刻苦读书 发表于 2025-3-25 04:51:12

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ironic 发表于 2025-3-25 09:10:49

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Graduated 发表于 2025-3-25 14:48:35

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TOXIN 发表于 2025-3-25 19:15:42

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Exposition 发表于 2025-3-25 22:49:05

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Acclaim 发表于 2025-3-26 01:07:24

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profligate 发表于 2025-3-26 05:21:13

https://doi.org/10.1007/978-3-8350-9627-1e distance between any two vertices in . is larger than that distance in . by no more than a factor of .. This paper concerns the hardness of finding spanners with the number of edges close to the optimum. It is proved that for every fixed . approximating the spanner problem is at least as hard as a

透明 发表于 2025-3-26 10:16:28

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新鲜 发表于 2025-3-26 16:20:05

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疾驰 发表于 2025-3-26 19:24:27

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查看完整版本: Titlebook: Approximation Algorithms for Combinatorial Optimization; International Worksh Klaus Jansen,José Rolim Conference proceedings 1998 Springer-