scholarly journals The number of graphs and a random graph with a given degree sequence

2012 ◽  
Vol 42 (3) ◽  
pp. 301-348 ◽  
Author(s):  
Alexander Barvinok ◽  
J.A. Hartigan
Keyword(s):  
Author(s):  
Yilun Shang

We consider the random graph modelG(w)for a given expected degree sequencew=(w1,w2,…,wn). Warmth, introduced by Brightwell and Winkler in the context of combinatorial statistical mechanics, is a graph parameter related to lower bounds of chromatic number. We present new upper and lower bounds on warmth ofG(w). In particular, the minimum expected degree turns out to be an upper bound of warmth when it tends to infinity and the maximum expected degreem=O(nα)with0<α<1/2.


2009 ◽  
Vol 46 (4) ◽  
pp. 1213-1220 ◽  
Author(s):  
Xian-Yuan Wu ◽  
Zhao Dong ◽  
Ke Liu ◽  
Kai-Yuan Cai

In this paper we focus on the problem of the degree sequence for a random graph process with edge deletion. We prove that, while a specific parameter varies, the limit degree distribution of the model exhibits critical phenomenon.


2011 ◽  
Vol 121 (4) ◽  
pp. 885-895 ◽  
Author(s):  
Kai-Yuan Cai ◽  
Zhao Dong ◽  
Ke Liu ◽  
Xian-Yuan Wu

2012 ◽  
Vol 41 (1) ◽  
pp. 99-123 ◽  
Author(s):  
Hamed Hatami ◽  
Michael Molloy

2017 ◽  
Vol 170 (1-2) ◽  
pp. 263-310 ◽  
Author(s):  
Felix Joos ◽  
Guillem Perarnau ◽  
Dieter Rautenbach ◽  
Bruce Reed

Author(s):  
Brendan D. McKay ◽  
Nicholas C. Wormald
Keyword(s):  

Author(s):  
Catherine Greenhill ◽  
Mikhail Isaev ◽  
Brendan D. McKay

Abstract We prove two estimates for the expectation of the exponential of a complex function of a random permutation or subset. Using this theory, we find asymptotic expressions for the expected number of copies and induced copies of a given graph in a uniformly random graph with degree sequence(d 1 , …, d n ) as n→ ∞. We also determine the expected number of spanning trees in this model. The range of degrees covered includes d j = λn + O(n1/2+ε) for some λ bounded away from 0 and 1.


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