| Unit name | Galois Theory |
|---|---|
| Unit code | MATHM2700 |
| Credit points | 20 |
| Level of study | M/7 |
| Teaching block(s) |
Teaching Block 1 (weeks 1 - 12) |
| Unit director | Dr. Walling |
| Open unit status | Not open |
| Pre-requisites |
MATH33300 Group Theory, MATH 21800 Algebra 2. |
| Co-requisites |
None |
| School/department | School of Mathematics |
| Faculty | Faculty of Science |
Unit aims
To present an introduction to Galois theory in the context of arbitrary field extensions and apply it to a number of historically important mathematical problems.
General Description of the Unit
After reviewing some basic properties of polynomial rings, we will introduce the basic objects of study: field extensions and the automorphism groups associated to them. We will discuss certain desirable properties for field extensions and then demonstrate the fundamental Galois correspondence. This will be used to analyse some specific polynomials and in particular to exhibit a quintic which is not soluble by radicals. We will end with applications to finite fields and to the fundamental theorem of algebra.
Relation to Other Units
This is one of three Level 7 units which develop group theory in various directions. The others are Representation Theory and Algebraic Topology.
Additional unit information can be found at http://www.maths.bristol.ac.uk/study/undergrad/current_units/index.html
Learning Objectives
To gain an understanding and appreciation of Galois theory and its most important applications. To be able to use the theory in specific examples.
Transferable Skills
Using an abstract framework to better understand how to attack a concrete problem.
Lectures and exercises.
90% Examination
10% Coursework
Raw scores on the examinations will be determined according to the marking scheme written on the examination paper. The marking scheme, indicating the maximum score per question, is a guide to the relative weighting of the questions. Raw scores are moderated as described in the Undergraduate Handbook.
Reading and references are available at http://www.maths.bristol.ac.uk/study/undergrad/current_units/index.html
