Rosa Winter

Max-Planck-Institut für Mathematik in den Naturwissenschaften
Office G3 03
Inselstraße 22
04103 Leipzig
+49 341 9959 806
rosa.winter (at) mis.mpg.de
RosaWinter
I am a postdoctoral researcher in the Nonlinear Algebra group of Bernd Sturmfels at the Max Planck Institute for Mathematics in the Sciences in Leipzig. Before this I was a PhD student under the supervision of Martin Bright and Ronald van Luijk at Universeit Leiden. In my thesis I worked on the density of rational points and the configurations of lines on del Pezzo surfaces of degree one, and their relation to torsion points on elliptic fibrations.

Here is my CV (updated September 2020).

Preprints

  • 3. Fields of definition of elliptic fibrations on covers of certain extremal rational ellipic surfaces. With V. Cantoral-Farfán, A. Garbagnati, C. Salgado, and A. Trbović. To appear in Women in Numbers Europe III: Research Directions in Number Theory. arXiv link (2020).
  • 2. Concurrent exceptional curves on del Pezzo surfaces of degree one. With R. van Luijk. Submitted. arXiv link (2019), with magma code 1 and magma code 2.
  • 1. The action of the Weyl group on the E8 root system. With R. van Luijk. Submitted. arXiv link (2019), with magma code.

Invited talks

  • 22/09/2020 Arithmetic Geometry Seminar (online), Ohio State University.
  • 03/06/2020 PhD colloquium (online), Universiteit Leiden. What I work on.
  • 14/04/2020 Nonlinear Algebra Seminar Online, MPI-MiS Leipzig. Rational points on del Pezzo surfaces of degree one.
  • 26/02/2020 Heilbronn Number Theory Seminar, University of Bristol. Density of rational points on a family of del Pezzo surfaces of degree one.
  • 07/02/2020 Intercity Number Theory Seminar, Universiteit Leiden. Density of rational points on a family of del Pezzo surfaces of degree one.
  • 18/12/2019 Seminario di Natale, Università degli Studi di Milano. Density of rational points on a family of del Pezzo surfaces of degree one.
  • 11/12/2019 Number Theory Seminar, University of Copenhagen. Density of rational points on a family of del Pezzo surfaces of degree one.
  • 06/03/2019 Number/Representation Theory seminar, University of Toronto. Concurrent lines on del Pezzo surfaces of degree one.
  • 26/06/2018 Konstanz Women in Mathematics lecture series, Universität Konstanz. Configurations of lines on del Pezzo surfaces.
  • 31/05/2018 Bernoullis Tafelrunde Graduate Student Seminar, Universität Basel. Configurations of lines on del Pezzo surfaces.

Contributed talks and posters

  • 18/06/2018 Géométrie Algébrique en Liberté (GAeL XXVI), Université de Strasbourg. Concurrent exceptional curves on del Pezzo surfaces of degree one (poster).
  • 21/03/2018 Tropical Geometry Seminar, Universiteit Leiden. Counting Curves.
  • 11/09/2017 Diophantine problems (DIOP), University of Manchester. Concurrent exceptional curves on del Pezzo surfaces of degree one (poster).
  • 07/07/2017 XXX-èmes Journées Arithmétiques, Université de Caen Normandie. Concurrent exceptional curves on del Pezzo surfaces of degree one.
  • 15/02/2017 Seminar 'Obstructions to local-global principles', Universiteit Leiden. Introduction to local-global principles: the Hasse principle and weak approximation.
  • 02/11/2016 Seminar 'Good reduction of Abelian Varieties', University of Amsterdam. Isogenies.

Teaching


From 2014 until 2016 I was a mathematics teacher at Calandlyceum Amsterdam, as part of the traineeship Eerst de Klas.

Seminars I organized

Magma code