Publications

Submitted Work/Preprints

• An Integer Programming Approach to Compute Lower Bounds for Ramsey Numbers Using Circulant Graphs
  Jointly with Stefeano Coniglio, Ivana Ljubić, Fabio Furini, Emiliano Traversi, and Pablo San Segundo
  Preprint (08/2026) Optimization Online

• Robust Network Design for Potential-Based Flows with Controllable Elements
  Jointly with Kristina Rolsing
  Preprint (06/2026; last update: 07/2026) Optimization Online

• Calmness of the Solution-Set Mapping for Linear Bilevel and Pricing Problems
  Jointly with Henri Lefebvre, Anton Svensson, and Martin Schmidt
  Preprint (05/2026) Optimization Online

• Robust Bilevel Optimization with a Wait-and-See Follower: A Column-and-Constraint Generation Approach
  Jointly with Henri Lefebvre
  Preprint (04/2026) Optimization Online

• Branch-and-Cut for Mixed-Integer Linear Decision-Dependent Robust Optimization
  Jointly with Henri Lefebvre, Simon Stevens, Martin Schmidt
  Preprint (03/2026) Optimization Online

• Potential-Based Flows – An Overview
  Jointly with Marc E. Pfetsch, Martin Skutella, and Martin Schmidt
  Preprint (01/2026) Optimization Online

• Solving Decision-Dependent Robust Problems as Bilevel Optimization Problems
  Jointly with Henri Lefebvre, Simon Stevens, Martin Schmidt
  Preprint (02/2025, last update: 02/2026) Optimization Online, arXiv

Journal Articles

• On Coupling Constraints in Pessimistic Linear Bilevel Optimization
  Jointly with Dorothee Henke, Henri Lefebvre, Martin Schmidt
  Accepted for publication Journal of Optimization Theory and Applications. 2026
  Preprint (02/2025, last update: 05/2026) Optimization Online, arXiv

• BOBILib: Bilevel Optimization (Benchmark) Instance Library
  Jointly with Thomas Kleinert, Ivana Ljubic, Ted Ralphs, and Martin Schmidt
  In: Mathematical Programming Computation. 2026 (DOI:10.1007/s12532-025-00294-y)
  Preprint (07/2024; last update 10/2025) Optimization Online
  Website of the library: https://bobilib.org

• Using Column Generation in Column-and-Constraint Generation for Adjustable Robust Optimization
  Jointly with Henri Lefebvre and Martin Schmidt
  In: Mathematical Programming Computation. 2026 (DOI: 10.1007/s12532-025-00300-3)
  Preprint (10/2023; last update 11/2025): Optimization Online

• Learning the Follower’s Objective Function in Sequential Bilevel Games
  Jointly with Ioana Molan and Martin Schmidt
  In: Mathematical Methods of Operations Research. 2026 (DOI: 10.1007/s00186-025-00908-0)
  Preprint (08/2023; last update: 09/2025): Optimization Online

• Adjustable Robust Nonlinear Network Design under Demand Uncertainties
  Jointly with Julia Grübel and Martin Schmidt
  In: Mathematical Programming (Series B). 2025 (DOI: 10.1007/s10107-025-02207-2)
  Preprint (03/2024; last update: 1/2025): Optimization Online, arXiv

• Connections and Reformulations between Robust and Bilevel Optimization
  Jointly with Marc Goerigk, Jannis Kurtz, and Martin Schmidt
  In: Open Journal of Mathematical Optimization. 2025 (DOI: 10.5802/ojmo.38)
  Preprint (06/2023; last update: 1/2025): Optimization Online, TRR 154 Preprint Server

• On Coupling Constraints in Linear Bilevel Optimization
  Jointly with Dorothee Henke, Henri Lefebvre, and Martin Schmidt
  In: Optimization Letters. 2024. (DOI: 10.1007/s11590-024-02156-3)
  Preprint (02/2024; last update 6/2024): Optimization Online, arXiv

• An Exact Method for Nonlinear Network Flow Interdiction Problems
  Jointly with Martin Schmidt
  In: SIAM Journal in Optimization. 2024. (DOI: 10.1137/22M152983X)
  Preprint (10/2022; last update 11/2023): Optimization Online, TRR 154 Preprint Server

• On a Computationally Ill-Behaved Bilevel Problem with a Continuous and Nonconvex Lower Level
  Jointly with Yasmine Beck, Daniel Bienstock, and Martin Schmidt
  In: Journal of Optimization Theory and Applications. 2023. (DOI: 10.1007/s10957-023-02238-9)
  Preprint (2/2022; last update 5/2023): Optimization Online, TRR 154 Preprint Server, arXiv

• Quo vadis, Entry-Exit-System?
  Jointly with Martin Schmidt
  In: gwf-Gas|Erdgas 7-8/2022. Pages 60-67. ISSN 2366-9594.

• Deciding the Feasibility of a Booking in the European Gas Market is coNP-hard
  In: Annals of Operations Research. 2022 (DOI: 10.1007/s10479-022-04732-1)
  Preprint (05/2020; last update 04/2022): Optimization Online, TRR 154 Preprint Server

• Global Optimization for the Multilevel European Gas Market System with Nonlinear Flow Models on Trees
  Jointly with Lars Schewe and Martin Schmidt
  In: Journal of Global Optimization. 2022. (DOI: 10.1007/s10898-021-01099-8)
  Preprint (08/2020; last update 09/2021): Optimization Online, TRR 154 Preprint Server

• A Bilevel Optimization Approach to Decide the Feasibility of Bookings in the European Gas Market
  Jointly with Fränk Plein, Martine Labbé, and Martin Schmidt
  In: Mathematical Methods of Operations Research. 2021. (DOI: 10.1007/s00186-021-00752-y)
  Preprint (01/2021; last update 05/2021): Optimization Online, TRR 154 Preprint Server

• Radius of Robust Feasibility for Mixed-Integer Problems
  Jointly with Frauke Liers and Lars Schewe
  In: INFORMS Journal on Computing. 2021. (DOI: 10.1287/ijoc.2020.1030)
  Preprint (05/2019; last update 06/2020) Optimization Online, TRR 154 Preprint Server

• Deciding Feasibility of a Booking in the European Gas Market on a Cycle is in P
  Jointly with Martine Labbé, Fränk Plein, and Martin Schmidt
  In: Networks. 2021. (DOI: 10.1002/net.22003)
  Preprint (11/2019; last update 11/2020): Optimization Online, TRR 154 Preprint Server

• Computing technical capacities in the European entry-exit gas market is NP-hard
  Jointly with Lars Schewe and Martin Schmidt
  In: Annals of Operations Research. 2020. (DOI: 10.1007/s10479-020-03725-2)
  Preprint (01/2020; last update 08/2020): Optimization Online, TRR 154 Preprint Server

• Modeling Hydrogen Networks for Future Energy Systems: A Comparison of Linear and Nonlinear Approaches
  Jointly with Markus Reuß, Lara Welder, Jochen Linßen, Thomas Grube, Lars Schewe, Martin Schmidt, Detlef Stolten, and Martin Robinius
  In: International Journal of Hydrogen Energy. 2019. (DOI: 10.1016/j.ijhydene.2019.10.080)
  Preprint (08/2019): engrXiv

• On Electricity Market Equilibria with Storages: Modeling, Uniqueness, and a Distributed ADMM
  Jointly with Julia Grübel, Thomas Kleinert, Vanessa Krebs, Galina Orlinskaya, Lars Schewe, and Martin Schmidt
  In: Computers & Operations Research. 2020. (DOI: 10.1016/j.cor.2019.104783)
  Preprint (03/2019; last update 07/2019): Optimization Online, TRR 154 Preprint Server

• Structural Properties of Feasible Bookings in the European Entry-Exit Gas Market System
  Jointly with Lars Schewe and Martin Schmidt
  In: 4OR. 2019. (DOI: 10.1007/s10288-019-00411-3)
  Preprint (09/2018; last update 06/2019): Optimization Online, TRR 154 Preprint Server

• Robust Optimal Discrete Arc Sizing for Tree-Shaped Potential Networks
  Jointly with Martin Robinius, Lars Schewe, Martin Schmidt, Detlef Stolten, and Lara Welder
  In: Computational Optimization and Applications. 2019. (DOI: 10.1007/s10589-019-00085-x)
  Preprint (02/2018; last update: 11/2018): Optimization Online, TRR 154 Preprint Server

Conference Articles

• Instance-Optimized String Fingerprints (Extended Abstract)
  Jointly with Mihail Stoian, Andreas Zimmerer, Alexander van Renen, and Andreas Kipf
  In 6th International Workshop on Applied AI for Database Systems and Applications (AIDB 2025)
  Preprint (07/2025; last update 07/2025): arXiv.

Thesis

• Feasibility for Maximal Uncertainty Sets in Robust Optimization with Application to Gas Networks
  Dissertation, Friedrich-Alexander-Universität Erlangen-Nürnberg