174 search results - page 28 / 35 » On the First-Fit Chromatic Number of Graphs |
COMBINATORICS
1999
13 years 7 months ago
1999
An orthogonal coloring of a graph G is a pair {c1, c2} of proper colorings of G, having the property that if two vertices are colored with the same color in c1, then they must hav...
PODC
2011
ACM
12 years 10 months ago
2011
ACM
This work studies decision problems from the perspective of nondeterministic distributed algorithms. For a yes-instance there must exist a proof that can be verified with a distri...
JGAA
2008
13 years 7 months ago
2008
Bar k-visibility graphs are graphs admitting a representation in which the vertices correspond to horizontal line segments, called bars, and the edges correspond to vertical lines...
APPROX
2011
Springer
12 years 7 months ago
2011
Springer
How to color 3 colorable graphs with few colors is a problem of longstanding interest. The best polynomial-time algorithm uses n0.2072 colors. There are no indications that colori...
CORR
2010
Springer
13 years 4 months ago
2010
Springer
We introduce a new technique for proving kernelization lower bounds, called cross-composition. A classical problem L cross-composes into a parameterized problem Q if an instance o...