226 search results - page 36 / 46 » Lower bounds on the obstacle number of graphs |
COMPGEOM
1996
ACM
15 years 2 months ago
1996
ACM
We provideO(n)-timealgorithmsfor constructingthe following types of drawings of n-vertex 3-connectedplanar graphs: 2D convex grid drawings with (3n) (3n=2) area under the edge L1-...
CORR
2007
Springer
14 years 10 months ago
2007
Springer
A network of n wireless communication links is considered in a Rayleigh fading environment. It is assumed that each link can be active and transmit with a constant power P or rema...
DM
2007
14 years 10 months ago
2007
In this paper we deal with codes identifying sets of vertices in random networks; that is, (1, ≤ ℓ)-identifying codes. These codes enable us to detect sets of faulty processor...
GBRPR
2003
Springer
15 years 3 months ago
2003
Springer
Abstract. We present a new method (MIDES) to determine contraction kernels for the construction of graph pyramids. Experimentally the new method has a reduction factor higher than ...
CORR
2010
Springer
14 years 10 months ago
2010
Springer
Circular words are cyclically ordered finite sequences of letters. We give a computer-free proof of the following result by Currie: square-free circular words over the ternary alp...