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From Wikipedia, the free encyclopedia
In mathematics, in the field of group theory, a subgroup of a group is called c-normal if there is a normal subgroup of such that and the intersection of and lies inside the normal core of .
This article relies largely or entirely on a single source. (November 2015) |
For a weakly c-normal subgroup, we only require to be subnormal.
Here are some facts about c-normal subgroups:
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