COURSE SYLLABUS Course Number: MATH 7070 Course Title: INTERPOLATION I Credit Hours: 3 Prerequisites: Departmental approval Corequisite: Objectives: To present to the interested graduate student the techniques and theory of the branch of interpolation theory within the area of Numerical Mathematics. The course is designed to lead the interested student to Ph. D. level research in the field. Course Content: Existence and uniqueness of best approximation. (3 hrs.) Polynomial interpolation: Lagrange interpolation. Norm of the Lagrange interpolation; Divided differences and Newton's form of the Lagrange interpolation. Hermite interpolation. The Bernstein-Erdos conjectures on the norm of optimal interpolation. (12 hrs.) Uniform convergence of polynomial approximations: Weierstrass theorem. Monotone operators. Bernstein polynomials. (3 hrs.) Theory of minimax approximation: Chebyshev alternation theorem. (3 hrs.) Least squares approximation and introduction to orthogonal polynomials. (2 hrs.) Approximation of periodic functions: Fourier series, Fejer and de la Vallee-Poussin means. Discrete Fourier series (trigonometric interpolation). Fast Fourier transforms. (9 hrs) Best L_1 approximation: Jackson's operator and Jackson's Theorem 1. (3 hrs.) Possible Textbooks: M. J. D. Powell, Approximation Theory and Methods, Cambridge University Press, New York, 1981. P. J. Davis, Interpolation and Approximation, Dover, New York, 1975. J. Szabados and P. Vertesi, Interpolation of Functions, World Scientific Publishing, Singapore, 1990. Sample Grading and Evaluation Procedures A graduate student is expected to creatively engage the mathematical material of the course. The student will be given problems to solve; these problems may include the derivation of proofs to theorems. These solutions may be presented in class on the blackboard or be written up to be handed in to the instructor. Extended projects may also be assigned. Grade Calculation Presentation of solutions to problems/theorems, homework: 40% Midterm exam or midterm project: 25% Final Exam or culminating project: 35% There may be variations in these procedures depending on the individual instructors and the nature of the specific material. Sample Statement Re: Accommodations Students who need accommodations are asked to arrange a meeting during office hours the first week of classes, or as soon as possible if accommodations are needed immediately. If you have a conflict with my office hours, an alternate time can, be arranged. To set up this meeting, please contact me by E-mail. Bring a Copy of your Accommodation Memo and an Instructor Verification Form to the meeting. If you do not have an Accommodation Memo but need accommodations, make an appointment with The Program for Students with Disabilities, 1244 Haley Center, 844-2096 (V/TT). (Note: Instructor office room, office hours and email address will be made available on the course syllabus and on the first day of class.) JUSTIFICATION FOR GRADUATE CREDIT This course is part of a modified semester version of a 600-level sequence under the quarter system. Under the quarter system it was specifically designed as a graduate course. It was approved as part of our graduate program and has been a traditional part of our graduate program offerings. Outside of modernization, the standard of the course remains at the same graduate level that the department has maintained in the past. Due to the semester changes the number of hours for the original material has decreased. The loss of material will not affect the depth of instruction of the remaining topics. The topics selected for the semester course from the quarter course are those critical to the understanding of the subject. The course demands considerable mathematics background and a degree of mathematical maturity traditionally found at the graduate level. The 7000-level course will inculcate the same analytical skills and depth of understanding previously demanded by the comparable 600-level quarter course. In order to successfully complete the course the student will have to demonstrate an ability to creatively examine and apply the mathematics presented in the course.