arXiv · 1510.03740
We show that small normal subsets $A$ of finite simple groups expand very rapidly -- namely, $|A^2| \ge |A|^{2-ε}$, where $ε>0$ is arbitrarily small.
Martin W. Liebeck, Gili Schul, Aner Shalev. 2015-10-13. Rapid expansion in finite simple groups. https://arxiv.org/abs/1510.03740
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