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» Testing Hypergraph Coloring
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ICALP
2001
Springer
13 years 12 months ago
Testing Hypergraph Coloring
In this paper we initiate the study of testing properties of hypergraphs. The goal of property testing is to distinguish between the case whether a given object has a certain prope...
Artur Czumaj, Christian Sohler
ARSCOM
2006
132views more  ARSCOM 2006»
13 years 7 months ago
C-Perfect K-Uniform Hypergraphs
In this paper we define the concept of clique number of uniform hypergraph and study its relationship with circular chromatic number and clique number. For every positive integer ...
Changiz Eslahchi, Arash Rafiey
FOCS
2002
IEEE
14 years 12 days ago
The Hardness of 3 - Uniform Hypergraph Coloring
We prove that coloring a 3-uniform 2-colorable hypergraph with c colors is NP-hard for any constant c. The best known algorithm [20] colors such a graph using O(n1/5 ) colors. Our...
Irit Dinur, Oded Regev, Clifford D. Smyth
ARSCOM
2004
175views more  ARSCOM 2004»
13 years 7 months ago
Circular Chromatic Number of Hypergraphs
The concept of circular chromatic number of graphs was introduced by Vince(1988). In this paper we define circular chromatic number of uniform hypergraphs and study their basic pr...
Changiz Eslahchi, Arash Rafiey
WAOA
2004
Springer
141views Algorithms» more  WAOA 2004»
14 years 23 days ago
Strong Colorings of Hypergraphs
Abstract. A strong vertex coloring of a hypergraph assigns distinct colors to vertices that are contained in a common hyperedge. This captures many previously studied graph colorin...
Geir Agnarsson, Magnús M. Halldórsso...