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Theory of Measure and Integration

Code: M4073     Acronym: M4073

Keywords
Classification Keyword
OFICIAL Mathematics

Instance: 2018/2019 - 1S

Active? Yes
Responsible unit: Department of Mathematics
Course/CS Responsible: Master in Mathematics

Cycles of Study/Courses

Acronym No. of Students Study Plan Curricular Years Credits UCN Credits ECTS Contact hours Total Time
M:M 8 Plano de Estudos do M:Matemática 1 - 9 63 243

Teaching language

Portuguese

Objectives

The main objective is to make a general introduction to measure theory and integration in order to provide the student with the tools to study and understand further issues in different areas such as Analysis, Physics, Probability and Statistics or Ergodic Theory.

Learning outcomes and competences

At the end of the course the student should be acquainted with the main concepts of measure theory, have a basic knowledge of integration in measure  spaces. In particular, the student should be able to integrate with respect to Lebesgue measure and Lebesgue-Stieltjes measures.  The student should also learn about absolute continuity and product spaces. The student should understand and learn about different types of convergence and their relations. The student should also be able to understand the connections between probability theory and measure theory.

Working method

Presencial

Program




(§ 1) Theory of sets

1.1. Set operations
1.2. Functions, inverse image and properties
1.3. Classes of subsets

(
§ 2) Set functions


2.1. Aditivity, σ-aditivity, notion of measure 2.2. Continuity of measures
2.3. Hahn-Jordan decomposition
2.4. Probability spaces


(§ 3) Construction and properties of measures

3.1. Carathéodory Extension Theorem
3.2. Lebesgue measure
3.3. Lebesgue-Stieltjes measure


(§ 4) Integration in measure spaces

4.1. Measurable functions; notion of random variable
4.2. Definition of the integral with respect to a measure and proprerties
4.3. Lebesgue’s monotone and dominated convergence theorems
4.4. Expected value of a random variable


(§ 5) Relations between spaces and measures

5.1. Product measure; Fubini’s Theorem
5.2. Radon-Nikodym Theorem
5.3. Riesz Representation Theorem.


(§ 6) Lp spaces and convergence

6.1. Jensen’s, H ̈older’s, Minkowski’s and Chebyshev’s inequalities 6.2. Borel-Cantelli Lemma
6.3. Convergence of functions:
   (i) pointwise
   (ii) in measure
   (iii) in
p-mean
6.4. Weak convergence; Portmanteau’s Theorem
6.5. Weak Law of Large Numbers and Central Limit Theorem
6.6. Relations between different convergence notions


(§ 7) Advanced Topics

7.1. Lebesgue’s differentiation and density theorems
7.2. Topics of Ergodic Theory
   (i) Recurrence
   (ii) Birkhoff’s Ergodic Theorem and the Strong Law of Large Numbers




Mandatory literature

Kingman J. F. C. (John Frank Charles); Introduction to measure and probability. ISBN: 0-521-05888-0

Complementary Bibliography

Halmos Paul R.; Measure theory. ISBN: 0-387-90088-8
Billingsley Patrick; Probability and measure. ISBN: 0-471-00710-2
Rudin Walter; Real and complex analysis. ISBN: 0-07-054233-3
Feller William; An introduction to probability theory and its applications

Teaching methods and learning activities

Each lesson has lasts for 2 hours and the last half hour of each one is to be spent with exercises. Some list of pertinent exercises will be given to the students.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

designation Weight (%)
Exame 70,00
Trabalho escrito 30,00
Total: 100,00

Amount of time allocated to each course unit

designation Time (hours)
Estudo autónomo 21,00
Frequência das aulas 58,50
Trabalho escrito 5,00
Total: 84,50

Eligibility for exams

Does not apply.

Calculation formula of final grade

Evaluation will be held by a final exam with a weight 14 out of 20 and a written report with the remaining 6 points.
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