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2025 (Current Year) Faculty Courses School of Science Department of Mathematics Graduate major in Mathematics

Advanced topics in Algebra H1

Academic unit or major
Graduate major in Mathematics
Instructor(s)
Shou Yoshikawa
Class Format
Lecture
Media-enhanced courses
-
Day of week/Period
(Classrooms)
Class
-
Course Code
MTH.A508
Number of credits
100
Course offered
2025
Offered quarter
4Q
Syllabus updated
Mar 19, 2025
Language
English

Syllabus

Course overview and goals

Perfectoid was introduced to solve problems in both ring theory and algebraic geometry in mixed characteristic.
In the course, I introduce the definition, basic properties, and applications to ring theory of perfectoid.
This course is based on "Advanced topics in Algebra G1" in the third quarter.

Course description and aims

Students are expected to:
- understand the difference between ring theory in characteristic zero or positive and mixed characteristic,
- understand the definition and basic properties of perfectoid,
- understand applications of perfectoid.

Keywords

ring theory, mixed characteristic, perfectoid

Competencies

  • 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 homework assignments.

Course schedule/Objectives

Course schedule Objectives
Class 1 On extensions to perfectoids: part 1 Details will be provided during each class session
Class 2 On extensions to perfectoids: part 2 Details will be provided during each class session
Class 3 On extensions to perfectoids: part 3 Details will be provided during each class session
Class 4 Application of parfectoid: part 1 Details will be provided during each class session
Class 5 Application of parfectoid: part 2 Details will be provided during each class session
Class 6 Application of parfectoid: part 3 Details will be provided during each class session
Class 7 Relationship between perfectoid and Witt ring: part 1 Details will be provided during each class session
Class 8 Relationship between perfectoid and Witt ring: part 2 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.

B. Bhatt, M. Morrow, and P. Scholze, Integral p-adic Hodge theory, Publ. Math. Inst.BMS18 Hautes ´Etudes Sci. 128 (2018), 219–397. 7. MR3905467,
B. Bhatt and P. Scholze, Prisms and prismatic cohomology, Ann. of Math. (2) 196BS (2022), no. 3, 1135–1275. MR4502597.

Evaluation methods and criteria

Course scores are evaluated by homework assignments (100%). Details will be announced during the course.

Related courses

  • MTH.A507 : Advanced topics in Algebra G1
  • MTH.A301 : Algebra I
  • MTH.A302 : Algebra II
  • MTH.A211 : Advanced Linear Algebra I
  • MTH.A212 : Advanced Linear Algebra II

Prerequisites

Advanced linear algebra and basic undergraduate algebra

Contact information (e-mail and phone) Notice : Please replace from ”[at]” to ”@”(half-width character).

yoshikawa.s.9fe9[at]m.isct.ac.jp