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2021 Students Enrolled in or before 2015 School of Science Mathematics

Advanced courses in Algebra B

Academic unit or major
Mathematics
Instructor(s)
Satoshi Naito
Class Format
Lecture
Media-enhanced courses
-
Day of week/Period
(Classrooms)
5-6 Thu (H137)
Class
-
Course Code
ZUA.A332
Number of credits
100
Course offered
2021
Offered quarter
2Q
Syllabus updated
Jul 10, 2025
Language
English

Syllabus

Course overview and goals

This course is the continuation of "Advanced courses in Algebra A".
A group representation on a vector space is a group homomorphism from a group to the group of invertible linear transformations on a vector space.
The aim of this course is to explain fundamental facts in the representation theory of finite groups; in particular, we explain tensor product representations, induced representations, and the relationship between restriction and induction of group representations.

Course description and aims

The goal of this course is to understand how the regular representation of a finite group (on its group algebra) decomposes into irreducible representations.

Keywords

tensor product representation, regular representation, induced representation, Frobenius reciprocity

Competencies

  • Specialist skills
  • Intercultural skills
  • Communication skills
  • Critical thinking skills
  • Practical and/or problem-solving skills

Class flow

Standard lecture course

Course schedule/Objectives

Course schedule Objectives
Class 1 Regular representation Details will be provided during each class session
Class 2 Irreducible decomposition of the regular representation Details will be provided during each class session
Class 3 Tensor product representations Details will be provided during each class session
Class 4 Representation matrices of tensor product representations Details will be provided during each class session
Class 5 Induced representations Details will be provided during each class session
Class 6 Representation matrices of induced representations Details will be provided during each class session
Class 7 Relationship between restriction and induction of representations Details will be provided during each class session

Study advice (preparation and review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

None required

Reference books, course materials, etc.

Bruce E. Sagan, The Symmetric Group, GTM, No. 203, Springer.

Evaluation methods and criteria

Course scores are evaluated by homework assignments. Details will be announced during the course.

Related courses

  • MTH.A201 : Introduction to Algebra I
  • MTH.A202 : Introduction to Algebra II
  • MTH.A203 : Introduction to Algebra III
  • MTH.A204 : Introduction to Algebra IV
  • MTH.A301 : Algebra I
  • MTH.A302 : Algebra II

Prerequisites

linear algebra and basic undergraduate algebra