An algebraic ZIP proof of the classification | Algebraic Topology 19 | NJ Wildberger

In this lecture we sketch an algebraic version of Conway's ZIP proof of the classification of two-dimensional surfaces. One key idea is to replace the basic polygons in the standard proof with spheres with holes in them. We introduce an algebraic notation that allows us to manipulate (ZIP) edges together between holes on spheres.

This is the 19th lecture of this beginner's course in Algebraic Topology, given by N J Wildberger of the School of Mathematics and Statistics at UNSW.

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Here are the Insights into Mathematics Playlists:

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Here are the Wild Egg Maths Playlists (some available only to Members!)

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