Gill, Nick; Pyber, Laszlo; Short, Ian and Szabo, Endre
(2013).
On the product decomposition conjecture for finite simple groups.
Groups, Geometry, and Dynamics
(In press).
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Abstract
We prove that if G is a finite simple group of Lie type and S a subset of G of size at least two then G is a product of at most c*log|G|/log|S| conjugates of S, where c depends only on the Lie rank of G. This confirms a conjecture of Liebeck, Nikolov and Shalev in the case of families of simple groups of bounded rank. We also obtain various related results about products of conjugates of a set within a group.
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