科研之友
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摘要
Let F be a saturated fusion system over a finite p-group S, and let Z <= Z(n) (F), which is strongly closed in S with respect to F. In this paper, we prove that there is a natural bijection from the set of normal subsystems of F containing Z to the set of normal subsystems of the factor system F+ = F/Z. This generalizes a result of Aschbacher.
