Learn · NPTEL

Course11110608443 lectures

Advanced Complex Analysis - Part 1:Zeros of Analytic Functions,Analytic continuation, Monodromy, Hyperbolic Geometry and the Reimann Mapping Theorem

Dr. T.E. Venkata Balaji · IIT Madras

Start with lecture 1 At NPTEL

Lectures

UNIT 1: Theorems of Rouche and Hurwitz

  1. Fundamental Theorems Connected with Zeros of Analytic Functions Video
  2. The Argument (Counting) Principle, Rouche's Theorem and The Fundamental Theorem of Algebra Video
  3. Morera's Theorem and Normal Limits of Analytic Functions Video
  4. Hurwitz's Theorem and Normal Limits of Univalent Functions Video

UNIT 2: Open Mapping Theorem

  1. Local Constancy of Multiplicities of Assumed Values Video
  2. The Open Mapping Theorem Video

UNIT 3: Inverse Function Theorem

  1. Introduction to the Inverse Function Theorem Video
  2. Completion of the Proof of the Inverse Function Theorem: The Integral Inversion Formula for the Inverse Function Video
  3. Univalent Analytic Functions have never-zero Derivatives and are Analytic Isomorphisms Video

UNIT 4: Implicit Function Theorem

  1. Introduction to the Implicit Function Theorem Video
  2. Proof of the Implicit Function Theorem: Topological Preliminaries Video
  3. Proof of the Implicit Function Theorem: The Integral Formula for & Analyticity of the Explicit Function Video

UNIT 5: Riemann Surfaces for Multi-Valued Functions

  1. Doing Complex Analysis on a Real Surface: The Idea of a Riemann Surface Video
  2. F(z,w)=0 is naturally a Riemann Surface Video
  3. Constructing the Riemann Surface for the Complex Logarithm Video
  4. Constructing the Riemann Surface for the m-th root function Video
  5. The Riemann Surface for the functional inverse of an analytic mapping at a critical point Video
  6. The Algebraic nature of the functional inverses of an analytic mapping at a critical point Video

UNIT 6: Analytic Continuation

  1. The Idea of a Direct Analytic Continuation or an Analytic Extension Video
  2. General or Indirect Analytic Continuation and the Lipschitz Nature of the Radius of Convergence Video
  3. Analytic Continuation Along Paths via Power Series Part A Video
  4. Analytic Continuation Along Paths via Power Series Part B Video
  5. Continuity of Coefficients occurring in Families of Power Series defining Analytic Continuations along Paths Video

UNIT 7: Monodromy

  1. Analytic Continuability along Paths: Dependence on the Initial Function and on the Path - First Version of the Monodromy Theorem Video
  2. Maximal Domains of Direct and Indirect Analytic Continuation: SecondVersion of the Monodromy Theorem Video
  3. Deducing the Second (Simply Connected) Version of the Monodromy Theorem from the First (Homotopy) Version Video
  4. Existence and Uniqueness of Analytic Continuations on Nearby Paths Video
  5. Proof of the First (Homotopy) Version of the Monodromy Theorem Video
  6. Proof of the Algebraic Nature of Analytic Branches of the Functional Inverse of an Analytic Function at a Critical Point Video

Unit 8: Harmonic Functions, Maximum Principles, Schwarz Lemma and Uniqueness of Riemann Mappings

  1. The Mean-Value Property, Harmonic Functions and the Maximum Principle Video
  2. Proofs of Maximum Principles and Introduction to Schwarz Lemma Video
  3. Proof of Schwarz Lemma and Uniqueness of Riemann Mappings Video
  4. Reducing Existence of Riemann Mappings to Hyperbolic Geometry of Sub-domains of the Unit Disc Video

Unit 9: Pick Lemma and Hyperbolic Geometry on the Unit Disc

  1. Differential or Infinitesimal Schwarzs Lemma, Picks Lemma, Hyperbolic Arclengths, Metric and Geodesics on the Unit Disc Video
  2. Differential or Infinitesimal Schwarzs Lemma, Picks Lemma, Hyperbolic Arclengths, Metric and Geodesics on the Unit Disc. Video
  3. Hyperbolic Geodesics for the Hyperbolic Metric on the Unit Disc Video
  4. Schwarz-Pick Lemma for the Hyperbolic Metric on the Unit Disc Video

Unit 10: Theorems of Arzela-Ascoli and Montel

  1. Arzela-Ascoli Theorem: Under Uniform Boundedness, Equicontinuity and Uniform Sequential Compactness are Equivalent Video
  2. Completion of the Proof of the Arzela-Ascoli Theorem and Introduction to Montels Theorem Video
  3. The Proof of Montels Theorem Video

Unit 11: Existence of a Riemann Mapping

  1. The Candidate for a Riemann Mapping Video
  2. Completion of Proof of The Riemann Mapping Theorem Video
  3. Completion of Proof of The Riemann Mapping Theorem. Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Madras
Department
Mathematics
Teacher
Dr. T.E. Venkata Balaji
Level
Undergraduate
Language
English
Subjects
Mathematics
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
Who can watch
NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed