The set of elements of a group such that

is said to be the normalizer with respect to a subset of group elements . If is a subgroup of , is also a subgroup containing .

The set of elements of a group such that

is said to be the normalizer with respect to a subset of group elements . If is a subgroup of , is also a subgroup containing .

Weisstein, Eric W. "Normalizer." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Normalizer.html