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- Academic unit or major
- Mathematics
- Instructor(s)
- Naito Satoshi Naoi Katsuyuki
- Class Format
- Lecture
- Media-enhanced courses
- Day/Period(Room No.)
- Intensive ()
- Group
- -
- Course number
- ZUA.E332
- Credits
- 2
- Academic year
- 2018
- Offered quarter
- 3Q
- Syllabus updated
- 2018/3/20
- Lecture notes updated
- -
- Language used
- Japanese
- Access Index
-
Course description and aims
A current algebra is a Lie algebra defined to be the tensor product of a finite-dimensional simple Lie algebra and the ring of polynomials in one indeterminate.
The original motivation for the study of the representation theory of current algebras is the application to that of quantum loop algebras, but nowadays it is studied in various contexts such as the structure of an affine highest weight category, the relation with Macdonald polynomials, and so on.
In this lecture, we give a talk about some topics on the representation theory of current algebras; representations of current algebras are not completely reducible, and hence the study of these is not easy.
The main goal of this lecture is to give a detailed exposition on local/global Weyl modules, which are important examples of representations of current algebras, and also on the affine highest weight structure of the category of graded representations of current algebras.
The purpose of this lecture is to introduce several methods for studying representations of current algebras through the topics above.
Student learning outcomes
・Understand the method for studying representations of current algebras by using generators and relations.
・Understand the structure of local/global Weyl modules.
・Understand the affine highest weight structure of the category of graded representations of current algebras.
Keywords
current algebra, local Weyl module, global Weyl module, Demazure module, affine highest weight category
Competencies that will be developed
| ✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | Practical and/or problem-solving skills |
Class flow
This is a standard lecture course; there will be some assignments.
Course schedule/Required learning
| Course schedule | Required learning | |
|---|---|---|
| Class 1 | Basics on current algebras and their representations 1 | Details will be provided during each class session. |
| Class 2 | Basics on current algebras and their representations 2 | Details will be provided during each class session. |
| Class 3 | Basics on current algebras and their representations 3 | Details will be provided during each class session. |
| Class 4 | Local Weyl modules 1 | Details will be provided during each class session. |
| Class 5 | Local Weyl modules 2 | Details will be provided during each class session. |
| Class 6 | Local Weyl modules 3 | Details will be provided during each class session. |
| Class 7 | Global Weyl modules 1 | Details will be provided during each class session. |
| Class 8 | Global Weyl modules 2 | Details will be provided during each class session. |
| Class 9 | Global weyl modules 3 | Details will be provided during each class session. |
| Class 10 | Affine highest weight category 1 | Details will be provided during each class session. |
| Class 11 | Affine highest weight category 2 | Details will be provided during each class session. |
| Class 12 | Affine highest weight category 3 | Details will be provided during each class session. |
| Class 13 | Affine highest weight structure of the category of graded representations 1 | Details will be provided during each class session. |
| Class 14 | Affine highest weight structure of the category of graded representations 2 | Details will be provided during each class session. |
| Class 15 | Affine highest weight structuree of the category of graded representations 3 | Details will be provided during each class session. |
Textbook(s)
None in particular.
Reference books, course materials, etc.
None in particular.
Assessment criteria and methods
By assignments (100%); details will be provided during each class session.
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 (i.e., required knowledge, skills, courses, etc.)
None in particular.
