Toolkit Spring 2013 Lecture 4 : April 10 , 2013
نویسندگان
چکیده
This is the so-called Second Moment Method, since it uses the second moment, i.e. the variance of X. As an application of the above inequality, we presented some thresholds in the Erdős-Rényi Gn,p model. We extend that example here to show something that at first looks like a paradox. So, we consider a random graph G ∼ Gn,p and let Z1 be the number of copies of K4 in G, and Z2 be the number of copies of the following 5-node graph G0 in G:
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