The eigenvalues of stochastic blockmodel graphs

03/30/2018

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by   Minh Tang, et al.

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We derive the limiting distribution for the largest eigenvalues of the adjacency matrix for a stochastic blockmodel graph when the number of vertices tends to infinity. We show that, in the limit, these eigenvalues are jointly multivariate normal with bounded covariances. Our result extends the classic result of Füredi and Komlós on the fluctuation of the largest eigenvalue for Erdős-Rényi graphs.