SubjectsSubjects(version: 978)
Course, academic year 2025/2026
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Functional Analysis 1 - NMMA401
Title: Funkcionální analýza 1
Guaranteed by: Department of Mathematical Analysis (32-KMA)
Faculty: Faculty of Mathematics and Physics
Actual: from 2025
Semester: winter
E-Credits: 8
Hours per week, examination: winter s.:4/2, C+Ex [HT]
Capacity: unlimited
Min. number of students: unlimited
4EU+: no
Virtual mobility / capacity: no
State of the course: taught
Language: English, Czech
Teaching methods: full-time
Guarantor: prof. RNDr. Jiří Spurný, Ph.D., DSc.
Teacher(s): prof. RNDr. Jiří Spurný, Ph.D., DSc.
Class: M Mgr. MA
M Mgr. MA > Povinné
M Mgr. MOD
M Mgr. MOD > Povinně volitelné
Classification: Mathematics > Functional Analysis
Incompatibility : NMMO410
Is incompatible with: NMMO410
Is interchangeable with: NRFA051, NRFA050
Annotation -
Mandatory course for master study programmes Mathematical analysis and Mathematical modelling in physics and technics. Recommended for the first year of master studies. The course is devoted to advanced topics in functional analysis - locally convex spaces and weak topologies, theory of distributions, vector integration, compact convex sets.
Last update: Pyrih Pavel, doc. RNDr., CSc. (12.05.2022)
Course completion requirements -

Rules for the academic year 2025/2026:

The course is concluded with a credit and an exam.

Every student enrolled in the course who successfully passes the exam will receive a credit.

The exam has only an oral part, which consists of two theoretical questions and one example.

Last update: Spurný Jiří, prof. RNDr., Ph.D., DSc. (08.09.2025)
Literature -

Rudin, W.: Functional analysis. Second edition, McGraw-Hill, Inc., New York, 1991 (chapters 1-3 and 6-7)

M.Fabian et al.: Banach Space Theory, Springer 2011 (chapter 3)

J.Diestel and J.J.Uhl: Vector measures, Mathematical Surveys and Monongraphs 15, American Mathematical Society 1977 (sections III.1-III.3)

R.R.Ryan: Introduction to tensor products of Banach spaces, Springer 2002 (sections 2.3 and 3.3)

Last update: Kalenda Ondřej, prof. RNDr., Ph.D., DSc. (15.09.2023)
Requirements to the exam -

The exam is oral with the possibility of a written preparation. Mainly knowledge and understanding of the notions and theorems explained during the semester will be tested. In addition, solving selected problems using the methods explained during the course will be a part of the exam. The lectures are the main source of materials for the exam.

Last update: Cúth Marek, doc. Mgr., Ph.D. (29.09.2022)
Syllabus -
1. Locally convex spaces

Definitions of a topological vector spaces and of a locally convex space

Minkowski functionals, seminorms, generating locally convex topologies using seminorms

Boundedness in a locally convex space

Metrizability and normability of locally convex spaces

Continuous linear mappings between locally convex spaces, linear functionals

Hahn-Banach theorem - extending and separating

Fréchet spaces

Weak topologies - topology generated by a subspace of the algebraic dual, weak and weak* topologies, Goldstine, Banach-Alaoglu, reflexivity and weak compactness, bipolar theorem

2. Elements of the theory of distributions

Space of test functions and the convergence in it

Distributions - definition, examples, operations, characterizations

order of a distribution, convergence of distributions

convolution of a distribution and a test function, approximate unit

convolution of two distributions - examples that it sometimes works

Schwarz space as a Fréchet space

Tempered distributions and their characterizations

Fourier transform of tempered distributions

convolution of tempered distributions

possibly the support of a distribution

3. Elements of vector integration

Measurability of vector-valued functions, Pettis theorem

Weak integrability, Dunford and Pettis integrals

Bochner integral

Bochner spaces

Duality of Bochner spaces (briefly, no proofs)

4. Convex compact sets

Extreme points

Krein-Milman theorem

integral representation theorem

Last update: Spurný Jiří, prof. RNDr., Ph.D., DSc. (08.09.2025)
Entry requirements -

Mandatory course for master study branches Mathematical analysis and Mathematical modelling in physics and technics. It is required to know notions, methods and results from the course Introduction to Functional Analysis NMMA331. Knowledge of basic concepts of general topology (topological spaces, continuous mappings, compactness) is recommended.

Last update: Kalenda Ondřej, prof. RNDr., Ph.D., DSc. (01.09.2021)
 
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