QUADRILATERAL-TREE PLANAR RAMSEY NUMBERS

QUADRILATERAL-TREE PLANAR RAMSEY NUMBERS
复制标题

四边形树平面 Ramsey 数

DOI:
10.1017/s0004972717001022
复制
发表时间:
2018-01
影响因子:
0.7
通讯作者:
Zhang Yanbo
Zhang Yanbo
中科院分区:
数学4区
文献类型:
--
作者:
Hu Xiaolan;Zhang Yunqing;Zhang Yanbo

文献摘要

参考文献

相似文献

For two given graphs $G_{1}$ and $G_{2}$ , the planar Ramsey number $PR(G_{1},G_{2})$ is the smallest integer $N$ such that every planar graph $G$ on $N$ vertices either contains $G_{1}$ , or its complement contains $G_{2}$ . Let $C_{4}$ be a quadrilateral, $T_{n}$ a tree of order $n\geq 3$ with maximum degree $k$ , and $K_{1,k}$ a star of order $k+1$ . We show that $PR(C_{4},T_{n})=\max \{n+1,PR(C_{4},K_{1,k})\}$ . Combining this with a result of Chen et al. [‘All quadrilateral-wheel planar Ramsey numbers’, Graphs Combin. 33 (2017), 335–346] yields exact values of all the quadrilateral-tree planar Ramsey numbers.
For two given graphs $G_{1}$ and $G_{2}$ , the planar Ramsey number $PR(G_{1},G_{2})$ is the smallest integer $N$ such that every planar graph $G$ on $N$ vertices either contains $G_{1}$ , or its complement contains $G_{2}$ . Let $C_{4}$ be a quadrilateral, $T_{n}$ a tree of order $n\geq 3$ with maximum degree $k$ , and $K_{1,k}$ a star of order $k+1$ . We show that $PR(C_{4},T_{n})=\max \{n+1,PR(C_{4},K_{1,k})\}$ . Combining this with a result of Chen et al. [‘All quadrilateral-wheel planar Ramsey numbers’, Graphs Combin. 33 (2017), 335–346] yields exact values of all the quadrilateral-tree planar Ramsey numbers.
DOI: 10.1006/jctb.1993.1070
发表时间: 1993-11
期刊: J. Comb. Theory B
影响因子: --
作者:
R. Steinberg;C. Tovey
通讯作者: R. Steinberg;C. Tovey
DOI: 10.1016/s0167-5060(08)70452-7
发表时间: 1988
期刊: Annals of discrete mathematics
影响因子: --
作者:
S. Burr;P. Erdös;R. Faudree;C. Rousseau;R. Schelp
通讯作者: S. Burr;P. Erdös;R. Faudree;C. Rousseau;R. Schelp
DOI: 10.7151/dmgt.1258
发表时间: 2005
期刊: Discuss. Math. Graph Theory
影响因子: --
作者:
Izolda Gorgol
通讯作者: Izolda Gorgol
C4 与恒星的拉姆齐数的一些值
DOI: 10.1016/j.ffa.2016.11.012
发表时间: 2017
影响因子: 1
作者:
Zhang Xuemei;Chen Yaojun;Cheng T. C. Edwin
通讯作者: Cheng T. C. Edwin
C-4 与恒星的极性图和拉姆齐数
DOI: 10.1016/j.disc.2016.12.005
发表时间: 2017
影响因子: 0.8
作者:
Zhang Xuemei;Chen Yaojun;Cheng T. C. Edwin
通讯作者: Cheng T. C. Edwin