I am currently facing a problem where I need to find the Normalizer of a subgroup. I have found examples where people compute the normalizer for specific subgroups, but no general approach.

Does anyone know of such an approach or of a source which explains it?


closed as too broad by amWhy, Derek Holt, Nosrati, KReiser, Shailesh Dec 8 '18 at 0:29

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    $\begingroup$ since these proofs often involve the specific structure if the group (i.e. free generators, relations...), it could be helpful to know which examples you are facing $\endgroup$ – Enkidu Dec 7 '18 at 11:12
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    $\begingroup$ Of course there are algorithms for computing normalizers in subgroups of $S_n$ for example, but you would need to ask much more specific questions if you were interested in the details. $\endgroup$ – Derek Holt Dec 7 '18 at 11:38