Normalizers

In this video, we introduce the notion of a normalizer of a subgroup and present some examples.
This is lecture 6 (part 3/3) of the lecture series offered by Dr. Andrew Misseldine for the course Math 4230 - Abstract Algebra II at Southern Utah University. A transcript of this lecture can be found at Dr. Misseldine's website or through his Google Drive at:
drive.google.com/file/d/1WBde...
This lecture is based upon Section 15.1 of Abstract Algebra: Theory and Applications (abstract.ups.edu/) by Tom Judson. Please post any questions you might have below in the comment field and Dr. Misseldine (or other commenters) can answer them for you. Please also subscribe for further updates.