Lie groups: Bianchi classification @richarde.borcherds7998

Uploaded February 2021 | Updated September 2026, 2 weeks ago

This lecture is part of an online graduate course on Lie groups.

We give a sketch of the Bianchi classification of the Lie algebras and groups of dimension at most 3. We mention that this is related to the Thurston geometries of 3-manifolds.

For the other lectures in the course see youtube.com/playlist?list=PL8yHsr3EFj53RWBkiHKoOsTw-dGHAoJ-h

Theory of numbers: Congruences: Introduction

Theory of numbers: Congruences: Primitive roots

Introduction to number theory lecture 34. Gauss sums

Galois theory: Examples of Galois extensions

Introduction to number theory lecture 27. Groups and number theory

Elliptic functions lecture 4. The sigma function