Homework

MATH 2403

Suggestion: Work ahead. If you have looked at the section and the corresponding problems before the lecture, then you will usually have two opportunities to ask questions (and at least a couple days) before we move on.


   Date    Chapter.Section/Topics   or   Page/Problems

M   May 23  Introduction: What is an ODE?  What kinds of ODEs are there, and 
            what do solutions look like?
            HW: 1.1.1,7,11,15,22,23; 1.2.1,4,6,13
W    25     More ODEs and Euler's Method 
            HW: 1.3.2,8,9,14,16;  1.4.1-6,8,10,12,15-21
M    30     First Order Equations (Linear, Separable, Exact, Slope  Fields)
            HW: 2.1.2,4,11,14,16,20 (solve in three different ways)
                   22,28,34,37
            Separable equations, Implicit solutions, and Exact Differentials
            HW:  2.2.2,6,7,12,21,25,31
                 2.6.2,4,10,13,16
W  June 1   2.3 Modeling
            HW: 2.3.2,4,(6),9,11,13,19,23,27,30
F     3     Existence and Uniqueness
            HW: 2.4.1-5,7-10,14,16,18,22,28-30
            Autonomous ODE and equilibria
            HW: 2.5.3,7,10,11,14-16,18,23
            HW: 2.6.17,19,23,32
M     6     holiday
W     8     Numerical Methods
            HW: 2.7.3,4,10,21(a-c),22(a)
                2.8.3,4,10
            Introduction to Nonlinear Systems (Chapters 3,7, and 6)
            HW: 7.1.1,2,3,4
                7.2.1
            Review for first exam
M    13     Midterm Exam (tentative) 
W    15     Nonlinear Systems:  Linearization, straight line solutions
            Review of Linear Algebra (Eigenvalues and Eigenvectors)
            Linear Existence and Uniqueness Theorem for Systems
            The Basis Theorem for Solution Space of Linear Homogeneous Systems
            General Assignment: Analyze any linear transormation on R^2
            e.g., Problems 3.1.13-32
            HW: 3.2.1,3,5,9,13,15,18
                3.3.17-24
                3.4.1-4
            NOTE:  When I taught this course last semester there were 
            several non-Georgia Tech students who had not had any linear 
            algebra.  So I did a full review of linear algebra.  I am not 
            going to do that this semester.  If you need to review linear 
            algebra, see the assigned problems from the Appendices below 
            (and read the Appendices).
M    20     Change of Basis, inverses, determinants, etc.
            See the "General Assignment" above.
W    22     Last (full) Day in Tianjin
            Isoclines and Separatrices
            Catalog of diagonalizable systems
            Complex ODEs 
            HW: 7.4.1,2
                3.2.19,20,21,24
                3.3.1,4,12,25,27
                3.4.7,11,13
Th   23     Last Recitation in Tianjin
M    27     First Lecture in Shanghai
            Solving All Constant Coefficient Systems 
            HW: 3.5.6,10,15,16
                3.6.3,10,13-16
                3.7.8
W    29     Summary of Linearization and Constant Coefficient Systems
            HW: 7.1.5,6,12,19,20
            READ section 7.2
                7.2.5,6,8,21,22,23
                7.3.3,4,6
                7.4.3,4,6
            READ Theorem 7.5.3
                7.5.16
M July 4    Other techniques for nonlinear systems
            Remember:  You have three extra homwork tasks to present in 
                       class today.
            Describe as fully as you can the following topics:
            1. Jordan form systems with zero eigenvalue
            2. Oscillations for critically damped and overdamped oscillators
            3. Phase plane diagram for a simple pendulum

            Suggestion:  Some people have asked about their grade.  If you 
            are concerned about your grade, you should definitely work the 
            six assigned problems in sections 7.3 and 7.4 and present one of 
            them at the board in class or during office hours.
W     6     Second order linear ODE (introduction 4.1-4.5)
            HW: Read sections 4.1,2, and 3
                4.1.4,5,11,14-16,17,20,25,26
                4.2.2-4,7,10,13-16,20,22
                4.3.2,10,17,18,30,32
                4.4.6,10,12,22,28-32
                4.5.5,10,12,14,19
M    11     More details and discussion of oscillators (forcing)
            HW: 4.6.2,4,7,9-11,15,16,28
W    13     More details and discussion of oscillators with forcing
            Resonance  
            HW: 4.7.8,10,12,14,15,17,23
            Introduction to Laplace Transforms
            HW: 5.2.26
                5.4.8,10,11,12
                5.6.2-6
                5.7.1-6,13
M    18     Laplace  Transforms
            Practice Final
W    20     
F    23     Final Exam



=================
Last Semester's Schedule (for reference only):



W    16     2.7-8 Runge-Kutta methods

M    21     Spring Break
W    23
M    28     More linear algebra and some first order systems
            I think we pretty well tackled Appendix A1, but for the record:
            HW: A1.3,5,8,9,10(a)
            HW: A2.1(a),(d),2,3,6,7,10,11,12,15
                A3.1,2,3,10,11,12,13,14.
            HW: 7.1.1,2,3,4
                7.2.1
W  Mar 2    More first order systems and more linear algebra
            HW: A4.1,2,3,11,14,17.
M    7      Nonlinear Systems and linearization
            Change of basis and determinants, inverses, etc.
            General Assignment: Analyze any linear transormation on R^2
            e.g., Problems 3.1.13-32
W    9      Rabbits and Foxes
            HW: 3.2.1,3,5,9,13,15,18
                3.3.17-24
                3.4.1-4
M   14      Solving all linear constant coefficient systems
            General assignment: Analyze any linear homogeneous constant 
                                coefficient system e.g., Problems 3.1.13-32
W   16      Solving all liner constant coefficient systems (part II)

M   21      Solving all linear constant coefficient systems (enough already!)

W   23      A Second Pass through linear constant coefficient systems (And 
            you thought you were experts!)

M   28      Chapter 7: Hamiltonians, Liapunov Functions, and Pendula
W   30      Review
M April 4   Second Order Linear ODE (Chapter 4)
W    6      Second Midterm (Test 2)
M   11      Second order linear ODE (introduction 4.1-4.5)
            HW: 4.1.4,5,11,14-16,17,20,25,26
                4.2.2-4,7,10,13-16,20,22
                4.3.2,10,17,18,30,32
                4.4.6,10,12,22,28-32
                4.5.5,10,12,14,19
W   13      
W   20      Final remarks on forcing.
            Laplace Transforms

M   25      Holiday
W   27      Review
Final Exam:  Thursday May 5, 2011.  13:00.