Julia Grübel

Dr. Julia Grübel
	Phone	+49 (0)911 5302 95253
	Fax	+49 (0)911 5302 95168
	Room	5.255
	Office hours	Wednesday, 15:00 pm – 16:00 pm
	Email	julia.gruebel@fau.de

About

Julia Grübel holds a M.Sc. in Mathematics with a focus on Modeling, Simulation, and Optimization as well as a B.Sc. in Business Mathematics from the Friedrich-Alexander-Universität Erlangen-Nürnberg. She received her Doctorate in Mathematics from the Trier University in 2021. Since 2022, she works as a postdoctoral researcher at the Chair of Economic Theory at the Friedrich-Alexander-Universität Erlangen-Nürnberg. Her research interests include general equilibrium problems and their applications to energy markets.

Research interests

Bilevel optimization
General equilibrium problems
Energy market modeling and design

Teaching

Game Theory
Microeconomics
Supervision of bachelor, master, project, and seminar theses

Publications

Grübel, J., Huber, O., Hümbs, L., Klimm, M., Schmidt, M., & Schwartz, A. (2023). Nonconvex equilibrium models for energy markets: exploiting price information to determine the existence of an equilibrium. Optimization Methods & Software, 38(1), 153-183. https://dx.doi.org/10.1080/10556788.2022.2117358
Grübel, J., Krug, R., Schmidt, M., & Wollner, W. (2023). A Successive Linear Relaxation Method for MINLPs with Multivariate Lipschitz Continuous Nonlinearities. Journal of Optimization Theory and Applications, 198, 1077-1117. https://dx.doi.org/10.1007/s10957-023-02254-9

Egerer, J., Grimm, V., Grübel, J., & Zöttl, G. (2022). Long-run market equilibria in coupled energy sectors: A study of uniqueness. European Journal of Operational Research, 303(3), 1335-1354. https://dx.doi.org/10.1016/j.ejor.2022.03.028

Grimm, V., Grübel, J., Rückel, B., Sölch, C., & Zöttl, G. (2020). Storage investment and network expansion in distribution networks: The impact of regulatory frameworks. Applied Energy, 262. https://doi.org/10.1016/j.apenergy.2019.114017
Grübel, J., Kleinert, T., Krebs, V., Orlinskaya, G., Schewe, L., Schmidt, M., & Thürauf, J. (2020). On electricity market equilibria with storage: Modeling, uniqueness, and a distributed ADMM. Computers & Operations Research, 114. https://dx.doi.org/10.1016/j.cor.2019.104783

Grimm, V., Grübel, J., Schewe, L., Schmidt, M., & Zöttl, G. (2019). Nonconvex Equilibrium Models for Gas Market Analysis: Failure of Standard Techniques and Alternative Modeling Approaches. European Journal of Operational Research, 273(3), 1097-1108. https://doi.org/10.1016/j.ejor.2018.09.016