Let k be a fixed integer and f n, p denote the probability that the random k Ž . Ž . graph G n, p is k-colorable. We show that for k G 3, there exists d n such that for any k ⑀ ) 0, d n y ⑀ d n q ⑀ Ž . Ž .
A randomized algorithm for k-colorability
✍ Scribed by Janez Žerovnik
- Book ID
- 103061079
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 692 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
✦ Synopsis
This note is a report of testing a straightforward generalization of the randomized 3-coloring algorithm of Petford and Welsh (1989) on the decision problems of 4-and lo-coloring.
We observe similar behavior, namely the existence of critical regions. Experimentally, the average time complexity for large n again seems to grow slowly, although in some cases the number of transitions needed is prohibitively high for practical applications.
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