Module Identifier MA30210  
Module Title NORMS AND LINEAR DIFFERENTIAL EQUATIONS  
Academic Year 2001/2002  
Co-ordinator Professor N Lloyd  
Semester Semester 1  
Pre-Requisite MA11110 , MA21410  
Course delivery Lecture   19 x 1 hour lectures  
  Seminars / Tutorials   3 x 1 hour example classes  
Assessment Exam   2 Hours (written examination)   100%  
  Resit assessment   2 Hours (written examination)   100%  

General description


The development of Mathematical Analysis and its applications requires a concept of distance to be defined on a linear space. This can be achieved by introducing the idea of a norm. This module is concerned with the development of the theory of normed spaces leading to the proof of the contraction mapping theorem and an introduction to the fundamental ideas of the theory of linear differential equations.

Aims


To introduce the idea of a normed space and to familiarise students with the use of norms; to prove the contraction mapping theorem and to provide an introduction to the theory of linear differential equations.

Learning outcomes


On completion of this module, a student should be able to:

Syllabus


1. Normed spaces: definition, examples; equivalent norms.
2. Inner product spaces: definition, the Cauchy-Schwarz inequality, the norm corresponding to an inner product.
3. Finite dimensional spaces: the l_{1}, l_{2}, l_{infinity} norms; the equivalence of all norms on a finite-dimensional space.
4. Infinite dimensional spaces: the L_{1}, L_{2}, L_{infinity} norms on C[0,1]; norms on C^{1}[0,1].
5. Continuity of functions from one normed space to another. Continuous linear maps.
6. The norm of a continuous linear map and its calculation in simple cases.
7. The idea of completeness with reference to R^{n} and C[0,1] with the L_{infinity} norm.
8. Contraction mappings; the contraction mapping theorem.
9. Integral equations: the existence and uniqueness of solutions using the contraction mapping theorem.
10. Linear differential equations: the existence and uniqueness of solutions; the dimension of the solution space.

Reading Lists

Books
** Should Be Purchased
W A Light. (1990) An Introduction to Abstract Analysis. Chapman & Hall 0412310902
** Supplementary Text
N J De Lillo. (1982) Advanced Calculus with Applications. Macmillan 0029775302
J D Pryce. (1973) Basic Methods of Linear Functional Analysis. 0091134102
S Lang. (1969) Analysis I. Addison-Wesley X200707344