328 search results - page 33 / 66 » Homomorphism bounded classes of graphs |
CORR
2010
Springer
13 years 8 months ago
2010
Springer
In this paper we show how the complexity of performing nearest neighbor (NNS) search on a metric space is related to the expansion of the metric space. Given a metric space we loo...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
In a previous work we introduced slice graphs as a way to specify both infinite languages of directed acyclic graphs (DAGs) and infinite languages of partial orders. Therein we fo...
CSR
2008
Springer
13 years 8 months ago
2008
Springer
Constraint satisfaction problems have enjoyed much attention since the early seventies, and in the last decade have become also a focus of attention amongst theoreticians. Graph c...
CPC
2002
13 years 8 months ago
2002
Let (G) be the largest eigenvalue of the adjacency matrix of a graph G: We show that if G is Kp+1-free then (G) r 2 p 1 p e (G): This inequality was ...rst conjectured by Edwards ...
ICALP
2003
Springer
14 years 1 months ago
2003
Springer
The (k, r)-center problem asks whether an input graph G has ≤ k vertices (called centers) such that every vertex of G is within distance ≤ r from some center. In this paper we ...