A Course in Complex Analysis 1st Edition by Saeed Zakeri ISBN 978-0691218502 0691218502
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ISBN 10: 0691218502
ISBN 13: 978-0691218502
Author: Saeed Zakeri
A comprehensive graduate-level textbook that takes a fresh approach to complex analysis
A Course in Complex Analysis explores a central branch of mathematical analysis, with broad applications in mathematics and other fields such as physics and engineering. Ideally designed for a year-long graduate course on complex analysis and based on nearly twenty years of classroom lectures, this modern and comprehensive textbook is equally suited for independent study or as a reference for more experienced scholars.
Saeed Zakeri guides the reader through a journey that highlights the topological and geometric themes of complex analysis and provides a solid foundation for more advanced studies, particularly in Riemann surfaces, conformal geometry, and dynamics. He presents all the main topics of classical theory in great depth and blends them seamlessly with many elegant developments that are not commonly found in textbooks at this level. They include the dynamics of Möbius transformations, Schlicht functions and distortion theorems, boundary behavior of conformal and harmonic maps, analytic arcs and the general reflection principle, Hausdorff dimension and holomorphic removability, a multifaceted approach to the theorems of Picard and Montel, Zalcman’s rescaling theorem, conformal metrics and Ahlfors’s generalization of the Schwarz lemma, holomorphic branched coverings, geometry of the modular group, and the uniformization theorem for spherical domains.
Written with exceptional clarity and insightful style, A Course in Complex Analysis is accessible to beginning graduate students and advanced undergraduates with some background knowledge of analysis and topology. Zakeri includes more than 350 problems, with problem sets at the end of each chapter, along with numerous carefully selected examples. This well-organized and richly illustrated book is peppered throughout with marginal notes of historical and expository value.
Presenting a wealth of material in a single volume, A Course in Complex Analysis will be a valuable resource for students and working mathematicians.
Table of contents:
Chapter 1. Rudiments of complex analysis.
1.1 What is a holomorphic function?
1.2 Complex analytic functions..
1.3 Complex integration
1.4 Cauchy’s theory in a disk.
1.5 Mapping properties of holomorphic functions.
Problems.
Chapter 2.
Topological aspects of Cauchy’s theory
2.1 Homotopy of curves.
2.2 Covering properties of the exponential map
2.3 The winding number.
2.4 Cycles and homology
2.5 The homology version of Cauchy’s theorem..
Problems..
Chapter 3.
Meromorphic functions.
3.1 Isolated singularities
3.2 The Riemann sphere
3.3 Laurent series.
3.4 Residues
3.5 The argument principle.
Problems
Chapter 4.
Möbius maps and the Schwarz lemma
4.1 The Möbius group..
4.2 Three automorphism groups
4.3 Dynamics of Möbius maps
4.4 Conformal metrics
4.5 The hyperbolic metric
Problems
Chapter 5. Convergence and normality
5.1 Compact convergence..
5.2 Convergence in the space of holomorphic functions
5.3 Normal families of meromorphic functions
Problems
Chapter 6. Conformal maps
6.1 The Riemann mapping theorem
6.2 Schlicht functions
6.3 Boundary behavior of Riemann maps
Problems
Chapter 7. Harmonic functions
7.1 Elementary properties of harmonic functions..
7.2 Poisson’s formula in a disk
7.3 Some applications of Poisson’s formula
7.4 Boundary behavior of harmonic functions
7.5 Harmonic measure on the circle
Problems
Chapter 8. Zeros of holomorphic functions
8.1 Infinite products.
8.2 Weierstrass’s theory of elementary factors
8.3 Jensen’s formula and its applications
8.4 Entire functions of finite order
Problems
Chapter 9.
Interpolation and approximation theorems
9.1 Mittag-Leffler’s theorem
9.2 Elliptic functions
9.3 Rational approximation
9.4 Finitely connected domains
Problems
Chapter 10. The holomorphic extension problem…
10.1 Regular and singular points
10.2 Analytic continuation
10.3 Analytic arcs and reflections.
10.4 Two removability results
Problems.
Chapter 11. Ranges of holomorphic functions
11.1 Bloch’s theorem..
11.2 Picard’s theorems
11.3 A rescaling approach to Picard and Montel
11.4 Ahlfors’s generalization of the Schwarz-Pick lemma.
Problems
Chapter 12. Holomorphic (branched) covering maps
12.1 Covering spaces
12.2 Holomorphic coverings and inverse branches.
12.3 Proper maps and branched coverings.
12.4 The Riemann-Hurwitz formula Problems.
Chapter 13. Uniformization of spherical domains
13.1 The modular group and thrice punctured spheres.
13.2 The uniformization theorem
13.3 Hyperbolic domains.
13.4 Conformal geometry of topological annuli..
Problems.
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