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Course11110116060 lectures

An introduction to Point-Set-Topology Part - II

Prof. Anant R Shastri · IIT Bombay

Start with lecture 1 At NPTEL

About

This course begins with the assumption that the audience has attended the part-I. We cover all important advanced topics such as various notions of compactness in metric spaces, Ascoli's theorem, paracompactness, compactifications, Urysohn's Metrization theorem, Stone-Weiertrass theorem, totally disconnectedness, etc. Checking whether any of these topological properties in product invariant occupies a considerable amount of our time. A brief introduction to Topological Dimension Theory, discussion of function-space topologies and the Ordinal topology as a rich source of counter examples are the added features. Finally the course ends with a brief introduction to topology of manifolds in which we discuss the 1-dimensional case completely and outline the 2-dimensional case. The content of this course will be useful for any body who wishes to study deeper aspects of analysis or topology or in applying topological tools anywhere else in Mathematics or Physics, etc. It is certainly useful in understanding the two courses that I have offered on Algebraic Topology on NPTEL portal.

Intended audience: Students from various streams which include some modern mathematics such as B. Sc., M. Sc., Students, Ph. D. , B. Tech. and M. Tech. who have seriously attended PST-I or have acquired the basic knowledge the content offers from elsewhere, will be able to benefit from this course.

Prerequisites: Students are supposed to have attended the part-I of this course from NPTEL or acquired the basic knowledge the content the part-I offers from elsewhere.INTENDED AUDIENCE: Students from various streams which include some modern mathematics such as B. Sc., M. Sc., Students, Ph. D. , B. Tech. and M. Tech. who have seriously attended PST-I or have acquired the basic knowledge the content offers from elsewhere, will be able to benefit from this course.

Lectures

Week 1 : Chapter I - Introduction

  1. Lecture 1 : Preliminaries from Banach spaces YouTube
  2. Lecture 2 : Differentiation on Banach spaces YouTube
  3. Lecture 3 : Preliminaries from one-variable real analysis YouTube
  4. Lecture 4 : Implicit and Inverse function theorems YouTube
  5. Lecture 6 : Compact Hausdorff spaces YouTube

Week 2 : Chapter II - Compactness and Separation Axioms

  1. Lecture 7 : Local compactness YouTube
  2. Lecture 8 : Local Compactness-continued YouTube
  3. Lecture 9 : The retraction functor k(X) YouTube
  4. Lecture 10 : Compactly generated spaces YouTube
  5. Lecture 11 : Paracompactness YouTube

Week 3 : Chapter III - Paracompactness and Partition of Unity

  1. Lecture 12 : Partition of Unity YouTube
  2. Lecture 13 : Paracompactness continued YouTube
  3. Lecture 14 : Paracompactness continued. YouTube
  4. Lecture 15 : Various Notions of Compactness YouTube
  5. Lecture 16 : Total Boundedness YouTube

Week 4 : Chapter IV - Other Notions of Compactness

  1. Lecture 17 : Arzel`a- Ascoli Theorem YouTube
  2. Lecture 18 : Generalities on Compactification YouTube
  3. Lecture 19 : Alexandroff’s compactifiction YouTube
  4. Lecture 20 : Proper maps YouTube
  5. Lecture 21 : Stone-Cech compactification YouTube

Week 5 : Chapter V - Compactifications

  1. Lecture 22 : Stone-Weierstrass’ Theorems YouTube
  2. Lecture 23 : Real Stone-Weierstrass Theorem YouTube
  3. Lecture 24 : Complex and extended Stone-Weierstrass theorem YouTube
  4. Lecture 26 : Urysohn’s Metrization theorem YouTube

Week 6 : Chapter VI - Metrization

  1. Lecture 27 : Nagata Smyrnov Metrization theorem YouTube
  2. Lecture 28 : Nets YouTube
  3. Lecture 29 : Cofinal families subnets YouTube
  4. Lecture 30 : Basics of Filters YouTube
  5. Lecture 31 : Convergence Properties of Filters YouTube

Week 7 : Chapter VII - Nets and Filters

  1. Lecture 32 : Ultrafilters and Tychonoff’s theorem YouTube
  2. Lecture 34 : Wallman compactification YouTube
  3. Lecture 33 : Ultraclosed filters YouTube
  4. Lecture 35 : Wallman compactification-continued YouTube
  5. Lecture 36 : Global Separation of Sets YouTube

Week 8 : Chapter VIII - Global Separation Axioms

  1. Lecture 37 : More examples YouTube
  2. Lecture 38 : Knaster-Kuratowski Example YouTube
  3. Lecture 39 : Separation of Sets-continued YouTube
  4. Lecture 40 : Definition of dimension and exampels YouTube
  5. Lecture 41 : Dimensions of subspaces and Unions YouTube

Week 9 : Chapter IX - Wallman-Hurewicz Topological dimension theory

  1. Lecture 42 : Sum theorem for higher dimensions YouTube
  2. Lecture 43 : Analytic Proof of Brouwer’s Fixed Point Theorem YouTube
  3. Lecture 44 : Local Separation to Global Separation YouTube
  4. Lecture 45 : Partially Ordered sets YouTube
  5. Lecture 46 : Principle of Transfinite Induction YouTube

Week 10 : Chapter X - Ordinals

  1. Lecture 47 : Order topology YouTube
  2. Lecture 48 : Ordinals YouTube
  3. Lecture 49 : Ordinal Topology Continued YouTube
  4. Lecture 50 : The Long Line YouTube
  5. Lecture 51 : Motivation and definition YouTube
  6. Lecture 52 : The exponential Correspondence YouTube

Week 11 : Chapter XI - Compact Open Topology

  1. Lecture 53 : An Application to Quotient Maps YouTube
  2. Lecture 54 : Groups of Homeomoprhisms YouTube
  3. Lecture 55 : Definition and Exampels of Manifolds YouTube
  4. Lecture 56 : Manifolds with Boundary YouTube
  5. Lecture 57 : Homogeneity YouTube

Week 12 : Chapter XII - Manifolds

  1. Lecture 58 : Homogeneity continued YouTube
  2. Lecture 59 : Classification of 1-dim. manifolds YouTube
  3. Lecture 60 : Classification of 1-dim. Manifolds-cont. YouTube
  4. Lecture 61 : Surfaces YouTube
  5. Lecture 62 : Connected sum YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Bombay
Department
Mathematics
Teacher
Prof. Anant R Shastri
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.
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