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. 2020 Oct 3;896:1–84. doi: 10.1016/j.physrep.2020.09.005

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© 2020 The Author(s)

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Fig. 2 — Characteristics of the basic explored model networks. (a) A regular 2D square lattice, is the most degree-homogeneous network. (b) An Erdős–Rényi (ER) network, has a Poisson degree distribution and its degree heterogeneity is determined by the average degree $〈k〉$ . (c) A scale–free (SF) network, has a power-law degree distribution, yielding large degree heterogeneity. The degree distributions are shown for (d) the 2D square lattice, (e) the ER network and (f) the SF network.