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» Vertex partitions of chordal graphs
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DAM
2006
88views more  DAM 2006»
13 years 7 months ago
A characterization of triangle-free tolerance graphs
We prove that a triangle-free graph G is a tolerance graph if and only if there exists a set of consecutively ordered stars that partition the edges of G. Since tolerance graphs a...
Arthur H. Busch
EOR
2010
82views more  EOR 2010»
13 years 7 months ago
Satisfactory graph partition, variants, and generalizations
The Satisfactory Partition problem asks for deciding if a given graph has a partition of its vertex set into two nonempty parts such that each vertex has at least as many neighbor...
Cristina Bazgan, Zsolt Tuza, Daniel Vanderpooten
STOC
2006
ACM
106views Algorithms» more  STOC 2006»
14 years 7 months ago
Finding small balanced separators
Let G be an n-vertex graph that has a vertex separator of size k that partitions the graph into connected components of size smaller
Uriel Feige, Mohammad Mahdian
JGT
2007
130views more  JGT 2007»
13 years 7 months ago
Vertex partitions and maximum degenerate subgraphs
: Let G be a graph with maximum degree d ≥ 3 and ω(G) ≤ d, where ω(G) is the clique number of the graph G. Let p1 and p2 be two positive integers such that d = p1 + p2. In th...
Martín Matamala
CORR
2008
Springer
71views Education» more  CORR 2008»
13 years 7 months ago
Asteroids in rooted and directed path graphs
An asteroidal triple is a stable set of three vertices such that each pair is connected by a path avoiding the neighborhood of the third vertex. Asteroidal triples play a central ...
Kathie Cameron, Chính T. Hoàng, Benj...