内容简介
1 Banach Spaces
1 The Banach Space of Continuous Functions
2 Abstract Banach Spaces
3 The Conjugate Space of Continuous Linear Functionals
4 Examples of Banach spaces:co,l1,and l∞
5 Weak Topologies on Banach Spaces
6 The Alaoglu Theorem
7 The Hahn-Banach Theorem
8 The Conjugate Space of C([0,1])
9 The Open Mapping Theorem
10 The Lebesgue Spaces:L1 and L∞
11 The Hardy Spaces:H1 and H∞
Notes
Exercises
2 Banach Algebras
1 The Banach Algebra of Confinuous Functions
2 Abstract Banach Algebras
3 Abstract Index in a Banach Algebra
4 The Space of Multiplicative Linear Functions
5 The Gelfand Transform
6 The Gelfand-Mazur Theorem
7 The Gelfand Theorem for Commutative Banach Algebras
8 The Spectral Radius Formula
9 The Stone-Weierstrass Theorem
10 The Generalized Stone-Weierstrass Theorem
11 The Disk Algebra
12 The Algebra of Functions with Absolutely Convergent Fourier Series
13 The Algebra of Bounded Measurable Functions
Notes
Exercises
3 Geometry of Hilbert Space
1 Inner Product Spaces
2 The Cauchy-Schwarz Inequality
3 The Pythagorean Theorem
4 Hilbert Spaces
5 Examples of Hilbert Spaces:Cn,l2,L2,and H2
6 The Riesz Representation Theorem
7 The Existence of Orthonormal Bases
8 The Dimension of Hilbert Spaces
Notes
Exercises
4 Operators on Hilbert Space and C-Algebras
1 The Adioint Operator
2 Normal and Self-adjoint Operators
3 Projections and Subspaces
4 Multiplication Operators and Maximal Abelian Algebras
5 The Bilateral Shift Operator
6 C-Algebras
7 The Gelfand-Naimark Theorem
8 The Spectral Theorem
9 The Functional Calculus
10 The Square Root of Positive Operators
11 The Unilateral Shift Operator
12 The Polar Decomposition
13 Weak and Strong Operator Topologies
14 W-Algebras
15 Isomorphisms of L∞-Spaces
16 Normal Operators with Cyclic Vectors
17 Maximal Abelian W-Algebras
18 Homomorphisms of C-Algebras
19 The Extended Functional Calculus
20 The Fuglede Theorem
Notes
Exercises
5 Compact Operators,Fredholm Operators,and Index Theory
1 The Ideals of Finite Rank and Compact Operators
2 Approximation of Compact Operators
3 Examples of Compact Operators:Integral Operators
4 The Calkin Algebra and Fredholm Operators
5 Atkinson's Theorem
6 The Index of Fredholm Operators
7 The Fredholm Altemative
8 Volterra Integral Operators
9 Connectedness of the Unitary Group in a W-Algebra
10 Characterization of Index
11 Quotient C-Algebras
12 Representations of the C-Algebra of Compact Operators
Notes
Exercises
6 The Hardy Spaces
1 The Hardy Spaces:H1,H2,and H∞
2 Reducing Subspaces of Unitary Operators
3 Beurling's Theorem
4 The F.and M.Riesz Theorem
5 The Maximal Ideal Space of H∞
6 The Inner-Outer Factorization of Functions in H2
7 The Modulus of Outer Functions
8 The Conjugates of H1 and L∞/H∞0
9 The Closedness of H∞+C
10 Approximation by Quotients of Inner Functions
11 The Gleason-Whitney Theorem
12 Subalgebras between H∞ and L∞
13 Abstract Harmonic Extensions
14 The Maximal Ideal Space of H∞+C
15 The Invertibility of Functions in H∞+C
Notes
Exercises
7 Toeplitz Operators
1 Toeplitz Operators
2 The Spectral Inclusion Theorem
3 The Symbol Map
4 The Spectrum of Self-adjoint Toeplitz Operators
5 The Spectrum of Analytic Toeplitz Operators
6 The C-Algebra Generated by the Unilateral Shift
7 The Invertibility of Toeplitz Operators with Continuous Symbol
8 The Invertibility of Unimodular Toeplitz Operators and Prediction Theory
9 The Spectrum of Toeplitz Operators with Symbol in H∞+C
10 The Connectedness of the Essential Spectrum
11 Localization to the Center of a C-Algebra
12 Locality of Fredholmness for Toeplitz Operators
Notes
Exercises
References
Index