Author: 3Blue1Brown

An unsolved conjecture, and a clever topological solution to a weaker version of the question.

Brought to you by you: http://3b1b.co/topology-thanks

Home page: https://www.3blue1brown.com/

This video is based on a proof from H. Vaughan, 1977. To learn more, take a look at this survey:

https://pure.mpg.de/rest/items/item_3120610/component/file_3120611/content

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3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted about new videos, subscribe, and click the bell to receive notifications (if you’re into that).

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