## Abstract For any graph __G__, let __i__(__G__) and μ;(__G__) denote the smallest number of vertices in a maximal independent set and maximal clique, respectively. For positive integers __m__ and __n__, the lower Ramsey number __s__(__m, n__) is the largest integer __p__ so that every graph of or
A ramsey-type bound for rectangles
✍ Scribed by T�th, G�za
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 199 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
It is proved that for any rectangle T and for any 2-coloring of the points of the 5dimensional Euclidean space, one can always find a rectangle T' congruent to T , all of whose vertices are of the same color. We also show that for any k-coloring of the k2 + o(k2)-dimensional space, there is a monochromatic rectangle congruent to any given rectangle.
📜 SIMILAR VOLUMES
The Ramsey number R(G 1 , G 2 ) is the smallest integer p such that for any graph Some new upper bound formulas are obtained for R(G 1 , G 2 ) and R(m, n), and we derive some new upper bounds for Ramsey numbers here.
We prove that for every fixed k and ≥ 5 and for sufficiently large n, every edge coloring of the hypercube Q n with k colors contains a monochromatic cycle of length 2 . This answers an open question of Chung. Our techniques provide also a characterization of all subgraphs H of the hypercube which a
## Abstract We consider the following question: how large does __n__ have to be to guarantee that in any two‐coloring of the edges of the complete graph __K__~__n,n__~ there is a monochromatic __K__~__k,k__~? In the late 1970s, Irving showed that it was sufficient, for __k__ large, that __n__ ≥ 2^_
New upper bounds for the ramsey numbers r ( k , I ) are obtained. In particular it is shown there is a constant A such that The ramsey number r(k, l ) is the smallest integer n, such that any coloring with red and blue of the edges of the complete graph K , of order n yields either a red K , subgra