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arXiv · 1908.00251

Local limit theorems for occupancy models

A. D. Barbour·Peter Braunsteins·Nathan Ross
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Abstract

We present a rather general method for proving local limit theorems, with a good rate of convergence, for sums of dependent random variables. The method is applicable when a Stein coupling can be exhibited. Our approach involves both Stein's method for distributional approximation and Stein's method for concentration. As applications, we prove local central limit theorems with rate of convergence for the number of germs with $d$ neighbours in a germ--grain model, and the number of degree-$d$ vertices in an Erd\H{o}s--R\'enyi random graph. In both cases, the error rate is optimal, up to logarithmic factors.

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A. D. Barbour, Peter Braunsteins, Nathan Ross. 2019-08-01. Local limit theorems for occupancy models. https://arxiv.org/abs/1908.00251

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