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20242026
most citedAre System Optimal Dynamic Flows Implementable by Tolls?

1 citations · 1 across the 6 of their papers we have counts for

collaborators

7 papers

cs.GT2026

Tolls for Dynamic Equilibrium Flows

Lukas Graf, Tobias Harks, Julian Schwarz

We consider dynamic network flows and study the following question: Which dynamic edge flows can be implemented as tolled dynamic equilibrium flows? We study this question for the…

cs.GT2026

When do Mixed-Integer Games Admit Rational Equilibria?

Aloïs Duguet, Tobias Harks, Martin Schmidt +1

We consider mixed-integer linear-quadratic generalized Nash equilibrium problems, i.e., games in which each player solves a mixed-integer program subject to linear constraints in h…

cs.GT2025

Branch-and-Cut for Computing Approximate Equilibria of Mixed-Integer Generalized Nash Games

Aloïs Duguet, Tobias Harks, Martin Schmidt +1

Generalized Nash equilibrium problems with mixed-integer variables constitute an important class of games in which each player solves a mixed-integer optimization problem, where bo…

cs.GT2025

Minimal Regret Walras Equilibria for Combinatorial Markets

Aloïs Duguet, Tobias Harks, Martin Schmidt +1

We consider combinatorial multi-item markets and propose the notion of a -regret Walras equilibrium, which is an allocation of items to players and a set of item prices that ach…

cs.GT2025

Branch-and-Cut for Mixed-Integer Nash Equilibrium Problems

Aloïs Duguet, Tobias Harks, Martin Schmidt +1

We study Nash equilibrium problems with mixed-integer variables in which each player solves a mixed-integer optimization problem parameterized by the rivals' strategies. We disting…

cs.GT2025★ 1 cited

Are System Optimal Dynamic Flows Implementable by Tolls?

Lukas Graf, Tobias Harks, Julian Schwarz

A seminal result of [Fleischer et al. and Karakostas and Kolliopulos, both FOCS 2004] states that system optimal multi-commodity static network flows are always implementable as to…

cs.DS2024

A Decomposition Theorem for Dynamic Flows

Lukas Graf, Tobias Harks, Julian Schwarz

The famous flow decomposition theorem of Gallai (1985) states that any static edge ,-flow in a directed graph can be decomposed into a nonnegative linear combination of incid…