On irredundant Ramsey numbers for graphs
✍ Scribed by Johannes H. Hattingh
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 248 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The irredundant Ramsey number s(m, n) is the smallest p such that in every two‐coloring of the edges of K~p~ using colors red (R) and blue (B), either the blue graph contains an m‐element irredundant set or the red graph contains an n‐element irredundant set. We develop techniques to obtain upper bounds for irredundant Ramsey numbers of the form s(3, n) and prove that 18 ≤ s(3,7) ≤ 19.
📜 SIMILAR VOLUMES
## Abstract The irredundant Ramsey number __s(m, n)__ is the smallest __N__ such that in every red‐blue coloring of the edges of __K__~__N__~, either the blue graph contains an __m__‐element irredundant set or the red graph contains an __n__‐element irredundant set. The definition of the mixed Rams
## Abstract For every __r__‐graph __G__ let π(__G__) be the minimal real number ϵ such that for every ϵ < 0 and __n__ ϵ __n__~0~(λ, __G__) every __R__‐graph __H__ with __n__ vertices and more than (π + ϵ)(nr) edges contains a copy of __G__. The real number λ(__G__) is defined in the same way, addin
## Abstract Let __R__(__G__) denote the minimum integer __N__ such that for every bicoloring of the edges of __K~N~__, at least one of the monochromatic subgraphs contains __G__ as a subgraph. We show that for every positive integer __d__ and each γ,0 < γ < 1, there exists __k__ = __k__(__d__,γ) su