Consider the network with N = 4 nodes and adjacency matrix A given by A = 0 11 1 1 0 1 1 0000 0000 (e) State the definition of the PageRank centrality. Calculate the PageRank centrality x; of each node i = 1, 2,..., N of the network and rank the nodes, from the most to the least central, according to their PageRank centrality.

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