MA 231: Honors-Level Differential Equations


Ordinary differential equations with applications to mechanics, biology, and physics. This is the honors-level companion to MA 226: it covers the same core methods for first- and second-order equations and linear systems, and then goes further — into Sturm–Liouville problems, vibrating strings, special functions, power series solutions near regular singular points, Laplace transforms, and the calculus of variations, including isoperimetric problems and Hamilton's principle. Students cannot receive credit for both MA 231 and CAS MA 226.

Course Information

Lecturer: Malavika Mukundan
Lectures: Monday, Wednesday, Friday, 12:20–1:10 PM; SOC B59
Discussion: Wednesday, 10:10–11:00 AM; COM 215 — students registering for the lecture must also register for this section
Office hours: Monday, Wednesday, Friday, 9:00–10:00 AM; CDS 307, or by appointment
Prerequisites: CAS MA 225 or CAS MA 230
Textbook: Differential Equations, Blanchard, Devaney & Hall, 4th edition; ISBN 978-1133109037. On reserve: Frederick S. Pardee Management Library, Reserve QA371 .B63 2012.
Software: DE Tools and Mathematica

Homework

Homework assignments will be posted here as they are assigned, with due dates. Homework assignments should be submitted as scanned/typed up pdfs on Blackboard.

Homework 1: From textbook, Section 1.1 problems 5,6,11 and Section 1.2 problems 17, 32. Due Friday, Sep 11 at 11:55pm

Homework 2: From textbook, Section 1.2 problems 41, 43, Section 1.3 problems 7, 8, 15, 22 and Section 1.4 problems 9, 10, 15, 16. Due Friday, Sep 18 at 11:55pm

Homework 3: From textbook, Section 1.5 problems 9 (for part c use Mathematica), 11, 14, 15, Section 1.6 problems 2, 11, 22, 26 and Section 1.7 problems 4, 7. Due Friday, Sep 25 at 11:55pm

Homework 4: From textbook, Section 1.7 problems 14, 17, Section 1.8 problems 4, 9 and Section 1.9 problem 27. Due Friday, Oct 2 at 11:55pm

Homework 5: From textbook, Section 1.9 problems 8, 18, Section 2.1 problems 8, 10, 11, Section 2.2 problems 11, 21 and Section 2.3 problems 1, 2, 8ab. Due Friday, Oct 9 at 11:55pm

Homework 6: From textbook, Section 2.4 problems 4, 7, 10, 13abc, Section 2.5 problems 1, 3a, 7 (use Mathematica for 1, 7) and Section 2.6 problems 1, 8, 10. Due Friday, Oct 16 at 11:55pm.

Exams

Midterm 1: Monday, October 5, during class time
Midterm 2: Monday, November 9, during class time
Final exam: Wednesday, December 16, 12:00–2:00 PM; SOC B59

Grading

Homework (equally weighted, two lowest scores dropped): 35%
Midterms (equally weighted): 40%
Final: 25%

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