
Research Group
The team works on mathematical optimization, with an emphasis on hierarchical decisions, uncertainty, discrete structures, and nonlinear models.
Secretary's Office
Postdocs

Aloïs Duguet
Postdoctoral Researcher
Approximation of nonlinear functions by piecewise linear functions · Nash equilibria in mixed-integer programming games · branching methods
Aloïs received his master’s degree in Operational Research from Université Paul Sabatier in Toulouse in 2020 and completed a PhD in Computer Science at LAAS-CNRS in Toulouse in 2023 under the supervision of Sandra U. Ngueveu.

Andreas Horländer
Postdoctoral Researcher
Bilevel optimization · mixed-integer optimization · nonlinear optimization
Andreas studied Applied Mathematics at Trier University, received his master’s degree in 2022, and completed his PhD in 2025 in the Research Training Group Algorithmic Optimization (ALOP) under the supervision of Martin Schmidt. He subsequently worked as a researcher at UTN Nuremberg within CRC/TRR 154.
PhD Students

Simon Stevens
Doctoral Researcher
Bilevel optimization · optimization under decision-dependent uncertainty
Simon studied at Trier University, earning a bachelor’s degree in Business Mathematics in September 2022 and a master’s degree in Mathematics in September 2024.
Alumni
Former PhD Students
- Andreas HorländerAlgorithms and Complexity Theory for Bilevel Problems with Nonlinear Lower LevelsTrier University
- Ioana MolanInverse Optimization for Bilevel and Simultaneous Games using Sequential LearningTrier University
- Thomas KleinertAlgorithms for Mixed-Integer Bilevel Problems with Convex FollowersFriedrich-Alexander-Universität Erlangen-NürnbergGOR-Dissertationspreis 2022
- Fränk PleinWhen Bilevel Optimization Meets Gas Networks: Feasibility of Bookings in the European Entry-Exit Gas Market Computational Complexity Results and Bilevel Optimization ApproachesTrier UniversityFörderpreis 2022 of the Freundeskreis Trierer Universität e.V.
- Julia GrübelExistence, Uniqueness, and Algorithms for Equilibria in Competitive Energy MarketsTrier University
- Carina Moreira CostaComputational Techniques for Minimum Sum-of-Squares Clustering, Cardinality-Constrained Optimization, and Robust Clustering ProblemsTrier UniversityCo-supervision with Jan Pablo Burgard
- Vanessa KrebsWell-posedness of Deterministic and Uncertain Linear Complementarity Problems with an Application to Electricity MarketsFriedrich-Alexander-Universität Erlangen-Nürnberg
- Marius RolandAdaptive Refinement Algorithms for Optimization Problems in Energy Transport NetworksTrier University
- Max SpäthSpatial Ramsey-Type Equilibrium Modeling: Existence Theory, Numerical Methods, and Case StudiesTrier University
- Richard KrugDecomposition Methods for Time-Dependent Mixed-Integer Nonlinear Optimization Problems on GraphsFriedrich-Alexander-Universität Erlangen-Nürnberg
- Maria Eduarda PinheiroMixed-Integer Optimization for Semi-Supervised Learning with Cardinality Constraints: Support Vector Machines, Classification Trees, and Random ForestsTrier UniversityCo-supervision with Jan Pablo Burgard
- Yasmine BeckMixed-Integer Optimization Techniques for Robust Bilevel Problems with Here-and-Now FollowersTrier UniversityEURO Doctoral Dissertation Award 2025GOR-Dissertationspreis
Former Postdocs
- Marina Leal PalazonProfessor at Universidad Miguel Hernández, Spain
- Dennis KreberStrangeworks
- Johannes ThüraufProfessor at the University of Technology Nuremberg
- Henri LefebvrePermanent CNRS researcher hosted by LIRMM, Montpellier, France
Open Positions
There are currently no advertised positions.
