16 search results - page 1 / 4 » Additive Spanners for k-Chordal Graphs |
CIAC
2003
Springer
13 years 10 months ago
2003
Springer
Abstract. In this paper we show that every chordal graph with n vertices and m edges admits an additive 4-spanner with at most 2n−2 edges and an additive 3-spanner with at most O...
SIROCCO
2004
13 years 6 months ago
2004
WG
2004
Springer
13 years 10 months ago
2004
Springer
In this paper we study collective additive tree spanners for families of graphs that either contain or are contained in AT-free graphs. We say that a graph G = (V, E) admits a sys...
WDAG
2009
Springer
13 years 9 months ago
2009
Springer
Abstract. An (α, β)-spanner of a graph G is a subgraph H that approximates distances in G within a multiplicative factor α and an additive error β, ensuring that for any two no...
ICALP
2010
Springer
13 years 9 months ago
2010
Springer
We consider the problem of efficiently finding an additive C-spanner of an undirected unweighted graph G, that is, a subgraph H so that for all pairs of vertices u, v, δH (u, v) ...