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  6. MX4082: Galois Theory

MX4082: GALOIS THEORY (2019-2020)

Last modified: 25 Sep 2019 09:58


Course Overview

Galois theory is based around a simple but ingenious idea: that we can study field extensions by instead studying the structure of certain groups associated to them. This idea can be employed to solve some problems which confounded mathematicians for centuries, including the impossibility of trisecting an angle with ruler and compass alone, and the insolubility of the general quintic equation.



Course Details

Study Type Undergraduate Level 4
Session First Sub Session Credit Points 15 credits (7.5 ECTS credits)
Campus Aberdeen Sustained Study No
Co-ordinators
  • Dr Jean-Baptiste Gramain

Qualification Prerequisites

  • Programme Level 4

What courses & programmes must have been taken before this course?

What other courses must be taken with this course?

None.

What courses cannot be taken with this course?

None.

Are there a limited number of places available?

No

Course Description

  • Field Theory, Field Extensions.
  • Constructible Numbers.
  • The Galois Group of a Field Extension.
  • Cyclotomic Fields.
  • Splitting Fields of Polynomials.
  • Normal Extensions, Separable Extensions.
  • Simple Fields Extensions.
  • Counting Field Homomorphisms.
  • Galois Extensions.
  • The Galois Correspondence.
  • Cyclic Galois Groups.
  • Radical Extensions and Solvable Galois Groups.
  • The Galois Group of a Polynomial. Applications.

Syllabus

  • Constructible numbers.
  • The impossibility of trisecting an angle and squaring the circle.
  • Normal and separable field extensions. Galois extensions. Galois groups.
  • The Galois correspondence.
  • The Galois group of a polynomial.
  • The use of Galois theory in the solution of polynomial equations.
  • The impossibility of solving general polynomial equations of degree five or greater by radicals.

Contact Teaching Time

Information on contact teaching time is available from the course guide.

Teaching Breakdown

More Information about Week Numbers


Details, including assessments, may be subject to change until 31 August 2023 for 1st half-session courses and 22 December 2023 for 2nd half-session courses.

Summative Assessments

Exam

Assessment Type Summative Weighting 80
Assessment Weeks Feedback Weeks

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Feedback

Students will be invited to contact Course Coordinators for feedback on the final examination.
Learning Outcomes
Knowledge LevelThinking SkillOutcome
Sorry, we don't have this information available just now. Please check the course guide on MyAberdeen or with the Course Coordinator

Homework

Assessment Type Summative Weighting 10
Assessment Weeks Feedback Weeks

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Feedback
Learning Outcomes
Knowledge LevelThinking SkillOutcome
Sorry, we don't have this information available just now. Please check the course guide on MyAberdeen or with the Course Coordinator

Homework

Assessment Type Summative Weighting 10
Assessment Weeks Feedback Weeks

Look up Week Numbers

Feedback
Learning Outcomes
Knowledge LevelThinking SkillOutcome
Sorry, we don't have this information available just now. Please check the course guide on MyAberdeen or with the Course Coordinator

Formative Assessment

There are no assessments for this course.

Resit Assessments

Best of written exam (100%) or written exam (80%) with carried forward in-course assessment (20%)

Assessment Type Summative Weighting
Assessment Weeks Feedback Weeks

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Feedback
Learning Outcomes
Knowledge LevelThinking SkillOutcome
Sorry, we don't have this information available just now. Please check the course guide on MyAberdeen or with the Course Coordinator

Course Learning Outcomes

Knowledge LevelThinking SkillOutcome
Sorry, we don't have this information available just now. Please check the course guide on MyAberdeen or with the Course Coordinator
 

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