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 42 of 43Unit 14: Zalcman\'s Lemma, Montel\'s Normality Criterion and Theorems of Picard, Royden and Schottky

Royden\'s Theorem on Normality Based On Growth Of Derivatives

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

  1. Properties of the Image of an Analytic Function: Introduction to the Picard Theorems Video
  2. Recalling Singularities of Analytic Functions: Non-isolated and Isolated Removable, Pole and Essential Singularities Video
  3. Recalling Riemann's Theorem on Removable Singularities Video
  4. Casorati-Weierstrass Theorem; Dealing with the Point at Infinity -- Riemann Sphere and Riemann Stereographic Projection Video
  5. Neighborhood of Infinity, Limit at Infinity and Infinity as an Isolated Singularity Video
  6. Studying Infinity: Formulating Epsilon-Delta Definitions for Infinite Limits and Limits at Infinity Video
  7. When is a function analytic at infinity ? Video
  8. Laurent Expansion at Infinity and Riemann\'s Removable Singularities Theorem for the Point at Infinity Video
  9. The Generalized Liouville Theorem: Little Brother of Little Picard and Analogue of Casorati-Weierstrass; Failure of Cauchy\'s Theorem at Infinity Video
  10. Morera\'s Theorem at Infinity, Infinity as a Pole and Behaviour at Infinity of Rational and Meromorphic Functions Video
  11. Residue at Infinity and Introduction to the Residue Theorem for the Extended Complex Plane: Residue Theorem for the Point at Infinity Video
  12. Proofs of Two Avatars of the Residue Theorem for the Extended Complex Plane and Applications of the Residue at Infinity Video
  13. Infinity as an Essential Singularity and Transcendental Entire Functions Video
  14. Meromorphic Functions on the Extended Complex Plane are Precisely Quotients of Polynomials Video
  15. The Ubiquity of Meromorphic Functions: The Nerves of the Geometric Network Bridging Algebra, Analysis and Topology Video
  16. Continuity of Meromorphic Functions at Poles and Topologies of Spaces of Functions Video
  17. Why Normal Convergence, but Not Globally Uniform Convergence, is the Inevitable in Complex Analysis Video
  18. Measuring Distances to Infinity, the Function Infinity and Normal Convergence of Holomorphic Functions in the Spherical Metric Video
  19. The Invariance Under Inversion of the Spherical Metric on the Extended Complex Plane Video
  20. Introduction to Hurwitz\'s Theorem for Normal Convergence of Holomorphic Functions in the Spherical Metric Video
  21. Completion of Proof of Hurwitz\'s Theorem for Normal Limits of Analytic Functions in the Spherical Metric Video
  22. Hurwitz\'s Theorem for Normal Limits of Meromorphic Functions in the Spherical Metric Video
  23. What could the Derivative of a Meromorphic Function Relative to the Spherical Metric Possibly Be ? Video
  24. Defining the Spherical Derivative of a Meromorphic Function Video
  25. Well-definedness of the Spherical Derivative of a Meromorphic Function at a Pole and Inversion-invariance of the Spherical Derivative Video
  26. Topological Preliminaries: Translating Compactness into Boundedness Video
  27. Introduction to the Arzela-Ascoli Theorem: Passing from abstract Compactness to verifiable Equicontinuity Video
  28. Proof of the Arzela-Ascoli Theorem for Functions: Abstract Compactness Implies Equicontinuity Video
  29. Proof of the Arzela-Ascoli Theorem for Functions: Equicontinuity Implies Compactness Video
  30. Introduction to the Montel Theorem - the Holomorphic Avatar of the Arzela-Ascoli Theorem & Why you get Equicontinuity for Free Video
  31. Completion of Proof of the Montel Theorem - the Holomorphic Avatar of the Arzela-Ascoli Theorem Video
  32. Introduction to Marty\'s Theorem - the Meromorphic Avatar of the Montel & Arzela-Ascoli Theorems Video
  33. 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 Video
  34. 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 Video
  35. Normal Convergence at Infinity and Hurwitz\'s Theorems for Normal Limits of Analytic and Meromorphic Functions at Infinity Video
  36. Normal Sequential Compactness, Normal Uniform Boundedness and Montel\'s & Marty\'s Theorems at Infinity Video
  37. Local Analysis of Normality and the Zooming Process - Motivation for Zalcman\'s Lemma Video
  38. Characterizing Normality at a Point by the Zooming Process and the Motivation for Zalcman\'s Lemma Video
  39. Local Analysis of Normality and the Zooming Process - Motivation for Zalcman\'s Lemma Video
  40. Montel\'s Deep Theorem: The Fundamental Criterion for Normality or Fundamental Normality Test based on Omission of Values Video
  41. Proofs of the Great and Little Picard Theorems Video
  42. Royden\'s Theorem on Normality Based On Growth Of Derivatives Video
  43. Schottky\'s Theorem: Uniform Boundedness from a Point to a Neighbourhood & Problem Solving Session Video