Lecture 5

Introduction to Algebraic Topology

Siddhartha Gadgil

Department of Mathematics

Indian Institute of Science

• These lectures are slide-shows with videos alternating with quizzes.
• Please press the "F" key to enter fullscreen mode.
• Both videos (from YouTube) and quizzes (from Google Forms) may take time to load.
• After a video is over or submitting a quiz, please advance to the next slide.
• You may like to make videos fullscreen, but please escape to advance to the next slide.

5.1: Homotopy lifting

Quiz 5.1

5.2: Proof of Fundamental Group of the Circle (main steps)

Quiz 5.2

5.3: Proof of Fundamental Group of the Circle (final steps)

Next: Lecture 6

Course: MA 232 (October 2020)