- E-Mail:
- christian.offen@uni-paderborn.de
- ORCID:
- 0000-0002-5940-8057
-
- Office Address:
-
Technologiepark 21
33100 Paderborn - Room:
- TP21.1.14
About Christian Offen
Curriculum Vitae
01.08.2025: Assistant Professor (Research and Teaching, tenure-track)
University of Birmingham, School of Mathematics, Edgbaston, Birmingham, UK
Profile page - University of Birmingham
01.05.2025 - 31.07.2025: Postdoctoral Researcher
Paderborn University, Department of Mathematics. Group Numerical Mathematics and Control (Prof. Sina Ober-Blöbaum).
15.08.2022 - 30.04.2024: Senior Researcher
Paderborn University, Institute of Mathematics, project "Photonic Quantum Computing", Ministry of Culture and Science of the State of North Rhine-Westphalia, group Numerical Mathematics and Control (Prof. Sina Ober-Blöbaum)
24.08.2020 - 14.08.2022: Postdoctoral Researcher
Paderborn University, Department of Mathematics. Group Numerical Mathematics and Control (Prof. Sina Ober-Blöbaum).
04.11.2016 - 23.09.2020: PhD in Mathematics
Massey University, New Zealand. Thesis: Analysis of Hamiltonian boundary value problems and symplectic integration, advisor: Dist. Prof. Robert McLachlan. (2019 - Hatherton Award, 2020 - Dean's List of Exceptional Theses)
10/2014 - 09/2016: Master of Science Mathematics
University of Hamburg, Master studies. Thesis: Seiberg-Witten Curves and Parabolic Affine Spheres (Differential Geometry), advisor: Prof. Dr. Vicente Cortés
10/2011 - 09/2014: Bachelor of Science Mathematics
University of Hamburg, Bachelor studies. Thesis: Classification of solutions of the Monge-Ampère equation in the finitely punctured plane (Differential Geometry), advisor: Prof. Dr. Vicente Cortés
21.08.2020: Thesis Award
Honour of inclusion of my doctoral thesis in the Dean’s List of Exceptional Doctoral Theses as the only thesis in the subject of Mathematics in 2020.
17.10.2019: Hatherton Award 2019
Best scientific paper by a PhD student at any New Zealand university in chemical sciences, physical sciences, mathematical and information sciences - Royal Society of New Zealand (Hatherton Award 2019)
06.12.2017: Aitken Prize (Honorary mention)
Honorary mention in the Aitken Prize of the New Zealand Mathematical Society for the talk "Bifurcations of solutions to Hamiltonian boundary value problems"
01.05.2014: German Academic Scholarship Foundation
Award of a scholarship by the German Academic Scholarship Foundation (Studienstiftung des deutschen Volkes)
17.05.2011: Award by the German Mathematical Society (Abiturpreis)
Award for outstanding highschool graduates by the German Mathematical Society
Research
Research Interests
- Structure-preserving numerical integration
- Data-driven models for dynamical systems (especially Hamiltonian/Lagrangian systems)
- Kernel-based methods
- Multi-symplectic integration
- Lie group methods
- Bifurcation theory
Publications
Latest Publications
Adaptive higher order reversible integrators for memory efficient deep learning
S. Maslovskaya, S. Ober-Blöbaum, C. Offen, P. Singh, B.E. Wembe Moafo, (2025).
Multiphoton, multimode state classification for nonlinear optical circuits
D.A. Kopylov, C. Offen, L. Ares, B.E. Wembe Moafo, S. Ober-Blöbaum, T. Meier, P.R. Sharapova, J. Sperling, Physical Review Research 7 (2025).
Multiphoton, multimode state classification for nonlinear optical circuits
T. Meier, P.R. Sharapova, J. Sperling, S. Ober-Blöbaum, B.E. Wembe Moafo, C. Offen, (2025).
Multiphoton, multimode state classification for nonlinear optical circuits
D. Kopylov, C. Offen, L. Ares, B.E. Wembe Moafo, S. Ober-Blöbaum, T. Meier, P. Sharapova, J. Sperling, (n.d.).
Machine learning of continuous and discrete variational ODEs with convergence guarantee and uncertainty quantification
C. Offen, Mathematics of Computation (2025).
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