Simple groups of small Engel depth

Rolf Brandl, Daniela B. Nikolova
1986 Bulletin of the Australian Mathematical Society  
It is proved that the simple group PSL(2 3 q) satisfies a law \_x 3 _y] = [Xj yl j s > 3, if and only if q = 4 3 5, 8.
doi:10.1017/s0004972700003117 fatcat:folneqckmfc5pmcfurbevaiire