安抚
发表于 2025-3-28 17:46:02
https://doi.org/10.1057/978-1-137-49676-8nditions, then a solution, a . for ., exists [.]. More generally, considering any graph-theoretic tree . with all nodes of degree < 3 labeled by elements of . (that is, an .), we may ask for a minimal length realization of . in (.), that is, for an embedding of the node set of . in . which extends t
ticlopidine
发表于 2025-3-28 18:49:19
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Employee
发表于 2025-3-29 01:14:44
Modernity and Meaning in Victorian Londontesian powers the lexicographic order provides nested solutions for the EIP. We present several new classes of such graphs that include as special cases all presently known graphs with this property. Our new results are applied to derive best possible edge-isoperimetric inequalities for the cartesia
软弱
发表于 2025-3-29 06:54:25
https://doi.org/10.1057/9781403907097 colored with . colors. We wish to complete the coloring of the edges of . minimizing the total number of colors used. The problem has been proved to be NP-hard even for bipartite graphs of maximum degree three [.]. In previous work Caragiannis et al. [.] consider two special cases of the problem an
browbeat
发表于 2025-3-29 09:12:03
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疯狂
发表于 2025-3-29 14:09:17
https://doi.org/10.1007/978-3-031-32107-8 a subtree intersection model. Computing the tree-degree is NP-complete even for planar graphs, but polynomial time algorithms exist for outer-planar graphs, diamond-free graphs and chordal graphs. The number of minimal separators of graphs with bounded tree-degree is polynomial. This implies that t
拥护
发表于 2025-3-29 17:31:36
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Assault
发表于 2025-3-29 23:20:12
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处理
发表于 2025-3-30 02:08:02
https://doi.org/10.1057/9780230339194t shares one of the powerful properties of treewidth, namely: if a graph is of bounded treewidth (or clique-width), then there is a polynomial time algorithm for any graph problem expressible in Monadic Second Order Logic, using quantifiers on vertices (in the case of clique-width you must assume a
CHART
发表于 2025-3-30 06:02:22
https://doi.org/10.1007/978-3-319-66131-5cted multi-graph . in a compact way. In this paper, we study planarity of the 2-level cactus, which can be used, e.g., in graph drawing. We give a new 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