Christian Offen

Numerik und Steuerung
christian.offen@uni-paderborn.de
ID
85279

22 Publications

Mark all

[22]
2025 | Preprint | LibreCat-ID: 58544 | OA
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.).
LibreCat | Download (ext.) | arXiv
 
[21]
2025 | Preprint | LibreCat-ID: 53805 | OA
Machine learning of continuous and discrete variational ODEs with convergence guarantee and uncertainty quantification
C. Offen, (n.d.).
LibreCat | Files available | arXiv
 
[20]
2024 | Journal Article | LibreCat-ID: 46469 | OA
Learning of discrete models of variational PDEs from data
C. Offen, S. Ober-Blöbaum, Chaos 34 (2024).
LibreCat | Files available | DOI | arXiv
 
[19]
2024 | Preprint | LibreCat-ID: 55159 | OA
Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification
C. Offen, (n.d.).
LibreCat | Files available | arXiv
 
[18]
2023 | Conference Paper | LibreCat-ID: 34135 | OA
Discrete Lagrangian Neural Networks with Automatic Symmetry Discovery
Y. Lishkova, P. Scherer, S. Ridderbusch, M. Jamnik, P. Liò, S. Ober-Blöbaum, C. Offen, in: IFAC-PapersOnLine, Elsevier, 2023, pp. 3203–3210.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[17]
2023 | Conference Paper | LibreCat-ID: 42163 | OA
Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves
C. Offen, S. Ober-Blöbaum, in: F. Nielsen, F. Barbaresco (Eds.), Geometric Science of Information, Springer, Cham., 2023, pp. 569–579.
LibreCat | Files available | DOI | arXiv
 
[16]
2023 | Journal Article | LibreCat-ID: 29240 | OA
Variational Learning of Euler–Lagrange Dynamics from Data
S. Ober-Blöbaum, C. Offen, Journal of Computational and Applied Mathematics 421 (2023) 114780.
LibreCat | Files available | DOI | arXiv
 
[15]
2023 | Journal Article | LibreCat-ID: 29236 | OA
Backward error analysis for conjugate symplectic methods
R. McLachlan, C. Offen, Journal of Geometric Mechanics 15 (2023) 98–115.
LibreCat | Files available | DOI | arXiv
 
[14]
2023 | Journal Article | LibreCat-ID: 37654 | OA
Hamiltonian Neural Networks with Automatic Symmetry Detection
E. Dierkes, C. Offen, S. Ober-Blöbaum, K. Flaßkamp, Chaos 33 (2023).
LibreCat | Files available | DOI | arXiv
 
[13]
2023 | Journal Article | LibreCat-ID: 21600
Efficient time stepping for numerical integration using reinforcement learning
M. Dellnitz, E. Hüllermeier, M. Lücke, S. Ober-Blöbaum, C. Offen, S. Peitz, K. Pfannschmidt, SIAM Journal on Scientific Computing 45 (2023) A579–A595.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[12]
2022 | Journal Article | LibreCat-ID: 19941 | OA
Backward error analysis for variational discretisations of partial differential equations
R.I. McLachlan, C. Offen, Journal of Geometric Mechanics 14 (2022) 447–471.
LibreCat | Files available | DOI | arXiv
 
[11]
2022 | Journal Article | LibreCat-ID: 23382 | OA
Symplectic integration of learned Hamiltonian systems
C. Offen, S. Ober-Blöbaum, Chaos: An Interdisciplinary Journal of Nonlinear Science 32(1) (2022).
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[10]
2021 | Conference Paper | LibreCat-ID: 22894 | OA
Bifurcation preserving discretisations of optimal control problems
C. Offen, S. Ober-Blöbaum, 54(19) (2021) 334–339.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[9]
2021 | Conference Paper | LibreCat-ID: 21572
Learning ODE Models with Qualitative Structure Using Gaussian Processes
S. Ridderbusch, C. Offen, S. Ober-Blöbaum, P. Goulart, in: 2021 60th IEEE Conference on Decision and Control (CDC), IEEE, 2021, p. 2896.
LibreCat | Files available | DOI | arXiv
 
[8]
2020 | Journal Article | LibreCat-ID: 19938
Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation
R.I. McLachlan, C. Offen, Foundations of Computational Mathematics 20 (2020) 1363–1400.
LibreCat | DOI | Download (ext.)
 
[7]
2020 | Journal Article | LibreCat-ID: 19939 | OA
Detection of high codimensional bifurcations in variational PDEs
L.M. Kreusser, R.I. McLachlan, C. Offen, Nonlinearity 33 (2020) 2335–2363.
LibreCat | DOI | Download (ext.)
 
[6]
2020 | Dissertation | LibreCat-ID: 19947 | OA
Analysis of Hamiltonian boundary value problems and symplectic integration
C. Offen, Analysis of Hamiltonian Boundary Value Problems and Symplectic Integration, Massey University, Palmerston North, New Zealand, 2020.
LibreCat | Files available | Download (ext.)
 
[5]
2019 | Journal Article | LibreCat-ID: 19945 | OA
Symplectic integration of PDEs using Clebsch variables
R.I. McLachlan, C. Offen, B.K. Tapley, Journal of Computational Dynamics 6 (2019) 111–130.
LibreCat | DOI | Download (ext.)
 
[4]
2018 | Journal Article | LibreCat-ID: 19935
Bifurcation of solutions to Hamiltonian boundary value problems
R.I. McLachlan, C. Offen, Nonlinearity (2018) 2895–2927.
LibreCat | DOI | Download (ext.)
 
[3]
2018 | Journal Article | LibreCat-ID: 19937
Symplectic integration of boundary value problems
R.I. McLachlan, C. Offen, Numerical Algorithms (2018) 1219–1233.
LibreCat | DOI | Download (ext.)
 
[2]
2018 | Preprint | LibreCat-ID: 19940 | OA
Local intersections of Lagrangian manifolds correspond to catastrophe theory
C. Offen, ArXiv:1811.10165 (n.d.).
LibreCat | Files available | arXiv
 
[1]
2018 | Journal Article | LibreCat-ID: 19943 | OA
Hamiltonian boundary value problems, conformal symplectic symmetries, and conjugate loci
R.I. McLachlan, C. Offen, New Zealand Journal of Mathematics 48 (2018) 83–99.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
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22 Publications

Mark all

[22]
2025 | Preprint | LibreCat-ID: 58544 | OA
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.).
LibreCat | Download (ext.) | arXiv
 
[21]
2025 | Preprint | LibreCat-ID: 53805 | OA
Machine learning of continuous and discrete variational ODEs with convergence guarantee and uncertainty quantification
C. Offen, (n.d.).
LibreCat | Files available | arXiv
 
[20]
2024 | Journal Article | LibreCat-ID: 46469 | OA
Learning of discrete models of variational PDEs from data
C. Offen, S. Ober-Blöbaum, Chaos 34 (2024).
LibreCat | Files available | DOI | arXiv
 
[19]
2024 | Preprint | LibreCat-ID: 55159 | OA
Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification
C. Offen, (n.d.).
LibreCat | Files available | arXiv
 
[18]
2023 | Conference Paper | LibreCat-ID: 34135 | OA
Discrete Lagrangian Neural Networks with Automatic Symmetry Discovery
Y. Lishkova, P. Scherer, S. Ridderbusch, M. Jamnik, P. Liò, S. Ober-Blöbaum, C. Offen, in: IFAC-PapersOnLine, Elsevier, 2023, pp. 3203–3210.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[17]
2023 | Conference Paper | LibreCat-ID: 42163 | OA
Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves
C. Offen, S. Ober-Blöbaum, in: F. Nielsen, F. Barbaresco (Eds.), Geometric Science of Information, Springer, Cham., 2023, pp. 569–579.
LibreCat | Files available | DOI | arXiv
 
[16]
2023 | Journal Article | LibreCat-ID: 29240 | OA
Variational Learning of Euler–Lagrange Dynamics from Data
S. Ober-Blöbaum, C. Offen, Journal of Computational and Applied Mathematics 421 (2023) 114780.
LibreCat | Files available | DOI | arXiv
 
[15]
2023 | Journal Article | LibreCat-ID: 29236 | OA
Backward error analysis for conjugate symplectic methods
R. McLachlan, C. Offen, Journal of Geometric Mechanics 15 (2023) 98–115.
LibreCat | Files available | DOI | arXiv
 
[14]
2023 | Journal Article | LibreCat-ID: 37654 | OA
Hamiltonian Neural Networks with Automatic Symmetry Detection
E. Dierkes, C. Offen, S. Ober-Blöbaum, K. Flaßkamp, Chaos 33 (2023).
LibreCat | Files available | DOI | arXiv
 
[13]
2023 | Journal Article | LibreCat-ID: 21600
Efficient time stepping for numerical integration using reinforcement learning
M. Dellnitz, E. Hüllermeier, M. Lücke, S. Ober-Blöbaum, C. Offen, S. Peitz, K. Pfannschmidt, SIAM Journal on Scientific Computing 45 (2023) A579–A595.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[12]
2022 | Journal Article | LibreCat-ID: 19941 | OA
Backward error analysis for variational discretisations of partial differential equations
R.I. McLachlan, C. Offen, Journal of Geometric Mechanics 14 (2022) 447–471.
LibreCat | Files available | DOI | arXiv
 
[11]
2022 | Journal Article | LibreCat-ID: 23382 | OA
Symplectic integration of learned Hamiltonian systems
C. Offen, S. Ober-Blöbaum, Chaos: An Interdisciplinary Journal of Nonlinear Science 32(1) (2022).
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[10]
2021 | Conference Paper | LibreCat-ID: 22894 | OA
Bifurcation preserving discretisations of optimal control problems
C. Offen, S. Ober-Blöbaum, 54(19) (2021) 334–339.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[9]
2021 | Conference Paper | LibreCat-ID: 21572
Learning ODE Models with Qualitative Structure Using Gaussian Processes
S. Ridderbusch, C. Offen, S. Ober-Blöbaum, P. Goulart, in: 2021 60th IEEE Conference on Decision and Control (CDC), IEEE, 2021, p. 2896.
LibreCat | Files available | DOI | arXiv
 
[8]
2020 | Journal Article | LibreCat-ID: 19938
Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation
R.I. McLachlan, C. Offen, Foundations of Computational Mathematics 20 (2020) 1363–1400.
LibreCat | DOI | Download (ext.)
 
[7]
2020 | Journal Article | LibreCat-ID: 19939 | OA
Detection of high codimensional bifurcations in variational PDEs
L.M. Kreusser, R.I. McLachlan, C. Offen, Nonlinearity 33 (2020) 2335–2363.
LibreCat | DOI | Download (ext.)
 
[6]
2020 | Dissertation | LibreCat-ID: 19947 | OA
Analysis of Hamiltonian boundary value problems and symplectic integration
C. Offen, Analysis of Hamiltonian Boundary Value Problems and Symplectic Integration, Massey University, Palmerston North, New Zealand, 2020.
LibreCat | Files available | Download (ext.)
 
[5]
2019 | Journal Article | LibreCat-ID: 19945 | OA
Symplectic integration of PDEs using Clebsch variables
R.I. McLachlan, C. Offen, B.K. Tapley, Journal of Computational Dynamics 6 (2019) 111–130.
LibreCat | DOI | Download (ext.)
 
[4]
2018 | Journal Article | LibreCat-ID: 19935
Bifurcation of solutions to Hamiltonian boundary value problems
R.I. McLachlan, C. Offen, Nonlinearity (2018) 2895–2927.
LibreCat | DOI | Download (ext.)
 
[3]
2018 | Journal Article | LibreCat-ID: 19937
Symplectic integration of boundary value problems
R.I. McLachlan, C. Offen, Numerical Algorithms (2018) 1219–1233.
LibreCat | DOI | Download (ext.)
 
[2]
2018 | Preprint | LibreCat-ID: 19940 | OA
Local intersections of Lagrangian manifolds correspond to catastrophe theory
C. Offen, ArXiv:1811.10165 (n.d.).
LibreCat | Files available | arXiv
 
[1]
2018 | Journal Article | LibreCat-ID: 19943 | OA
Hamiltonian boundary value problems, conformal symplectic symmetries, and conjugate loci
R.I. McLachlan, C. Offen, New Zealand Journal of Mathematics 48 (2018) 83–99.
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
Marked Publication(s)

Search

Filter Publications

Display / Sort

Citation Style: Default

Export / Embed