25 search results - page 5 / 5 » Algebraic characterization of uniquely vertex colorable grap... |
ICALP
2003
Springer
14 years 22 days ago
2003
Springer
Abstract. We introduce a concept of similarity between vertices of directed graphs. Let GA and GB be two directed graphs with respectively nA and nB vertices. We define a nA × nB...
DAM
2010
13 years 7 months ago
2010
We introduce H -join decompositions of graphs, indexed by a fixed bipartite graph H . These decompositions are based on a graph operation that we call H -join, which adds edges be...
STOC
2010
ACM
13 years 11 months ago
2010
ACM
The spectral profile of a graph is a natural generalization of the classical notion of its Rayleigh quotient. Roughly speaking, given a graph G, for each 0 < < 1, the spect...
FOCS
2006
IEEE
14 years 1 months ago
2006
IEEE
We consider the minimum cost spanning tree problem under the restriction that all degrees must be at most a given value k. We show that we can efficiently find a spanning tree o...
BMCBI
2010
13 years 7 months ago
2010
Background: A protein binding hot spot is a small cluster of residues tightly packed at the center of the interface between two interacting proteins. Though a hot spot constitutes...