266 search results - page 9 / 54 » Chromatic Ramsey numbers |
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GD
2005
Springer
15 years 7 months ago
2005
Springer
Let S be a set of horizontal line segments, or bars, in the plane. We say that G is a bar visibility graph, and S its bar visibility representation, if there exists a one-to-one co...
84
Voted
JCT
2007
15 years 1 months ago
2007
84
Voted
JGT
2010
15 years 8 days ago
2010
: We consider a problem related to Hadwiger’s Conjecture. Let
205
Voted
GC
2011
Springer
14 years 8 months ago
2011
Springer
The Ramsey number r(H, Kn) is the smallest positive integer N such that every graph of order N contains either a copy of H or an independent set of size n. The Tur´an number ex(m,...
92
Voted
EJC
2008
15 years 1 months ago
2008
For two given graphs G1 and G2, the Ramsey number R(G1, G2) is the smallest positive integer n such that for any graph G of order n, either G contains G1 or the complement of G co...