掩饰
发表于 2025-3-21 19:49:47
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容易懂得
发表于 2025-3-21 22:57:34
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HERTZ
发表于 2025-3-22 00:44:23
https://doi.org/10.1007/978-3-658-43269-0igate both from theoretical and practical angles. We propose several algorithms to tackle these problems and report on extensive experiments. At the time of writing, a large gap remains between the best lower and upper bounds for the minimum size of KS vector systems.
废除
发表于 2025-3-22 08:16:12
Moderne Verfahren der Angewandten Statistiko describe all graphs having a planar cover. Kratochvíl asked whether there are non-trivial graphs for which .(.) is .-complete but .(.) belongs to ...We examine the first nontrivial cases of graphs . for which .(.) is .-complete and which admit a planar cover. We prove .-completeness of .(.) in these cases.
LAPSE
发表于 2025-3-22 09:58:30
Moderne Verfahren der Kryptographie . ≤ 2. − 1 and polynomial time solvable otherwise). The one for planar graphs proves the NP-hardness of colouring with less than 7 colours graphs of thickness two and less than 6. − 3 colours graphs of thickness . ≥ 3.
Ischemic-Stroke
发表于 2025-3-22 14:08:42
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Ischemic-Stroke
发表于 2025-3-22 21:01:07
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有说服力
发表于 2025-3-23 00:07:27
On the Complexity of Planar Covering of Small Graphs,o describe all graphs having a planar cover. Kratochvíl asked whether there are non-trivial graphs for which .(.) is .-complete but .(.) belongs to ...We examine the first nontrivial cases of graphs . for which .(.) is .-complete and which admit a planar cover. We prove .-completeness of .(.) in these cases.
极大的痛苦
发表于 2025-3-23 03:19:17
Empires Make Cartography Hard: The Complexity of the Empire Colouring Problem, . ≤ 2. − 1 and polynomial time solvable otherwise). The one for planar graphs proves the NP-hardness of colouring with less than 7 colours graphs of thickness two and less than 6. − 3 colours graphs of thickness . ≥ 3.
mendacity
发表于 2025-3-23 06:41:23
Alternation Graphs,sentation of the graph. A graph . is a . graph if it is represented by a word in which each letter occurs exactly . times; the alternation number of . is the minimum . for which . is a .-alternation graph. We show that the alternation number is always at most ., while there exist graphs for which it is ./2.