18 search results - page 2 / 4 » An Upper Bound of 62 on the Classical Ramsey Number R(3, 3, ... |
GD
2009
Springer
13 years 4 months ago
2009
Springer
Abstract. The study of (minimally) rigid graphs is motivated by numerous applications, mostly in robotics and bioinformatics. A major open problem concerns the number of embeddings...
GC
2011
Springer
13 years 1 months ago
2011
Springer
The smallest n such that every colouring of the edges of Kn must contain a monochromatic star K1,s+1 or a properly edge-coloured Kt is denoted by f(s, t). Its existence is guarant...
CCCG
2004
13 years 7 months ago
2004
We establish upper and lower bounds on the number of connected components of lines tangent to four triangles in R3 . We show that four triangles in R3 may admit at least 88 tangent...
ACSC
2005
IEEE
13 years 12 months ago
2005
IEEE
A k-separated matching in a graph is a set of edges at distance at least k from one another (hence, for instance, a 1-separated matching is just a matching in the classical sense)...
COMPGEOM
2008
ACM
13 years 8 months ago
2008
ACM
The study of extremal problems on triangle areas was initiated in a series of papers by Erdos and Purdy in the early 1970s. In this paper we present new results on such problems, ...