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Preface and Acknowledgments | ||
1 | First Concepts | 1 |
1.1 | Fundamentals of the complex field | 1 |
1.2 | Holomorphic functions | 3 |
1.3 | Some important examples | 5 |
1.4 | The Cauchy-Riemann equations | 10 |
1.5 | Some elementary differential equations | 14 |
1.6 | Conformality | 16 |
1.7 | Power series | 18 |
2 | Integration Along a Contour | 21 |
2.1 | Curves and their trajectories | 21 |
2.2 | Change of Parameter and a Fundamental Inequality | 24 |
2.3 | Some important examples of contour integration | 27 |
2.4 | The Cauchy theorem in simply connected domains | 29 |
2.5 | Some immediate consequences of Cauchy's theorem for a simply connected domain | 39 |
3 | The Main Consequences of Cauchy's theorem | 43 |
3.1 | The Cauchy theorem in multiply connected domains and the pre-residue theorem | 43 |
3.2 | The Cauchy integral formula and its consequences | 45 |
3.3 | Analyticity, Taylor's theorem and the identity theorem | 53 |
3.4 | The area formula and some consequences | 61 |
3.5 | Application to spaces of square integrable holomorphic functions | 64 |
3.6 | Spaces of holomorphic functions and Montel's theorem | 67 |
3.7 | The maximum modulus theorem and Schwarz' lemma | 70 |
4 | Singularities | 75 |
4.1 | Classification of isolated singularities, the theorems of Riemann and Casorati-Weierstrass | 75 |
4.2 | The principle of the argument | 80 |
4.3 | Rouche's theorem and its consequences | 86 |
4.4 | The study of a transcendental equation | 91 |
4.5 | Laurent expansion | 94 |
4.6 | The calculation of residues at an isolated singularity, the residue theorem | 99 |
4.7 | Application to the calculation of real integrals | 103 |
4.8 | A more general removable singularities theorem and the Schwarz reflection principle | 108 |
5 | Conformal Mappings | 113 |
5.1 | Linear fractional transformations, equivalence of the unit disk and the upper half plane | 113 |
5.2 | Automorphism groups of the disk, upper half plane and entire plane | 114 |
5.3 | Annuli | 120 |
5.4 | The Riemann mapping theorem for planar domains | 123 |
6 | Applications of Complex Analysis to Lie Theory | 131 |
6.1 | Applications of the identity theorem: Complete reducibility of representations according to Hermann Weyl and the functional equation for the exponential map of a real Lie group | 131 |
6.2 | Application of residues: The surjectivity of the exponential map for U(p,q) | 134 |
6.3 | Application of Liouville's theorem and the maximum modulus theorem: The Zariski density of cofinite volume subgroups of complex Lie groups | 138 |
6.4 | Applications of the identity theorem to differential topology and Lie groups | 140 |
Bibliography | 143 | |
Index | 145 |
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