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artículo con referato
"Spectral properties of Google matrix Wikipedia and other networks"
Leonardo Ermann, Klaus M. Frahm and Dima L. Shepelyansky
Eur. Phys. J. B 86 (2013) 193
We study the properties of eigenvalues and eigenvectors of the Google matrix of the Wikipedia articles hyperlink network and other real networks. With the help of the Arnoldi method, we analyze the distribution of eigenvalues in the complex plane and show that eigenstates with significant eigenvalue modulus are located on well defined network communities. We also show that the correlator between PageRank and CheiRank vectors distinguishes different organizations of information flow on BBC and Le Monde web sites.
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