Learn · Advanced Complex Analysis - Part 2: Compactness of Meromorphic Functions in the Spherical Metric, Spherical Derivative, Normality, Theorems of Marty-Zalcman-Montel-Picard-Royden-Schottky
Lecture 12 of 43Unit 4: Residue at Infinity and Residue Theorem for the Extended Complex Plane
Proofs of Two Avatars of the Residue Theorem for the Extended Complex Plane and Applications of the Residue at Infinity
Dr. T.E. Venkata Balaji · IIT Madras
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- Advanced Complex Analysis - Part 2: Compactness of Meromorphic Functions in the Spherical Metric, Spherical Derivative, Normality, Theorems of Marty-Zalcman-Montel-Picard-Royden-Schottky, IIT Madras (at NPTEL)
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All the lectures
- Properties of the Image of an Analytic Function: Introduction to the Picard Theorems
- Recalling Singularities of Analytic Functions: Non-isolated and Isolated Removable, Pole and Essential Singularities
- Recalling Riemann's Theorem on Removable Singularities
- Casorati-Weierstrass Theorem; Dealing with the Point at Infinity -- Riemann Sphere and Riemann Stereographic Projection
- Neighborhood of Infinity, Limit at Infinity and Infinity as an Isolated Singularity
- Studying Infinity: Formulating Epsilon-Delta Definitions for Infinite Limits and Limits at Infinity
- When is a function analytic at infinity ?
- Laurent Expansion at Infinity and Riemann\'s Removable Singularities Theorem for the Point at Infinity
- The Generalized Liouville Theorem: Little Brother of Little Picard and Analogue of Casorati-Weierstrass; Failure of Cauchy\'s Theorem at Infinity
- Morera\'s Theorem at Infinity, Infinity as a Pole and Behaviour at Infinity of Rational and Meromorphic Functions
- Residue at Infinity and Introduction to the Residue Theorem for the Extended Complex Plane: Residue Theorem for the Point at Infinity
- Proofs of Two Avatars of the Residue Theorem for the Extended Complex Plane and Applications of the Residue at Infinity
- Infinity as an Essential Singularity and Transcendental Entire Functions
- Meromorphic Functions on the Extended Complex Plane are Precisely Quotients of Polynomials
- The Ubiquity of Meromorphic Functions: The Nerves of the Geometric Network Bridging Algebra, Analysis and Topology
- Continuity of Meromorphic Functions at Poles and Topologies of Spaces of Functions
- Why Normal Convergence, but Not Globally Uniform Convergence, is the Inevitable in Complex Analysis
- Measuring Distances to Infinity, the Function Infinity and Normal Convergence of Holomorphic Functions in the Spherical Metric
- The Invariance Under Inversion of the Spherical Metric on the Extended Complex Plane
- Introduction to Hurwitz\'s Theorem for Normal Convergence of Holomorphic Functions in the Spherical Metric
- Completion of Proof of Hurwitz\'s Theorem for Normal Limits of Analytic Functions in the Spherical Metric
- Hurwitz\'s Theorem for Normal Limits of Meromorphic Functions in the Spherical Metric
- What could the Derivative of a Meromorphic Function Relative to the Spherical Metric Possibly Be ?
- Defining the Spherical Derivative of a Meromorphic Function
- Well-definedness of the Spherical Derivative of a Meromorphic Function at a Pole and Inversion-invariance of the Spherical Derivative
- Topological Preliminaries: Translating Compactness into Boundedness
- Introduction to the Arzela-Ascoli Theorem: Passing from abstract Compactness to verifiable Equicontinuity
- Proof of the Arzela-Ascoli Theorem for Functions: Abstract Compactness Implies Equicontinuity
- Proof of the Arzela-Ascoli Theorem for Functions: Equicontinuity Implies Compactness
- Introduction to the Montel Theorem - the Holomorphic Avatar of the Arzela-Ascoli Theorem & Why you get Equicontinuity for Free
- Completion of Proof of the Montel Theorem - the Holomorphic Avatar of the Arzela-Ascoli Theorem
- Introduction to Marty\'s Theorem - the Meromorphic Avatar of the Montel & Arzela-Ascoli Theorems
- Proof of one direction of Marty\'s Theorem - the Meromorphic Avatar of the Montel & Arzela-Ascoli Theorems - Normal Uniform Boundedness of Spherical Derivatives Implies Normal Sequential Compactness
- Proof of the other direction of Marty\'s Theorem - the Meromorphic Avatar of the Montel & Arzela-Ascoli Theorems - Normal Sequential Compactness Implies Normal Uniform Boundedness of Spherical Derivatives
- Normal Convergence at Infinity and Hurwitz\'s Theorems for Normal Limits of Analytic and Meromorphic Functions at Infinity
- Normal Sequential Compactness, Normal Uniform Boundedness and Montel\'s & Marty\'s Theorems at Infinity
- Local Analysis of Normality and the Zooming Process - Motivation for Zalcman\'s Lemma
- Characterizing Normality at a Point by the Zooming Process and the Motivation for Zalcman\'s Lemma
- Local Analysis of Normality and the Zooming Process - Motivation for Zalcman\'s Lemma
- Montel\'s Deep Theorem: The Fundamental Criterion for Normality or Fundamental Normality Test based on Omission of Values
- Proofs of the Great and Little Picard Theorems
- Royden\'s Theorem on Normality Based On Growth Of Derivatives
- Schottky\'s Theorem: Uniform Boundedness from a Point to a Neighbourhood & Problem Solving Session