15 Publications

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[15]
2022 | Journal Article | LibreCat-ID: 23382 | OA
@article{Offen_Ober-Blöbaum_2022, title={Symplectic integration of learned Hamiltonian systems}, volume={32(1)}, DOI={10.1063/5.0065913}, journal={Chaos: An Interdisciplinary Journal of Nonlinear Science}, publisher={AIP}, author={Offen, Christian and Ober-Blöbaum, Sina}, year={2022} }
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[14]
2022 | Journal Article | LibreCat-ID: 19941 | OA
@article{McLachlan_Offen_2022, title={Backward error analysis for variational discretisations of partial  differential equations}, volume={14}, DOI={10.3934/jgm.2022014}, number={3}, journal={Journal of Geometric Mechanics}, publisher={AIMS}, author={McLachlan, Robert I and Offen, Christian}, year={2022}, pages={447–471} }
LibreCat | Files available | DOI | Download (ext.)
 
[13]
2022 | Journal Article | LibreCat-ID: 29240 | OA
@article{Ober-Blöbaum_Offen, title={Variational Learning of Euler–Lagrange Dynamics from Data}, DOI={10.1016/j.cam.2022.114780}, journal={Journal of Computational and Applied Mathematics}, publisher={Elsevier}, author={Ober-Blöbaum, Sina and Offen, Christian} }
LibreCat | Files available | DOI | Download (ext.)
 
[12]
2022 | Journal Article | LibreCat-ID: 29236 | OA
@article{McLachlan_Offen, title={Backward error analysis for conjugate symplectic methods}, journal={Journal of Geometric Mechanics}, author={McLachlan, Robert and Offen, Christian} }
LibreCat | Files available | Download (ext.)
 
[11]
2021 | Conference Paper | LibreCat-ID: 22894 | OA
@article{Offen_Ober-Blöbaum_2021, series={IFAC-PapersOnLine}, title={Bifurcation preserving discretisations of optimal control problems}, volume={54(19)}, DOI={https://doi.org/10.1016/j.ifacol.2021.11.099}, author={Offen, Christian and Ober-Blöbaum, Sina}, year={2021}, pages={334–339}, collection={IFAC-PapersOnLine} }
LibreCat | Files available | DOI | Download (ext.)
 
[10]
2021 | Conference Paper | LibreCat-ID: 21572 | OA
@inproceedings{Ridderbusch_Offen_Ober-Blöbaum_Goulart_2021, title={Learning ODE Models with Qualitative Structure Using Gaussian Processes }, DOI={10.1109/CDC45484.2021.9683426}, booktitle={2021 60th IEEE Conference on Decision and Control (CDC)}, publisher={IEEE}, author={Ridderbusch, Steffen and Offen, Christian and Ober-Blöbaum, Sina and Goulart, Paul}, year={2021}, pages={2896} }
LibreCat | DOI | Download (ext.)
 
[9]
2021 | Preprint | LibreCat-ID: 21600 | OA
@article{Dellnitz_Hüllermeier_Lücke_Ober-Blöbaum_Offen_Peitz_Pfannschmidt_2021, title={Efficient time stepping for numerical integration using reinforcement  learning}, journal={arXiv:2104.03562}, author={Dellnitz, Michael and Hüllermeier, Eyke and Lücke, Marvin and Ober-Blöbaum, Sina and Offen, Christian and Peitz, Sebastian and Pfannschmidt, Karlson}, year={2021} }
LibreCat | Files available | Download (ext.)
 
[8]
2020 | Journal Article | LibreCat-ID: 19938
@article{McLachlan_Offen_2020, title={Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation}, volume={20}, DOI={10.1007/s10208-020-09454-z}, number={6}, journal={Foundations of Computational Mathematics}, author={McLachlan, Robert I and Offen, Christian}, year={2020}, pages={1363–1400} }
LibreCat | DOI | Download (ext.)
 
[7]
2020 | Journal Article | LibreCat-ID: 19939 | OA
@article{Kreusser_McLachlan_Offen_2020, title={Detection of high codimensional bifurcations in variational PDEs}, volume={33}, DOI={10.1088/1361-6544/ab7293}, number={5}, journal={Nonlinearity}, author={Kreusser, Lisa Maria and McLachlan, Robert I and Offen, Christian}, year={2020}, pages={2335–2363} }
LibreCat | DOI | Download (ext.)
 
[6]
2020 | Dissertation | LibreCat-ID: 19947 | OA
@book{Offen_2020, place={Palmerston North, New Zealand}, title={Analysis of Hamiltonian boundary value problems and symplectic integration}, publisher={Massey University}, author={Offen, Christian}, year={2020} }
LibreCat | Files available | Download (ext.)
 
[5]
2019 | Journal Article | LibreCat-ID: 19945 | OA
@article{McLachlan_Offen_Tapley_2019, title={Symplectic integration of PDEs using Clebsch variables}, volume={6}, DOI={10.3934/jcd.2019005}, number={1}, journal={Journal of Computational Dynamics}, publisher={American Institute of Mathematical Sciences (AIMS)}, author={McLachlan, Robert I and Offen, Christian and Tapley, Benjamin K}, year={2019}, pages={111–130} }
LibreCat | DOI | Download (ext.)
 
[4]
2018 | Journal Article | LibreCat-ID: 19935
@article{McLachlan_Offen_2018, title={Bifurcation of solutions to Hamiltonian boundary value problems}, DOI={10.1088/1361-6544/aab630}, journal={Nonlinearity}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={2895–2927} }
LibreCat | DOI | Download (ext.)
 
[3]
2018 | Journal Article | LibreCat-ID: 19937
@article{McLachlan_Offen_2018, title={Symplectic integration of boundary value problems}, DOI={10.1007/s11075-018-0599-7}, journal={Numerical Algorithms}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={1219–1233} }
LibreCat | DOI | Download (ext.)
 
[2]
2018 | Preprint | LibreCat-ID: 19940 | OA
@article{Offen, title={Local intersections of Lagrangian manifolds correspond to catastrophe  theory}, journal={arXiv:1811.10165}, author={Offen, Christian} }
LibreCat | Files available | Download (ext.)
 
[1]
2018 | Journal Article | LibreCat-ID: 19943 | OA
@article{McLachlan_Offen_2018, title={Hamiltonian boundary value problems, conformal symplectic symmetries, and conjugate loci}, volume={48}, journal={New Zealand Journal of Mathematics}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={83–99} }
LibreCat | Files available | Download (ext.)
 

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15 Publications

Mark all

[15]
2022 | Journal Article | LibreCat-ID: 23382 | OA
@article{Offen_Ober-Blöbaum_2022, title={Symplectic integration of learned Hamiltonian systems}, volume={32(1)}, DOI={10.1063/5.0065913}, journal={Chaos: An Interdisciplinary Journal of Nonlinear Science}, publisher={AIP}, author={Offen, Christian and Ober-Blöbaum, Sina}, year={2022} }
LibreCat | Files available | DOI | Download (ext.) | arXiv
 
[14]
2022 | Journal Article | LibreCat-ID: 19941 | OA
@article{McLachlan_Offen_2022, title={Backward error analysis for variational discretisations of partial  differential equations}, volume={14}, DOI={10.3934/jgm.2022014}, number={3}, journal={Journal of Geometric Mechanics}, publisher={AIMS}, author={McLachlan, Robert I and Offen, Christian}, year={2022}, pages={447–471} }
LibreCat | Files available | DOI | Download (ext.)
 
[13]
2022 | Journal Article | LibreCat-ID: 29240 | OA
@article{Ober-Blöbaum_Offen, title={Variational Learning of Euler–Lagrange Dynamics from Data}, DOI={10.1016/j.cam.2022.114780}, journal={Journal of Computational and Applied Mathematics}, publisher={Elsevier}, author={Ober-Blöbaum, Sina and Offen, Christian} }
LibreCat | Files available | DOI | Download (ext.)
 
[12]
2022 | Journal Article | LibreCat-ID: 29236 | OA
@article{McLachlan_Offen, title={Backward error analysis for conjugate symplectic methods}, journal={Journal of Geometric Mechanics}, author={McLachlan, Robert and Offen, Christian} }
LibreCat | Files available | Download (ext.)
 
[11]
2021 | Conference Paper | LibreCat-ID: 22894 | OA
@article{Offen_Ober-Blöbaum_2021, series={IFAC-PapersOnLine}, title={Bifurcation preserving discretisations of optimal control problems}, volume={54(19)}, DOI={https://doi.org/10.1016/j.ifacol.2021.11.099}, author={Offen, Christian and Ober-Blöbaum, Sina}, year={2021}, pages={334–339}, collection={IFAC-PapersOnLine} }
LibreCat | Files available | DOI | Download (ext.)
 
[10]
2021 | Conference Paper | LibreCat-ID: 21572 | OA
@inproceedings{Ridderbusch_Offen_Ober-Blöbaum_Goulart_2021, title={Learning ODE Models with Qualitative Structure Using Gaussian Processes }, DOI={10.1109/CDC45484.2021.9683426}, booktitle={2021 60th IEEE Conference on Decision and Control (CDC)}, publisher={IEEE}, author={Ridderbusch, Steffen and Offen, Christian and Ober-Blöbaum, Sina and Goulart, Paul}, year={2021}, pages={2896} }
LibreCat | DOI | Download (ext.)
 
[9]
2021 | Preprint | LibreCat-ID: 21600 | OA
@article{Dellnitz_Hüllermeier_Lücke_Ober-Blöbaum_Offen_Peitz_Pfannschmidt_2021, title={Efficient time stepping for numerical integration using reinforcement  learning}, journal={arXiv:2104.03562}, author={Dellnitz, Michael and Hüllermeier, Eyke and Lücke, Marvin and Ober-Blöbaum, Sina and Offen, Christian and Peitz, Sebastian and Pfannschmidt, Karlson}, year={2021} }
LibreCat | Files available | Download (ext.)
 
[8]
2020 | Journal Article | LibreCat-ID: 19938
@article{McLachlan_Offen_2020, title={Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation}, volume={20}, DOI={10.1007/s10208-020-09454-z}, number={6}, journal={Foundations of Computational Mathematics}, author={McLachlan, Robert I and Offen, Christian}, year={2020}, pages={1363–1400} }
LibreCat | DOI | Download (ext.)
 
[7]
2020 | Journal Article | LibreCat-ID: 19939 | OA
@article{Kreusser_McLachlan_Offen_2020, title={Detection of high codimensional bifurcations in variational PDEs}, volume={33}, DOI={10.1088/1361-6544/ab7293}, number={5}, journal={Nonlinearity}, author={Kreusser, Lisa Maria and McLachlan, Robert I and Offen, Christian}, year={2020}, pages={2335–2363} }
LibreCat | DOI | Download (ext.)
 
[6]
2020 | Dissertation | LibreCat-ID: 19947 | OA
@book{Offen_2020, place={Palmerston North, New Zealand}, title={Analysis of Hamiltonian boundary value problems and symplectic integration}, publisher={Massey University}, author={Offen, Christian}, year={2020} }
LibreCat | Files available | Download (ext.)
 
[5]
2019 | Journal Article | LibreCat-ID: 19945 | OA
@article{McLachlan_Offen_Tapley_2019, title={Symplectic integration of PDEs using Clebsch variables}, volume={6}, DOI={10.3934/jcd.2019005}, number={1}, journal={Journal of Computational Dynamics}, publisher={American Institute of Mathematical Sciences (AIMS)}, author={McLachlan, Robert I and Offen, Christian and Tapley, Benjamin K}, year={2019}, pages={111–130} }
LibreCat | DOI | Download (ext.)
 
[4]
2018 | Journal Article | LibreCat-ID: 19935
@article{McLachlan_Offen_2018, title={Bifurcation of solutions to Hamiltonian boundary value problems}, DOI={10.1088/1361-6544/aab630}, journal={Nonlinearity}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={2895–2927} }
LibreCat | DOI | Download (ext.)
 
[3]
2018 | Journal Article | LibreCat-ID: 19937
@article{McLachlan_Offen_2018, title={Symplectic integration of boundary value problems}, DOI={10.1007/s11075-018-0599-7}, journal={Numerical Algorithms}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={1219–1233} }
LibreCat | DOI | Download (ext.)
 
[2]
2018 | Preprint | LibreCat-ID: 19940 | OA
@article{Offen, title={Local intersections of Lagrangian manifolds correspond to catastrophe  theory}, journal={arXiv:1811.10165}, author={Offen, Christian} }
LibreCat | Files available | Download (ext.)
 
[1]
2018 | Journal Article | LibreCat-ID: 19943 | OA
@article{McLachlan_Offen_2018, title={Hamiltonian boundary value problems, conformal symplectic symmetries, and conjugate loci}, volume={48}, journal={New Zealand Journal of Mathematics}, author={McLachlan, Robert I and Offen, Christian}, year={2018}, pages={83–99} }
LibreCat | Files available | Download (ext.)
 

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