Preface
1. The Complex Numbers
Introduction
1.1. The Field of Complex Numbers
1.2. The Complex Plane
1.3. Topological Aspects of the Complex Plane
1.4. Stereographic Projection; The Point at Infinity
Exercises
2. Functions of the Complex Variable z
Introduction
2.1. Analytic Polynomials
2.2. Power Series
2.3. Differentiability and Uniqueness of Power Series
Exercises
3. Analytic Functions
3.1. Analyticity and the Cauchy-Riemann Equations
3.2. The Functions ez, sin z, cos z
Exercises
4. Line Integrals and Entire Functions
Introduction
4.1. Properties of the Line Integral
4.2. The Closed Curve Theorem for Entire Functions
Exercises
5. Properties of Entire Functions
5.1. The Cauchy Integral Formula and Taylor Expansion for Entire Functions
5.2. Liouville Theorems and the Fundamental Theorem of Algebra
Exercises
6. Properties of Analytic Functions
Introduction
6.1. The Power Series Representation for Functions Analytic in a Disc
6.2. Analyticity in an Arbitrary Open Set
6.3. The Uniqueness, Mean-Value, and Maximum-Modulus Theorems
Exercises
7. Further Properties of Analytic Functions
7.1. The Open Mapping Theorem; Schwarz’ Lemma
7.2. The Converse of Cauchy’s Theorem: Morera’s Theorem; The Schwarz Reflection Principle
Exercises
8. Simply Connected Domains
8.1. The General Cauchy Closed Curve Theorem
8.2. The Analytic Function Log z
Exercises
9. Isolated Singularities of an Analytic Function
9.1. Classification of Isolated Singularities; Riemann’s Principle and the Casorati-Weierstrass Theorem
9.2. Laurent Expansions
Exercises
10. The Residue Theorem
lO.1. Winding Numbers and the Cauchy Residue Theorem
lO.2. Applications of the Residue Theorem
Exercises
11. Applications of The Residue Theorem to the Evaluation of Integrals and Sums
Introduction
11.1. Evaluation of Definite Integrals by Contour Integral Techniques
11.2. Application of Contour Integral Methods to Evaluation and Estimation of Sums
Exercises
12. Further Contour Integral Techniques
12.1. Shifting the Contour of Integration
12.2. An Entire Function Bounded in Every Direction
Exercises
13. Introduction to Conformal Mapping
13.1. Conformal Equivalence
13.2. Special Mappings
Exercises
14. The Riemann Mapping Theorem
14.1. Conformal Mapping and Hydrodynamics
14.2. The Riemann Mapping Theorem
Exercises
15. Maximum-Modulus Theorems for Unbounded Domains
15.1. A General Maximum-Modulus Theorem
15.2. The Phragmén-Lindelöf Theorem
Exercises
16. Harmonic Functions
16.1. Poisson Formulae and the Dirichlet Problem
16.2. Liouville Theorems for Re f; Zeroes of Entire Functions of Finite Order
Exercises
17. Different Forms of Analytic Functions
Introduction
17.1. Infinite Products
17.2. Analytic Functions Defined by Definite Integrals
Exercises
18. Analytic Continuation; The Gamma and Zeta Functions
Introduction
18.1. Power Series
18.2. The Gamma and Zeta Functions
Exercises
19. Applications to Other Areas of Mathematics
Introduction
19.1. A Partition Problem
19.2. An Infinite System of Equations
19.3. A Variation Problem
19.4. The Fourier Uniqueness Theorem
19.5. The Prime-Number Theorem
Exercises
Appendices
1. A Note on Simply Connected Regions
II. Circulation and Flux as Contour Integrals
III. Steady-State Temperatures; The Heat Equation
IV. Tchebychev Estimates
Answers
Bibliography
Index