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12.42 (1992)

Solved

Describe the automorphisms of the Sylow $p$-subgroup of a Chevalley group of normal type over $\mathbb{Z}/p^m\mathbb{Z}$, $m \geqslant 2$, where $p$ is a prime.

Contributor: V. M. Levchuk

Progress

Described in (S. G. Kolesnikov, Algebra and Logic, 43, no. 1 (2004), 17–33); Izv. Gomel’ Univ., 36, no. 3 (2006), 137–146 (Russian); J. Math. Sci., New York, 152 (2008), 220–246).

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