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2021 Faculty Courses School of Science Department of Mathematics Graduate major in Mathematics

Advanced topics in Analysis A1

Academic unit or major
Graduate major in Mathematics
Instructor(s)
Yoshiyuki Kagei
Class Format
Lecture
Media-enhanced courses
-
Day of week/Period
(Classrooms)
3-4 Tue
Class
-
Course Code
MTH.C405
Number of credits
100
Course offered
2021
Offered quarter
1Q
Syllabus updated
Jul 10, 2025
Language
English

Syllabus

Course overview and goals

This course gives the theory of bifurcation and stability for the Navier-Stokes equations. In this course, basics of functional analysis and the standard bifurcation theory for partial differential equations are firstly explained; and an application of this theory is illustrated by considering stationary bifurcation problems for the incompressilble Navier-Stokes equations which is classified in a class of parabolic systems. Secondly, stationary bifurcation problems for compressilble Navier-Stokes equations is considered, which cannot be treated by the standard bifurcation theory. This course will be completed with "Advanced topics in Analysis B1" in the next quarter.

Course description and aims

The aim of this course is to learn some aspects of mathematical analysis of nonlinear partial differential equations through the bifurcation and stability analysis of the Navier-Stokes equations.

Keywords

Contraction mapping principle, implicit function theorem, Lyapunov-Schmidt method, bifurcation analysis, Navier-Stokes equations

Competencies

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

Class flow

This is a standard lecture course. Occasionally I will give problems for reports.

Course schedule/Objectives

Course schedule Objectives
Class 1 Functional analysis and Sobolev spaces 1 Details will be provided during each class session.
Class 2 Functional analysis and Sobolev spaces Details will be provided during each class session.
Class 3 Contraction mapping principle and implicit function theorem Details will be provided during each class session.
Class 4 Navier-Stokes equations Details will be provided during each class session.
Class 5 Bifurcation from a simple eigenvalue Details will be provided during each class session.
Class 6 Bifurcation analysis of the incompressible Navier-Stokes equations 1 Details will be provided during each class session.
Class 7 Bifurcation analysis of the incompressible Navier-Stokes equations 2 Details will be provided during each class session.
Class 8 Other topics 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

Reference books, course materials, etc.

- K. Masuda, Nonlinear mathematics (in Japanese), Asakura Shoten, 1985.

Evaluation methods and criteria

Attendance and Assignments.

Related courses

  • MTH.C406 : Advanced topics in Analysis B1

Prerequisites

Students are required to take Advanced topics in Analysis B1 (MTH.C406).

Other

None