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Improved Bounds for Discrete Voronoi Games

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A4 Artikkeli konferenssijulkaisussa

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en

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18

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Algorithms and Data Structures - 18th International Symposium, WADS 2023, Proceedings, pp. 291-308, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) ; Volume 14079 LNCS

Abstract

In the planar one-round discrete Voronoi game, two players P and Q compete over a set V of n voters represented by points in R2. First, P places a set P of k points, then Q places a set Q of ℓ points, and then each voter v∈ V is won by the player who has placed a point closest to v. It is well known that if k= ℓ= 1, then P can always win n/3 voters and that this is worst-case optimal. We study the setting where k> 1 and ℓ= 1. We present lower bounds on the number of voters that P can always win, which improve the existing bounds for all k⩾ 4. As a by-product, we obtain improved bounds on small ε -nets for convex ranges for even numbers of points in general position.

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Funding Information: MdB is supported by the Dutch Research Council (NWO) through Gravitation grant NETWORKS-024.002.003. Publisher Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

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de Berg, M & van Wordragen, G 2023, Improved Bounds for Discrete Voronoi Games. in P Morin & S Suri (eds), Algorithms and Data Structures - 18th International Symposium, WADS 2023, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 14079 LNCS, Springer, pp. 291-308, International Symposium on Algorithms and Data Structures, Montreal, Canada, 31/07/2023. https://doi.org/10.1007/978-3-031-38906-1_20

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