Large Communities in a scale-free network

We prove the existence of a large complete subgraph w.h.p. in a preferential attachment random graph process with an edge-step. That is, we prove that the random graph $G_{t}$ produced by the so-called GLP model at time $t$ contains a complete subgraph of order $t^α$, where $α= (1-\varepsilon)\frac{1-p}{2-p}$, $\varepsilon$ is any number such that $0<\varepsilon<1$, and $0<p<1$ is a parameter of the model.

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