祝贺 发表于 2025-3-25 03:53:35

,Prävention aus Sicht der Krankenkassen,We survey the applications of ruled surface theory in incidence geometry. We discuss some of the proofs and raise some open questions.

MEAN 发表于 2025-3-25 08:51:24

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choroid 发表于 2025-3-25 12:20:33

https://doi.org/10.1007/978-3-642-85555-9s we present some of them, related to the game of HEX and to the piercing of multiple intervals. We also sketch stronger theorems, due to Oliver and others, and explain their applications to the fascinating (and still not fully solved) evasiveness problem.

敌手 发表于 2025-3-25 18:36:14

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VAN 发表于 2025-3-25 21:24:08

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corn732 发表于 2025-3-26 03:54:29

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恩惠 发表于 2025-3-26 05:44:40

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Synthesize 发表于 2025-3-26 08:30:08

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阻塞 发表于 2025-3-26 14:38:27

https://doi.org/10.1007/978-3-658-18013-3approximation, we reduce the traveling salesman problem with disks, up to constant factors, to a minimum weight hitting set problem in a geometric hypergraph. The connection between TSPN and hitting sets in geometric hypergraphs, established here, is likely to have future applications.

debble 发表于 2025-3-26 19:56:38

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查看完整版本: Titlebook: A Journey Through Discrete Mathematics; A Tribute to Jiří Ma Martin Loebl,Jaroslav Nešetřil,Robin Thomas Book 2017 Springer International p