202 search results - page 16 / 41 » Large-Girth Roots of Graphs |
JCT
2011
14 years 4 months ago
2011
Abstract. We generalize a theorem of Knuth relating the oriented spanning trees of a directed graph G and its directed line graph LG. The sandpile group is an abelian group associa...
NIPS
2008
14 years 11 months ago
2008
We continue our study of online prediction of the labelling of a graph. We show a fundamental limitation of Laplacian-based algorithms: if the graph has a large diameter then the ...
COLOGNETWENTE
2009
14 years 10 months ago
2009
We consider maximum properly edge-colored trees in edge-colored graphs Gc . We also consider the problem where, given a vertex r, determine whether the graph has a spanning tree r...
COCOON
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. An undirected graph G = (V, E) is the k-power of an undirected tree T = (V, E ) if (u, v) ∈ E iff u and v are connected by a path of length at most k in T. The tree T ...
SODA
2010
ACM
15 years 7 months ago
2010
ACM
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...