Dr. Christina Röhrig

AG Algebra

Arbeitsgebiet(e)

AG Algebra

Kontakt

work +49 6151 16-21488

Work S2|15 310
Schlossgartenstraße 7
64289 Darmstadt

Since April 2022 I am a member of the research project CRC 326 – GAUS (Geometry and Arithmetic of Uniformized Structures), working in the group of Prof. Dr. Yingkun Li at TU Darmstadt. Previously, I obtained my PhD under the supervision of Prof. Dr. Sander Zwegers at the University of Cologne. My research area is the theory of elliptic and Siegel modular forms, in particular I work with theta series for indefinite quadratic forms.

In the winter semester 22/23 I am co-organizing the online seminar International Seminar on Automorphic Forms together with Claire Burrin, Yingkun Li and Riccardo Zuffetti.

  • C. Roehrig, Siegel theta series for indefinite quadratic forms, Res. Number Theory 7(3) (2021) (Link)
  • C. Roehrig, Siegel theta series for quadratic forms of signature (m-1,1), submitted (arXiv)
  • C. Roehrig and S. Zwegers, Theta series for quadratic forms of signature (n-1,1) with (spherical) polynomials, Int. J. Number Theory 18(7) (2022), (Link)
  • C. Roehrig and S. Zwegers, Theta series for quadratic forms of signature (n-1,1) with (spherical) polynomials II, preprint (arXiv)
  • Course and Teaching assistant for the lectures Lineare Algebra II, Algebra, Elementare Zahlentheorie, Modulformen, Thetafunktionen and Lineare Algebra I (2019-2022 at the University of Cologne)
  • Course assistant for the lectures Elementare Zahlentheorie and Lineare Algebra I (2018-2019 at the University of Cologne)
  • Supervising the seminars Zahlentheorie und Kryptologie, Spezielle Funktionen and Modulformen (2017-2019 at the University of Cologne)
  • Second reviewer for Bachelor theses in various number theoretic topics (2018-2022 at the University of Cologne)
01/2023 AMS Special Session on Quadratic Forms, Modular Forms, and Applications at the JMM in Boston
10/2022 ENTR Workshop, Conference in Darmstadt (Speed Talk)
08/2022 Modular Forms in Number Theory and Beyond, Conference in Bielefeld
06/2022 ENTR Seminar (Online)
04/2022 Virtual Joint Mathematics Meeting – AMS Special Session on Quadratic Forms, Theta Functions and Modularity (Online)
02/2022 Purdue Analytic Number Theory and Harmonic Analysis (PANTHA) Seminar at Purdue University (Online)
09/2021 Women in Automorphic Forms, Conference in Bielefeld (Speed Talk)
06/2021 Number Theory Lunch Seminar at the MPIM Bonn (Online)
02/2021 Heilbronn Number Theory Seminar at the University of Bristol (Online)
02/2021 Algebra and Number Theory Seminar at the University College of Dublin (Online)
11/2020 International Seminar on Automorphic Forms (Online)
09/2019 DMV Jahrestagung, Conference in Karlsruhe (Speed Talk)
09/2018 Women in Automorphic Forms, Conference in Darmstadt (Speed Talk)
03/2022 Organizing the cryptology workshop Der Spionageworkshop für geheime Nachrichten for the KölnerKinderUni (joint with Giulia Cesana)
12/2019 Reviewer for The Ramanujan Journal
05/2018 – 12/2019 Member of the advisory board of Hypatia, the Network for Equality in the Fields of Mathematics and Computer Science at the University of Cologne
12/2011 – 01/2015 Member of the student body at the Department of Mathematics (Elected member in the Council of Student Representatives, Student representative in an appointment committee, Organizational tasks and Counseling for students)