Chapter 4: Conjugation, normal subgroups and simple groups | Essence of Group Theory
A VERY important concept of group theory, but often taught without any intuition, so much that it often confuses a lot of people when they first learned it (including me). Conjugation can be visualised easily with a (literal) change of perspective! This video also lays the foundation for quotient groups, which gives rise to some unexpected relationship with number theory. This channel is meant to showcase interesting but underrated maths (and physics) topics and approaches, either with completely novel topics, or a well-known topic with a novel approach. If the novel approach resonates better with you, great! But the videos have never meant to be pedagogical - in fact, please please PLEASE do NOT use YouTube videos to learn a subject. Other than commenting on the video, you are very welcome to fill in a Google form linked below, which helps me make better videos by catering for your math levels: https://forms.gle/QJ29hocF9uQAyZyH6 If you want to know more interesting Mathematics, stay tuned for the next video! SUBSCRIBE and see you in the next video! #mathemaniac #math #conjugation #grouptheory #simplegroups #normal #abstractalgebra

Chapter 5: Quotient groups | Essence of Group Theory

Chapter 3: Lagrange's theorem, Subgroups and Cosets | Essence of Group Theory

Group theory, abstraction, and the 196,883-dimensional monster

Normal Subgroups and Quotient Groups (aka Factor Groups) - Abstract Algebra

Chapter 1: Symmetries, Groups and Actions | Essence of Group Theory

What is Lie theory? Here is the big picture. | Lie groups, algebras, brackets #3

Why Normal Subgroups are Necessary for Quotient Groups

Commutativity and conjugates | Group theory episode 5

If Prime Numbers Become Increasingly Rare, Then Why Do They Keep Showing Up In Pairs?

Galois Theory Explained Simply

The origin of the commutator

Chapter 2: Orbit-Stabiliser Theorem | Essence of Group Theory

The hidden logic behind #, @, & and §

Group Definition (expanded) - Abstract Algebra

Chapter 6: Homomorphism and (first) isomorphism theorem | Essence of Group Theory

Group Theory: Lecture 18/30 - Conjugacy Classes and Centralizers

The Integral Explained Better Than School Ever Did

Simple Groups - Abstract Algebra

