Title
Asymptotic packing and the random greedy algorithm
Abstract
Let H be an r-uniform hypergraph satisfying deg(x) = D(1 + o(1)) for each vertex x is an element of V(H) and deg(x, y) = o(D) for each pair of vertices x, y is an element of V(H), where D-->infinity. Recently, J. Spencer [5] showed, using a branching process approach, that almost surely the random greedy algorithm finds a packing of size at least n/r(1 - o(1)) for this class of hypergraphs. In this paper, we show an alternative proof of this via ''nibbles.'' Further, let T-alpha be the number of edges that the random greedy algorithm has to consider before yielding a packing of size [n/r .(1-alpha)]. We show that almost surely T(alpha)similar to(1/alpha)(r-1). n/r(r-1) as alpha-->0(+) holds. (C) 1996 John Wiley & Sons, Inc.
Year
DOI
Venue
1996
3.0.CO;2-W" target="_self" class="small-link-text"10.1002/(SICI)1098-2418(199605)8:33.0.CO;2-W
Random Struct. Algorithms
Keywords
Field
DocType
greedy algorithm,branching process
Discrete mathematics,Combinatorics,Vertex (geometry),Hypergraph,Constraint graph,Infinity,Greedy algorithm,Almost surely,Branching process,Mathematics
Journal
Volume
Issue
ISSN
8
3
1042-9832
Citations 
PageRank 
References 
17
1.84
1
Authors
2
Name
Order
Citations
PageRank
Vojtěch Rödl1887142.68
Lubos Thoma2425.34