Bass.math.uconn.edu, Jan 2016. — 422 p.
Version 3.1
Nearly every Ph.D. student in mathematics needs to take a preliminary or qualifying examination in real analysis. This book provides the necessary tools to pass such an examination. Every effort was made to present the material in as clear a fashion as possible.
Preface PreliminariesNotation and terminology
Some undergraduate mathematics
Proofs of propositions
Families of setsAlgebras and σ -algebras
The monotone class theorem
Exercises
Measures
Defenitions and examples
Exercises
Construction of measuresOuter measures
Lebesgue-Stieltjes measures
Examples and related results
Nonmeasurable sets
The Caratheodory extension theorem
Exercises
Measurable functionsMeasurability
Approximation of functions
Lusin's theorem
Exercises
The Lebesgue integralDefenitions
Exercises
Limit theoremsMonotone convergence theorem
Linearity of the integral
Fatou's lemma
Dominated convergence theorem
Exercises
Properties of Lebesgue integralsCriteria for a function to be zero a.e.
An approximation result
Exercises
Riemann integralsComparison with the Lebesgue integral
Exercises
Types of convergenceDefenitions and examples
Exercises
Product measuresProduct σ -algebras
The Fubini theorem
Examples
Exercises
Signed measuresPositive and negative sets
Hahn decomposition theorem
Jordan decomposition theorem
Exercises
The Radon-Nikodym theoremAbsolute continuity
The main theorem
Lebesgue decomposition theorem
Exercises
DifferentiationMaximal functions
Antiderivatives
Bounded variation
Absolutely continuous functions
Approach - differentiability
Approach - antiderivatives
Approach - absolute continuity
Exercises
Lp spacesNorms
Completeness
Convolutions
Bounded linear functionals
Exercises
Fourier transformsBasic properties
The inversion theorem
The Plancherel theorem
Exercises
Riesz representationPartitions of unity
The representation theorem
Regularity
Bounded linear functionals
Exercises
Banach spacesDefenitions
The Hahn-Banach theorem
Baire's theorem and consequences
Exercises
Hilbert spacesInner products
Subspaces
Orthonormal sets
Fourier series
Convergence of Fourier series
Exercises
TopologyDefenitions
Compactness
Tychono's theorem
Compactness and metric spaces
Separation properties
Urysohn's lemma
Tietze extension theorem
Urysohn embedding theorem
Locally compact Hausdor_ spaces
Stone-_Cech compacti_cation
Ascoli-Arzela theorem
Stone-Weierstrass theorems
Connected sets
Exercises
ProbabilityDefenitions
Independence
Weak law of large numbers
Strong law of large numbers
Conditional expectation
Martingales
Weak convergence
Characteristic functions
Central limit theorem
Kolmogorov extension theorem
Brownian motion
Exercises
Harmonic functionsDefenitions
The averaging property
Maximum principle
Smoothness of harmonic functions
Poisson kernels
Harnack inequality
Exercises
Sobolev spacesWeak derivatives
Sobolev inequalities
Exercises
Singular integralsMarcinkiewicz interpolation theorem
Maximal functions
Approximations to the identity
The Calderon-Zygmund lemma
Hilbert transform
Lp boundedness
Exercises
Spectral theoryBounded linear operators
Symmetric operators
Compact symmetric operators
An application
Spectra of symmetric operators
Spectral resolution
Exercises
DistributionsDefenitions and examples
Distributions supported at a point
Distributions with compact support
Tempered distributions
Exercises