DEIFY
发表于 2025-3-21 17:35:08
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马具
发表于 2025-3-21 23:19:17
https://doi.org/10.1007/978-3-662-28402-5cutively in a walk in the graph. In this paper, we look for the smallest set of transitions needed to be able to go from any vertex of the given graph to any other. We prove that this problem is NP-hard and study approximation algorithms. We develop theoretical tools that help to study this problem.
JAMB
发表于 2025-3-22 02:05:22
Moderne Chirurgie des Rektumkarzinomsoblem cannot be solved in time . on general directed graphs, where . is the treewidth of the underlying undirected graph. This is matched by a dynamic programming algorithm with running time .. On the other hand, we show that if the input digraph is planar, then the running time can be improved to ..
hemophilia
发表于 2025-3-22 06:15:24
https://doi.org/10.1007/978-3-531-91829-7s note, we show that there are planar graphs of pathwidth 3 with arbitrarily large anagram-free chromatic number. More specifically, we describe 2.-vertex planar graphs of pathwidth 3 with anagram-free chromatic number .. We also describe . vertex graphs with pathwidth . having anagram-free chromatic number in ..
蹒跚
发表于 2025-3-22 10:46:11
On Minimum Connecting Transition Sets in Graphs,cutively in a walk in the graph. In this paper, we look for the smallest set of transitions needed to be able to go from any vertex of the given graph to any other. We prove that this problem is NP-hard and study approximation algorithms. We develop theoretical tools that help to study this problem.
蕨类
发表于 2025-3-22 13:24:14
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蕨类
发表于 2025-3-22 19:20:23
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青少年
发表于 2025-3-23 00:53:24
On Dispersable Book Embeddings,such that: (i) no two edges of the same page cross, and (ii) no two edges of the same page share a common endvertex. The minimum number of pages needed in a dispersable book embedding of . is called its ., .(.). Graph . is called . if . equals the maximum degree of ., . (note that . always holds)..B
不规则
发表于 2025-3-23 01:40:39
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Ptosis
发表于 2025-3-23 06:40:06
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