Corleone.jl: COmplexity Reduction and Lifting Enhanced Optimization of Nonlinear processes and Experiments

We have started the open source project corleone.jl. It allows an efficient solution of parameter estimation, optimal control, and optimal experimental design problems for dynamic processes described with universal differential equations. In julia. With full support of adaptive integrators, forward and backwards automatic differentiation, multiple shooting, various nonlinear programming solvers. We plan to publish it in early 2026. More information to follow soon. Below is a list of related and preparatory work.

Selected publications

2025
software
Hahn, M.
mirhahn/pycoimset
@software{Hahn2025,
    author = {Hahn, Mirko},
    title = {mirhahn/pycoimset},
    publisher = {Zenodo},
    year = {2025},
    url = {https://github.com/mirhahn/pycoimset},
    doi = {10.5281/zenodo.14726148}
}
2024
misc
Martensen, C., Plate, C., Sager, S.
dynamicOED.jl
GitHub repository
@misc{Martensen2024b,
    author = {Martensen, C.J. and Plate, C. and Sager, S.},
    title = {dynamicOED.jl},
    journal = {GitHub repository},
    publisher = {GitHub},
    year = {2024},
    url = {https://github.com/mathopt/DynamicOED.jl}
}
2024
article
Martensen, C. J., Plate, C., Sager, S.
DynamicOED.jl: A Julia package for solving optimum experimental design problems
Journal of Open Source Software
@article{Martensen2024c,
    author = {Martensen, Carl Julius and Plate, Christoph and Sager, Sebastian},
    title = {DynamicOED.jl: A Julia package for solving optimum experimental design problems},
    journal = {Journal of Open Source Software},
    year = {2024},
    volume = {9},
    number = {98},
    pages = {6605},
    doi = {10.21105/joss.06605}
}
2024
misc
Plate, C., Sager, S., Tetschke, M.
SecondOrderPOC.jl
GitHub repository
@misc{secondorderpoc,
    author = {Plate, C. and Sager, S. and Tetschke, M.},
    title = {SecondOrderPOC.jl},
    journal = {GitHub repository},
    publisher = {GitHub},
    year = {2024},
    url = {https://github.com/chplate/SecondOrderPOC.jl}
}
2020
inproceedings
Bürger, A., Zeile, C., Hahn, M., Altmann-Dieses, A., Sager, S., Diehl, M.
pycombina: An Open-Source Tool for Solving Combinatorial Approximation Problems arising in Mixed-Integer Optimal Control
IFAC
@inproceedings{Buerger2020,
    author = {B\"urger, A. and Zeile, C. and Hahn, M. and Altmann-Dieses, A. and Sager, S. and Diehl, M.},
    title = {pycombina: An Open-Source Tool for Solving Combinatorial Approximation Problems arising in Mixed-Integer Optimal Control},
    journal = {IFAC},
    year = {2020},
    volume = {53},
    pages = {6502--6508},
    doi = {10.1016/j.ifacol.2020.12.1799}
}
2016
article
Janka, D., Kirches, C., Sager, S., Wächter, A.
An SR1/BFGS SQP algorithm for nonconvex nonlinear programs with block-diagonal Hessian matrix
Mathematical Progamming Computation
@article{Janka2016,
    author = {Janka, D. and Kirches, C. and Sager, S. and W\"achter, A.},
    title = {An {SR1/BFGS SQP} algorithm for nonconvex nonlinear programs with block-diagonal {H}essian matrix},
    journal = {Mathematical {P}rogamming {C}omputation},
    year = {2016},
    volume = {8},
    number = {4},
    pages = {435--459},
    doi = {10.1007/s12532-016-0101-2}
}

Prof. Dr. rer. nat. habil. Sebastian Sager
Head of MathOpt group
at the Institute of Mathematical Optimization
at the Faculty of Mathematics
at the Otto von Guericke University Magdeburg

Universitätsplatz 2, G02-224
39106 Magdeburg, Germany

: +49 391 67 58745
: +49 391 67 11171
:

Susanne Heß

Universitätsplatz 2, G02-205
39106 Magdeburg, Germany

: +49 391 67-58756
: +49 391 67-11171
:

Prof. Dr. rer. nat. habil. Sebastian Sager
Head of MathOpt group
at the Institute of Mathematical Optimization
at the Faculty of Mathematics
at the Otto von Guericke University Magdeburg

Universitätsplatz 2, G02-224
39106 Magdeburg, Germany

: +49 391 67 58745
: +49 391 67 11171
:

Susanne Heß

Universitätsplatz 2, G02-205
39106 Magdeburg, Germany

: +49 391 67-58756
: +49 391 67-11171
: