Volume 19 Volume 19, Issue 4, 137–181 Volume 19, Issue 3, 95–135 Volume 19, Issue 2, 47–94 Volume 19, Issue 1, 1–46
Volume 17 Volume 17, Issue 3, 189–249 Volume 17, Issue 2, 77–188 Volume 17, Issue 1, 1-75
We give a new proof of the fact that special (abstract) rank one groups with arbitrary unipotent subgroups of size at least 4 are perfect.
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