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Math 53
Winter 2025

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The class meets for lecture on Monday, Wednesday, and Friday. This schedule contains the material covered in each lecture. It is generally one chapter per lecture. This schedule is tentative, and may be adjusted as necessary.

Lecture Date Chapter Topics Homework assignment
1 1/6 1 Course information and introduction to ODEs
2 1/8 2 First order ODEs I: autonomous and separable equations
Homework 1 (due 1/15)
3 1/10 3 First order ODEs II: dynamical perspective
4 1/13 4 First order ODEs III: stationary values, stability, phase lines
5 1/15 5 Mathematical Topics I: complex numbers
Homework 2 (due 1/22)
6 1/17 6 Second Order ODEs
1/20 MLK Jr. Day, no class
7 1/22 7 Systems of ODEs I: linear systems
Homework 3 (due 1/29)
8 1/24 8 Systems of ODEs II: solving first order systems
9 1/27 9 Systems of ODEs III: phase portraits and dynamics
10 1/29 10 Inhomogeneous ODEs I: integrating factors and variation of parameters
Homework 4 (due 2/5)
1/30 MIDTERM 1 (covers lectures 1--8)
11 1/31 11 Inhomogeneous ODEs II: inhomogeneous systems
12 2/3 12 Nonlinear Systems I: chaos and bifurcation
13 2/5 13 Nonlinear Systems II: linearization
Homework 5 (due 2/12)
14 2/7 14 Nonlinear Systems III: monotone and conserved quantities
15 2/10 15 Numerical Methods I: power series methods
16 2/12 16 Numerical Methods II: euler's method
Homework 6 (due 2/19)
17 2/14 17 Numerical Methods III: stiff ODEs
2/17 Presidents Day, no class
18 2/19 18 PDEs I: definitions and examples
Homework 7 (due 2/26)
2/20 MIDTERM 2 (covers lectures 9--17)
19 2/21 19 PDEs II: separation of variables
20 2/24 20 Fourier Series I: orthogonality and coefficients
21 2/26 21 Fourier Series II: solving ODEs and PDEs
Homework 8 (due 3/5)
22 2/28 22 Fourier Series III: higher-dimensional examples
23 3/3 23 Mathematical Topics II: complex Fourier series and transforms
24 3/5 24 Fourier Transforms I: definition and examples
Homework 9 (due 3/12)
25 3/7 25 Fourier Transforms II: solving ODEs and PDEs
26 3/10 26 Fourier Transforms III: convolution and integral formulas
27 3/12 na Numerical Methods IV: method of lines and spectral methods
Study for exam
28 3/14 na Exam Review
3/18 Final Exam (covers lectures 1-26, emphasis on 18-26)

Winter 2025 -- Department of Mathematics, Stanford University
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