| Instructor: | Dr. Peter Howard, Blocker 620D |
| Phone: 862-3459 | |
| Email: phoward@math.tamu.edu |
Office hours: MW 3:00-4:00; R 1:00-2:00; By appointment
Class time and place: MWF 1:50-2:40, Engineering/Physics Building (ENPH) 215.
Section web page: /~phoward/M670.html
Textbook: There is no textbook for the course, though
the following texts have been set on reserve in Evans library: F.
W. J. Olver, Introduction
to asymptotics and special functions,
Academic Press 1974. E. J. Hinch, Perturbation Methods, Cambridge
University Press 1991. N. G. DeBrujn, Asymptotic
methods in analysis, Interscience Publishers 1961.
Prerequisites: M642 or consent of instructor.
Catalogue Description: OLD: Mathematical tools of
applied mathematics; Fredholm alternative; integral operators; Green's
functions; unbounded operators; Stokes' theorem; distributions;
convolutions; Fourier transforms; applications.
NEW: Math 670 is devoted to topics in the application of modern
analysis
to a wide range of applications in engineering, the physical sciences,
the social sciences and the life sciences. The specific mathematical
topics covered will vary from year to year but will be chosen from:
partial differential equations, dynamical systems, integral equations
and variational calculus. Examples of the application areas to be
considered include: distributed control, inverse scattering, inverse
problems for partial differential equations, tomography, fluid
dynamics,
solid mechanics, biology, ecology and physiology. The course can be
taken three
times for credit.
Course Goal: Our primary interests will be asymptotic
analysis and perturbation methods, with special attention given to
applications of these methods to ordinary and partial differential
equations. Time permitting, we will also discuss relevant variational
methods.
Homework Assignments: Homework assignments will be made each Friday, due the following Friday. Assignments will depreciate by 5 points for each class period they are late for up to one week, at which time a 0 will be assigned.
Exams: There will be two exams during the semester, one evening midterm and a comprehensive final. The midterm exam will be Wednesday, October 20. Please make a note that the final exam for this class will be on Tuesday, December 14, 3:30--5:30.
Grades: Final grades will be determined in the following manner: Homework: 50%; Exams: 25% each. Grade ranges will be standard: 89.50-100, A; 79.50-89.49, B; 69.50-79.49, C, 59.50-69.49, D; below 59.50, F.
Make-up policy: Make-ups for exams will only be given if the student can provide a documented University-approved excuse (see University Regulations). According to University Student Rules students are required to notify an instructor by the end of the next working day after missing an exam. Otherwise the student forfeits his or her right to a make-up.
Scholastic Dishonesty: Copying work done by others, either
in-class
or out of class, is an act of scholastic dishonesty and will be
prosecuted
to the full extent allowed by University policy. "An Aggie does not
lie, cheat, or steal or tolerate those who do." Please refer to the
Honor Council Rules and Procedures, available at the Office of the Aggie Honor System.
Copyright policy: All printed materials disseminated in class or on the web are protected by copyright laws. One xerox copy (or download from the web) is allowed for personal use. Multiple copies or sale of any of these materials is strictly prohibited.
Students with Disabilities: The following statement was
provided by the Department of Student Life: The Americans with
Disabilities Act (ADA) is a federal anti-discrimination statute that
provides comprehensive civil rights protection for persons with
disabilities. Among other things, this legislation requires that all
students with disabilities be guaranteed a learning environment that
provides for reasonable accomodation of their disabilities. If
you believe you have a disability requiring an accomodation, please
contact the Department of Student Life, Services
for Students with Disabilities (SSD), in Room 126 of the
Koldus building or call 845-1637.
Class Schedule: Roughly speaking, we should cover the following material on the following schedule:
| Week of Monday | Material Covered |
|---|---|
| August 30 |
Algebraic perturbation theory |
| September 6 |
(Basic) Perturbation methods for ODE and PDE |
| September 13 |
Poincare's method of strained coordinates, multi-scale methods |
| September 20 |
Singular problems, boundary layer methods |
| September 27 | WKB approximation |
| October 4 |
Topics in perturbation theory |
| October 11 | Transform methods, integral representations |
| October 18 |
Asymptotics of real integrals (Riemann--Lebesque, Laplace's
method) Midterm Wed. Oct. 20 |
| October 25 | Asymptotics of complex integrals (Watson's lemma, steepest
descent methods, stationary phase) |
| November 1 |
Application to the Airy equation, WKB revisited |
| November 8 |
Applications to ODE dynamics |
| November 15 | Applications to PDE dynamics |
| November 22 | Introduction to energy and variational methods (Thanksgiving break, no class Fri. Nov. 26) |
| November 29 |
Minimax methods, and the Rayleigh--Ritz method |
| December 6 |
The mountain pass lemma and applications |