1ste semester

WPO Wiskunde: Calculus en Lineaire Algebra

  • Titularis: Dominique Maes
  • Studenten: Schakelprogramma Computerwetenschappen
  • Oefeningen: 2de semester

Previous Teaching

  • WPO Galois Theorie, 3BA Wiskunde, 2015-2016, 2016-2017.
  • WPO Lineaire Algebra: stelsels, matrices en afbeeldingen, 1BA Fysica en 1BA Wiskunde, 2015-2016, 2016-2017.
  • WPO Wiskunde: Calculus en Lineaire Algebra, Schakelprogramma Computerwetenschappen, 2016-2017.
  • WPO Wiskunde: Calculus en Lineaire Algebra, 1BA Computerwetenschappen, 2015-2016.
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  • Voorbereidingscursus Wiskunde voor Exacte Wetenschappen, 2012, 2013, 2014, 2015


  • Platonische en Archimedische lichamen met behulp van Zometool®


If I were a Springer-Verlag Graduate Text in Mathematics, I would be J.-P. Serre's Linear Representations of Finite Groups.

My creator is a Professor at the College de France. He has previously published a number of books, including Groupes Algebriques et Corps de Classes, Corps Locaux, and Cours d'Arithmetique (A Course in Arithmetic, published by Springer-Verlag as Vol. 7 in the Graduate Texts in Mathematics).

Which Springer GTM would you be? The Springer GTM Test

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