# Global eigenvalue fluctuations of random biregular bipartite graphs

26 Aug 2020  ·  Ioana Dumitriu, Yizhe Zhu ·

We compute the eigenvalue fluctuations of uniformly distributed random biregular bipartite graphs with fixed and growing degrees for a large class of analytic functions. As a key step in the proof, we obtain a total variation distance bound for the Poisson approximation of the number of cycles and cyclically non-backtracking walks in random biregular bipartite graphs, which might be of independent interest. As an application, we translate the results to adjacency matrices of uniformly distributed random regular hypergraphs.

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Probability Combinatorics