Agitated
发表于 2025-3-21 19:01:03
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防水
发表于 2025-3-21 22:43:04
https://doi.org/10.1057/9780230339194r, we improve this result to the clique-width of . ≤ 3 * 2. and more importantly show that there is an exponential lower bound on this relationship. In particular, for any ., there is a graph . with treewidth = . where the clique-width of . ≥ 2..
不理会
发表于 2025-3-22 00:29:00
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Trigger-Point
发表于 2025-3-22 08:17:33
On the Relationship between Clique-Width and Treewidth,r, we improve this result to the clique-width of . ≤ 3 * 2. and more importantly show that there is an exponential lower bound on this relationship. In particular, for any ., there is a graph . with treewidth = . where the clique-width of . ≥ 2..
Ceramic
发表于 2025-3-22 09:42:28
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基因组
发表于 2025-3-22 13:11:40
https://doi.org/10.1007/978-1-349-14218-7f minimum cardinality. We consider the problem for planar graphs and present fixed parameter and approximation results..We also examine some other graph classes: subclasses of chordal graphs such as k-trees, strongly chordal graphs, etc., graphs with few . ., comparability graphs, and distance hereditary graphs.
基因组
发表于 2025-3-22 20:32:56
https://doi.org/10.1007/978-3-031-32107-8graphs, diamond-free graphs and chordal graphs. The number of minimal separators of graphs with bounded tree-degree is polynomial. This implies that the treewidth of graphs with bounded tree-degree can be computed efficiently, even without the model given in advance.
BRIBE
发表于 2025-3-23 00:28:51
erized computation are nicely combined and extended. The algorithm is practically efficient with running time bounded by .(1.26. + .), where . is the size of the constrained minimum vertex cover in the input graph. The algorithm is a significant improvement over the previous algorithms for the problem.
旧石器
发表于 2025-3-23 02:35:11
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施加
发表于 2025-3-23 06:30:53
https://doi.org/10.1007/978-3-319-66131-5 sufficient planarity criterion in terms of projection paths over a spanning subtree of a graph. Using this criterion, we show that the 2-level cactus of . is planar if the cardinality of a minimum edge-cut of . is not equal to 2, 3 or 5. On the other hand, we give examples for non-planar 2-level cacti of graphs with these connectivities.