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COMBINATORICS
1999
83views more  COMBINATORICS 1999»
13 years 7 months ago
New Lower Bounds for Some Multicolored Ramsey Numbers
In this article we use two different methods to find new lower bounds for some multicolored Ramsey numbers. In the first part we use the finite field method used by Greenwood and ...
Aaron Robertson
DAM
2007
70views more  DAM 2007»
13 years 7 months ago
Path-kipas Ramsey numbers
For two given graphs F and H, the Ramsey number R(F, H) is the smallest positive integer p such that for every graph G on p vertices the following holds: either G contains F as a ...
A. N. M. Salman, H. J. Broersma
DM
2006
79views more  DM 2006»
13 years 7 months ago
Conditional colorings of graphs
For an integer r > 0, a conditional (k, r)-coloring of a graph G is a proper k-coloring of the vertices of G such that every vertex of degree at least r in G will be adjacent t...
Hong-Jian Lai, Jianliang Lin, Bruce Montgomery, Ta...
EJC
2010
13 years 7 months ago
The Ramsey numbers for cycles versus wheels of even order
Lianmin Zhang, Yaojun Chen, T. C. Edwin Cheng