Abstract
Very recently, a long-standing open question proposed by Bodlaender in 1991 was answered: the graph coloring game is PSPACE-complete. In 2019, Andres and Lock proposed five variants of the graph coloring game and left open the question of PSPACE-hardness related to them. In this paper, we prove that these variants are PSPACE-complete for the graph coloring game and also for the greedy coloring game, even if the number of colors is the chromatic number. Finally, we also prove that a connected version of the graph coloring game, proposed by Charpentier et al. in 2019, is PSPACE-complete.
R. Sampaio—Supported by CAPES [88887.143992/2017-00] DAAD Probral and [88881.197438/2018-01] STIC AmSud, CNPq Universal [401519/2016-3], [425297/2016-0] and [437841/2018-9], and FUNCAP [4543945/2016] Pronem.
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Marcilon, T., Martins, N., Sampaio, R. (2020). Hardness of Variants of the Graph Coloring Game. In: Kohayakawa, Y., Miyazawa, F.K. (eds) LATIN 2020: Theoretical Informatics. LATIN 2021. Lecture Notes in Computer Science(), vol 12118. Springer, Cham. https://doi.org/10.1007/978-3-030-61792-9_28
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DOI: https://doi.org/10.1007/978-3-030-61792-9_28
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