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About Me
About Me
I am a postdoctoral researcher in the group of Martin Hoefer at RWTH Aachen University.
My research focuses on combinatorial optimization and algorithmic game theory, with particular interests in information design, approximation algorithms on graphs, and computational social choice.
Previously, I was a postdoctoral researcher at the Center for Mathematical Modeling (CMM) at the Universidad de Chile, hosted by José Correa. I received my PhD in September 2024 from the Technical University of Berlin, where I was advised by Max Klimm. Before that, I completed my Bachelor's and Master's degrees in Business Mathematics at the University of Cologne and worked as a student researcher under the supervision of Kevin Schewior.
e-mail: sgriesbach [at] cmm [dot] uchile [dot] cl
News
News
I attended the Symposium on Discrete Algorithms (SODA 2026) in Vancouver, Canada, and gave the talk "Online Proportional Apportionment", January 2026
I attended the Combinatorial Optimization Workshop in Aussois, France, and gave the talk "Online Proportional Apportionment", January 2026
I started my new Post-Doc position in the group of Martin Hoefer at RWTH Aachen University, January 2026
The paper "Improved Approximation Algorithms for the Expanding Search Problem" with Felix Hommelsheim, Max Klimm, and Kevin Schewior was accepted for publication at the SIAM Journal on Discrete Mathematics (SIDMA), October 2025
The paper "Online Proportional Apportionment" with Javier Cembrano, José Correa, and Victor Verdugo was accepted at SODA 26 and is now available on arxiv, October 2025
The paper "Carbon Pricing in Traffic Networks" with Tobias Harks, Max Klimm, Michael Markl, and Philipp Warode is now available on arxiv, August 2025
I was awarded the MATH+ Dissertation Award 2024, July 2025
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