TreewidthIsomorphismsCoqSsreflectWe present a library for graph theory in Coq/Ssreflect. This library covers various notions on simple graphs, directed graphs, and multigraphs. We use it to formalize several results from the literature: Menger's theorem, the excluded-minor characterization of tree...
Daniel J. Harvey and David R. Wood. Parameters tied to treewidth. Journal of Graph Theory, Published online, 2016.D. Harvey and D. Wood. Parameters tied to treewidth. Journal of Graph Theory, 84(4):364-385, 2017.D. J. Harvey and D. R. Wood. Parameters tied to treewidth. Journal...
Treewidth is a graph parameter of fundamental importance to algorithmic and structural graph theory. This article surveys several graph parameters tied to treewidth, including separation number, tangle number, well-linked number, and Cartesian tree product number. We review many results in the literatu...
Summary: The tree-width of a graph $G$ is the minimum $k$ such that $G$ may be decomposed into a "tree-structure" of pieces each with at most $k+1$ vertice... PD Seymour,R Thomas - 《Journal of Combinatorial Theory》 被引量: 663发表: 1993年 Treewidth of Circle Graphs In this...
We generalize thr concept of tree-width to directed graphs and prove that every directed graph with no haven of large order has small tree-width. Conversely, a digraph with a large haven has large tree-width. We also show that the Hamilton cycle problem and other NP-hard problems can be ...
bidimensionality, or the irrelevant vertex approach. In Section 6.3, we gave a brief overview on how the deep theory of Graph Minors of Robertson and Seymour can be used to obtain nonconstructive FPT algorithms. One of the tools defined by Robertson and Seymour in their work was the tree...
For the Erdős–Rényi random graph G(n,m), our result improves a previous lower bound obtained by Kloks (1994) [22]. For random intersection graphs, our result strengthens a previous observation on the treewidth by Karoński et al. (1999) [19]. For scale-free random graphs based on...
theory graph theory matrix decomposition sparse matrices trees (mathematics)/ sparse matrix factorization treewidth pathwidth frontsize shortest elimination tree approximation algorithms vertex separators/ B0250 Combinatorial mathematics C1160 Combinatorial mathematics C4240 Programming and algorithm theory DOI...
来源会议 International Conference on Theory & Applications of Models of Computation 05/22/2007 研究点推荐 biconvex bipartite graph G biconvex bipartite graphs treewidth and pathwidth 引用走势 2009 被引量:4 站内活动 0关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,...
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