论文标题

二手拉姆西数字的另一个观点

Another view of Bipartite Ramsey numbers

论文作者

Rowshan, Yaser, Gholami, Mostafa

论文摘要

对于两部分图形,$ g $和$ h $以及一个正整数$ m $,$ m $ -bipartite ramsey number $ br_m(g,h)$ g $和$ g $和$ h $是最小的整数$ n $,因此每种$ k_ {m,n} $ resuffe y y read $ k_ {m,n} $ resuft in Red $ g $ g $ g $ g $ $ g $或a Blue g $ $ h $。 \ cite {bi2018another}的Zhenming Bi,Gary Chartrand和Ping Zhang评估所有积极整数$ m $时,当$ g = k = k_ {2,2,2} $和$ h \ in \ in \ in \ {k_ {2,3},k_ {2,3},k_ {3,3,3} $ br_5(k_ {2,2},k_ {3,3})= br_6(k_ {2,2},k_ {3,3})= 12 $和$ br_7(k_ {2,2},k_ {2,2},k_ {3,3}在本文中,通过简短而简单的参数,我们确定每个$ M \ geq 1 $的$ br_m(k_ {2,2},k_ {3,3})$的确切值。

For bipartite graphs $G$ and $H$ and a positive integer $m$, the $m$-bipartite Ramsey number $BR_m(G, H)$ of $G$ and $H$ is the smallest integer $n$, such that every red-blue coloring of $K_{m,n}$ results in a red $G$ or a blue $H$. Zhenming Bi, Gary Chartrand and Ping Zhang in \cite{bi2018another} evaluate this numbers for all positive integers $m$ when $G= K_{2,2}$ and $H \in \{K_{2,3}, K_{3,3}\}$, especially in a long and hard argument they showed that $BR_5(K_{2,2}, K_{3,3}) = BR_6(K_{2,2}, K_{3,3}) = 12$ and $BR_7(K_{2,2}, K_{3,3}) = BR_8(K_{2,2}, K_{3,3}) = 9$. In this article, by a short and easy argument we determine the exact value of $BR_m(K_{2,2}, K_{3,3})$ for each $m\geq 1$.

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