Phase transition in a power-law uniform hypergraph

Abstract

We propose a power-law $m$-uniform random hypergraph on $n$ vertexes. In this hypergraph, each vertex is independently assigned a random weight from a power-law distribution with exponent $\alpha\in(0,\infty)$ and the hyperedge probabilities are defined as functions of the random weights. We characterize the number of hyperedge and the number of loose 2-cycle. There is a phase transition phenomenon for the number of hyperedge at $\alpha=1$. Interestingly, for the number of loose 2-cycle, phase transition occurs at both $\alpha=1$ and $\alpha=2$.