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A limit theorem for scaled eigenvectors of random dot product graphs. (English) Zbl 1338.62061
Summary: We prove a central limit theorem for the components of the largest eigenvectors of the adjacency matrix of a finite-dimensional random dot product graph whose true latent positions are unknown. We use the spectral embedding of the adjacency matrix to construct consistent estimates for the latent positions, and we show that the appropriately scaled differences between the estimated and true latent positions converge to a mixture of Gaussian random variables. We state several corollaries, including an alternate proof of a central limit theorem for the first eigenvector of the adjacency matrix of an Erdős-Rényi random graph.

##### MSC:
 62E20 Asymptotic distribution theory in statistics 05C80 Random graphs (graph-theoretic aspects) 60F05 Central limit and other weak theorems
mclust
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