Fixed Fields
Channel: Andrew Misseldine
Date: 2022-04-08

In this video, we define the notion of a fixed set afforded by a set of field automorphisms and show this is a subfield, called the fixed field. 

This is lecture 34 (part 1/4) 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: 
https://drive.google.com/file/d/1R0IVSBLQYC64Xo5TtZ8g66YTl1vH-h8F/view

This lecture is based upon Sections 23.2 of Abstract Algebra: Theory and Applications (http://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.