Course Description  Concepts and examples of partial differential equations (PDE). Notion of wellposed problems. Basics of wave equations and diffusion equations. Fourier series, orthogonal expansions, and eigenvalue problems. SturmLiouville theory. Separation of variables for PDEs. Laplace's equation and Poisson's equation. 
Prerequisites  Math 20D and either 20F or Math 31AH, or consent of instructor. 
Textbook  W. A. Strauss, Partial Differential Equations: An Introduction, 2nd ed., Wiley, 2007. (Note: We will cover most of chapters 1  6.) 
Syllabus  Click here to see a tentative schedule of lectures and topics. 
Lectures  2:00 pm am  2:50 pm, Mondays, Wednesdays, and Fridays, Pepper Canyon Hall 121. 
Instructor  Professor Bo Li. Office: AP&M 5723. Phone: (805) 5346932. Email: bli@math.ucsd.edu. Office hours: 3:15 pm  4:00 pm, Mondays and Wednesdays. 
Discussion Sessions 
A01, 12:00 noon  12:50 pm, Thursdays, AP&M 5402.
A02, 1:00 pm  1:50 pm, Thursdays, AP&M 5402. 
Teaching Assistant  Mr. Ali Behzadan. Office: AP&M 5748. Email: abehzada@ucsd.edu. Office hours: 3:00 pm  5:00 pm Mondays and 12:00  2:00 Fridays. 
Homework 
Homework will be assigned, collected, and partially graded regularly.
Unless otherwise instructed, each homework is due in homework dropbox by
4:00 pm of Friday, a week after its assigned.
One homework assignment with the lowest score will be dropped.
Note: no late homework will be accepted unless a written verification of a valid excuse (such as hospitalization, family emergency, religious observance, court appearance, etc.) is provided. Note: homework solutions are posted here.

Exams 
There will be two midterm and one final, closebook and closenote exams.
No calculators will be allowed in these exams. The final exam will be cumulative.
Midterm Exam 1: 2:00 pm  2:50 pm, Friday, January 31, 2014. Pepper Canyon Hall 121. Midterm Exam 2: 2:00 pm  2:50 pm, Friday, February 28, 2014. Pepper Canyon Hall 121. Final Exam: 3:00 pm  5:59 pm, Monday, March 17, 2014. Place: to be announced. Note: neither rescheduled nor makeup exams will be allowed unless a written verification of a valid excuse (such as hospitalization, family emergency, religious observance, court appearance, etc.) is provided. 
Grading  The final course grade will be determined based on the homework and exams with the weights: homework  10%, midterm exam 1  25%, midterm exam 2  25%, and the final exam  40%. The final course grades will be curved. 