M612: Partial Differential Equations

Course Materials:

Syllabus
Topics for the Midterm Exam

Homework Assignments: 

Assignment 1
Assignment 2
Assignment 3
Assignment 4
Assignment 5
Assignment 6
Assignment 7
Assignment 8
Assignment 9
Assignment 10

Online Lectures

Monday, March 23, 2020

M612 as an Online Course (8:52)
Compact Embeddings (4:46)
Difference Quotients (8:07)
The Space H-1 (8:27)
Full Lecture PDF (12 pages)

Wednesday, March 25, 2020

Second Order Elliptic PDE (10:28)
Weak Solutions (11:50)
Full Lecture PDF (13 pages)

Friday, March 27, 2020

The Lax-Milgram Theorem (8:31)
Proof of the Lax-Milgram Theorem (12:44)
Full Lecture PDF (15 pages)

Monday, March 30, 2020

The Main Energy Estimate (11:16)
Existence of Weak Solutions (5:44)
The Terminology ''Energy Estimates'' (6:54)
Full Lecture PDF (13 pages)

Wednesday, April 1, 2020

Adjoint Operators on Hilbert Spaces (7:27)
The Fredholm Alternative for Compact Operators (5:21)
The Fredholm Alternative for Elliptic Operators (10:52)
Full Lecture PDF (12 pages)

Friday, April 3, 2020

Proof of Theorem 6.2.4, Part I (12:15)
Proof of Theorem 6.2.4, Part II (13:44)
Full Lecture PDF (14 pages)

Monday, April 6, 2020

Spectral Theory for Compact Operators (3:38)
The Resolvent for Elliptic Operators: Theorem 6.2.5 (11:03)
The Resolvent for Elliptic Operators: Theorem 6.2.6 (11:50)
Full Lecture PDF (19 pages)

Wednesday, April 8, 2020

Interior Regularity: Overview (5:23)
Interior Regularity: Theorem 6.3.1, Part I (7:23)
Interior Regularity: Theorem 6.3.1, Part II (9:51)
Full Lecture PDF (31 pages)

Friday, April 10, 2020

University Reading Day

Monday, April 13, 2020

Interior Regularity: Theorem 6.3.1, Part III (20:38)
Interior Regularity: Theorem 6.3.1, Part IV (17:06)

Wednesday, April 15, 2020

Higher Interior Regularity (7:49)
Boundary Regularity, Part I (20:15)
Full Lecture PDF (33 pages)

Friday, April 17, 2020

Boundary Regularity, Part II (23:29)
Boundary Regularity, Part III (9:59)
Higher Boundary Regularity (3:28)

Monday, April 20, 2020

Function Spaces Involving Time: Classcial Theory (13:43)
Function Spaces Involving Time: Bochner Integration (6:14)
Function Spaces Involving Time: Lp (0,T; X) (9:35)
Full Lecture PDF (18 pages)

Wednesday, April 22, 2020

Function Spaces Involving Time: The Sobolev Space W1,p(0,T;X) (4:30)
Function Spaces Involving Time: Sobolev Embedding and Calculus (12:00)
Function Spaces Involving Time: More Sobolev Embedding and Calculus (21:38)
Full Lecture PDF (23 pages)

Friday, April 24, 2020

Second Order Parabolic PDE: Definitions and Assumptions (6:47)
Second Order Parabolic PDE: The Weak Formulation (10:16)
Second Order Parabolic PDE: Galerkin Approximations (12:41)
Full Lecture PDF (20 pages)

Monday, April 27, 2020

Second Order Parabolic PDE: Energy Estimates (24:33)
Second Order Parabolic PDE: Existence of Weak Solutions (17:33)
Full Lecture PDF (23 pages)

Tuesday, April 28, 2020

Second Order Parabolic PDE: Uniqueness (3:49)
Second Order Parabolic PDE: Regularity, Part I (6:09)
Second Order Parabolic PDE: Regularity, Part II (20:11)
Topics for the Final Exam (4:25)
Full Lecture PDF (19 pages)