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Vertices of given degree in a random graph
Author(s) -
Bollobás Béla
Publication year - 1982
Publication title -
journal of graph theory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 54
eISSN - 1097-0118
pISSN - 0364-9024
DOI - 10.1002/jgt.3190060209
Subject(s) - combinatorics , mathematics , degree (music) , graph , vertex (graph theory) , discrete mathematics , physics , acoustics
This paper concerns the degree sequence d 1 ≥ d 2 ≥ … ≥ d n of a randomly labeled graph of order n in which the probability of an edge is p(n) ≦ 1/2. Among other results the following questions are answered. What are the values of p(n ) for which d 1 , the maximum degree, is the same for almost every graph? For what values of p(n ) is it true that d 2 > d 2 for almost every graph, that is, there is a unique vertex of maximum degree? The answers are (essentially) p(n ) = o( logn/n/n ) and p(n)n/logn → ∞. Also included is a detailed study of the distribution of degrees when 0 < lim n p(n)/log n ≦ lim n p(n)/log n < ∞.

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