Topology and Introduction to Functional Analysis
Objectives
Our couse is intended to familiarize the students with the basic concepts, principles and methods of topology and functional analysis. Although the emphasis is mainly on normed linear spaces, with arbitrary dimension, some of the results are established in topological linear spaces. We study the basis of the more advanced theory of normed, Banach spaces and Hilbert spaces without which the usefulness of these spaces and their applications would be rather limited.
General characterization
Code
10984
Credits
6.0
Responsible teacher
Elvira Júlia Conceição Matias Coimbra
Hours
Weekly - 6
Total - 84
Teaching language
Português
Prerequisites
Knowledge in Linear Algebra and Mathematical Analysis.
Bibliography
1. Bollobás, B. (1990), Linear Analysis, an Introductory Course, Cambridge University Press.
2. Kreyszig, E. (1978), Introductory Functional Analysis with Applications, New York: John Wiley&Sons.
3. Lima, E. L. (1970), Elementos de Topologia Geral, Ao Livro Técnico, Editora da Universidade de São Paulo.
4. Sutherland, W. A. (2009), Introduction to Metric and Topological Spaces, Oxford University Press.
Teaching method
Theoretical issues are presented and explained in the theoretical class (3h/week). These issues are applied by students in the pratical class (3h/week).
Evaluation method
Evaluation is made by three tests along the semester or a final exam. The final classification is the weighted mean of the classification of the tests or, in alternative, the mark obtained in the final exam.
Subject matter
1. Metric spaces. Sequences. Cauchy sequences and convergent sequences. Complete metric spaces.
2. Topological spaces. Subspaces. relative topologie. Separability. Haurdorff spaces.
3. Continuity. Continuous mappings. Homeomorphisms. Compactness. Compact sets. Connected sets.
4. Linear normed spaces. Finite dimensional linear normed spaces. Compactnness and finite dimension. Bounded and continuous linear operators. Banach spaces.
5. Inner product spaces. Hilbert spaces. Orthonormal sequences and sets. Total orthonormal sets and sequences. Series related to Total orthonormal sets and sequences. Orthogonal complements and direct sums. Representation of functionals on Hilbert spaces( Riesz ´s theorem).
6. Some applications to the approximation theory. Approximation in Hilbert spaces.
7. Fundamental theorems in Banach spaces.