Sparse graphs with bounded induced cycle packing number have logarithmic treewidth

Sparse graphs with bounded induced cycle packing number have logarithmic treewidth
复制标题

具有有界诱导循环堆积数的稀疏图具有对数树宽

DOI:
--
复制
发表时间:
2022
期刊:
ACM-SIAM Symposium on Discrete Algorithms
影响因子:
--
通讯作者:
Alexandra Wesolek
Alexandra Wesolek
中科院分区:
--
文献类型:
--
作者:
Marthe Bonamy;Édouard Bonnet;Hugues Déprés;Louis Esperet;Colin Geniet;Claire Hilaire;Stéphan Thomassé;Alexandra Wesolek

文献摘要

参考文献

被引文献

相似文献

一个图是$mathcal{O}_k$-free的,如果它不包含$k$两两点不相交和不相邻的圈。我们证明了“稀疏”(这里,不包含大的完全二部图作为子图)$mathcal{O}_k$-free图的树宽(偶数,反馈顶点集数)至多是顶点数的对数。这是最优的,因为存在一个无限族的$mathcal{O}_2$-free图,没有$K_{2,3}$作为子图,并且其树宽(至少)是对数的。利用我们的结果,我们证明了$mathcal{O}_k$-free图的最大独立集和3-着色问题可以在拟多项式时间内求解。其他结果包括大多数中心NP完全问题(如最大独立集,最小顶点覆盖,最小支配集,最小着色)可以在稀疏$mathcal{O}_k$-free图中在多项式时间内解决,并且确定稀疏图的$mathcal{O}_k$-freeness是多项式时间可解的。
A graph is $mathcal{O}_k$-free if it does not contain $k$ pairwise vertex-disjoint and non-adjacent cycles. We prove that"sparse"(here, not containing large complete bipartite graphs as subgraphs) $mathcal{O}_k$-free graphs have treewidth (even, feedback vertex set number) at most logarithmic in the number of vertices. This is optimal, as there is an infinite family of $mathcal{O}_2$-free graphs without $K_{2,3}$ as a subgraph and whose treewidth is (at least) logarithmic. Using our result, we show that Maximum Independent Set and 3-Coloring in $mathcal{O}_k$-free graphs can be solved in quasi-polynomial time. Other consequences include that most of the central NP-complete problems (such as Maximum Independent Set, Minimum Vertex Cover, Minimum Dominating Set, Minimum Coloring) can be solved in polynomial time in sparse $mathcal{O}_k$-free graphs, and that deciding the $mathcal{O}_k$-freeness of sparse graphs is polynomial time solvable.
图中没有反完全循环的诱导路径
DOI: 10.1016/j.jctb.2023.10.003
发表时间: 2024
期刊: Journal of Combinatorial Theory, Series B
影响因子: --
作者:
Nguyen T
通讯作者: Nguyen T
圆盘图上最大团的 QPTAS 和次指数算法
DOI: 10.48550/arxiv.1712.05010
发表时间: 2017
期刊: arXiv e-prints
影响因子: --
作者:
Bonnet
通讯作者: Bonnet
圆盘和单位球图上最大团的 EPTAS 和次指数算法
DOI: 10.1145/3433160
发表时间: 2021
期刊: Journal of the ACM
影响因子: 2.5
作者:
Bonamy M
通讯作者: Bonamy M
DOI: 10.19086/aic.2022.6
发表时间: 2022
影响因子: --
作者:
Chudnovsky, Maria;Abrishami, Tara;Hajebi, Sepehr;Spirkl, Sophie
通讯作者: Spirkl, Sophie