# The Minimum Feedback Arc Set Problem is NP-Hard for Tournaments

@article{Charbit2006TheMF, title={The Minimum Feedback Arc Set Problem is NP-Hard for Tournaments}, author={Pierre Charbit and St{\'e}phan Thomass{\'e} and Anders Yeo}, journal={Combinatorics, Probability and Computing}, year={2006}, volume={16}, pages={1 - 4} }

Answering a question of Bang-Jensen and Thomassen [4], we prove that the minimum feedback arc set problem is NP-hard for tournaments.

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