Annette Bachmayr (geb. Maier)

Mathematisches Institut
Universität Bonn
Endenicher Allee 60
53115 Bonn

Office: N2.004
Phone: +49-228-73-62283
E-Mail: bachmayr"at"

I am currently a PostDoc at the Mathematical Institute of the University of Bonn.
My research project Galois groups of differential and difference equations is
funded by the DFG.

Research interests

  • Differential Galois theory
  • Galois theory of difference equations
  • Algebraic groups and difference algebraic groups


  • Large Fields in Differential Galois Theory. Joint with David Harbater, Julia Hartmann and Florian Pop. Preprint.
  • Differential Embedding Problems over Laurent series fields. Joint with David Harbater and Julia Hartmann. Preprint.
  • Torsors for Difference Algebraic Groups. Joint with Michael Wibmer. Preprint.
  • Frobenius Difference Equations with Classical Groups as Galois groups. Preprint.


  • Differential Embedding Problems over Complex Function Fields. Joint with David Harbater, Julia Hartmann and Michael Wibmer. Documenta Mathematica (to appear) . Preprint.
  • New classes of parameterized differential Galois groups. Mathematische Zeitschrift 288, 361-381, 2018. Link.
  • Differential Galois Groups over Laurent Series Fields. Joint with David Harbater and Julia Hartmann. Proceedings of the London Mathematical Society 112 (3): 455-476, 2016. Link.
  • On the parameterized differential inverse Galois problem over k((t))(x). Journal of Algebra 428, 43-53, 2015. Link.
  • Embedding problems of division algebras. Communications in Algebra 43(4), 1472-1486, 2015. Link.
  • A Difference Version of Nori's Theorem. Mathematische Annalen 359(3), 759-784, 2014. Link.
  • Additive Polynomials for finite groups of Lie type. Joint with Maximilian Albert. Israel J. Math. 186(1), 125-195, 2011. Link.


  • Difference equations with semisimple Galois groups in positive characteristic. Dissertation. Link.