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MATH3345 Algebra 2 Honours: Field extensions and Galois Theory

Later Year Course

Offered By Department of Mathematics
Academic Career Undergraduate
Course Subject Mathematics
Offered in First Semester, 2009 and First Semester, 2010
Unit Value 6 units
Course Description

Just as there is a formula for solving a quadratic equation, there are similar formulae for solving the general cubic and quartic. Galois theory provides a solution to the corresponding problem for quintics --- there is no such formula in this case! Galois theory also enables us to prove (despite regular claims to the contrary) that there is no ruler and compass construction for trisecting an angle.

Topics to be covered include:

Galois Theory – fields, field extensions, normal extensions, separable extensions. Revision of group theory, abelian and soluble groups. Galois’ Theorem. Solubility of equations by radicals. Finite fields. Cyclotomic fields.

Note: This is an HPC. It emphasises mathematical rigour and proof and continues the development of modern analysis from an abstract viewpoint.

Learning Outcomes

On satisfying the requirements of this course, students will have the knowledge and skills to:

1. Explain the fundamental concepts of field extensions and Galois theory and their role in modern mathematics and applied contexts
2. Demonstrate accurate and efficient use of field extensions and Galois theory
3. Demonstrate capacity for mathematical reasoning through analyzing, proving and explaining concepts from field extensions and Galois theory
4. Apply problem-solving using field extensions and Galois theory applied to diverse situations in physics, engineering and other mathematical contexts.
Indicative Assessment

Assessment will be based on:

  • Assignment 1 (20%; LO 1-4)
  • Assignment 2 (20%; LO 1-4)
  • Assignment 3 (20%; LO 1-4)
  • Take home exam (40%; LO 1-4)
Workload

36 lectures, tutorials by arrangement

Areas of Interest Mathematics
Requisite Statement A mark of 60 or more in MATH2322.
Consent Required Departmental consent is required to enrol in this course.
Science Group C
Academic Contact MATHadmin@anu.edu.au

The information published on the Study at ANU 2009 website applies to the 2009 academic year only. All information provided on this website replaces the information contained in the Study at ANU 2008 website.

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