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Introduction to number theory lecture 28. Products of groups

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Richard E Borcherds 53 tutorials here
Mathematics

This lecture is part of my Berkeley math 115 course “Introduction to number theory”
For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8

We define products of groups, and rephrase some earlier results in terms of these products.

The textbook is “An introduction to the theory of numbers” by Niven, Zuckerman, and Montgomery (5th edition).