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date: 2021-11-03 19:21
modification date: Wednesday 3rd November 2021 19:21:00
title: Whitehead torsion
aliases: [Whitehead torsion, Whitehead group]

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# Whitehead torsion

Definition and some motivations
![Pasted image 20211103192104.png](Pasted%20image%2020211103192104.png)

What it measures:
![Pasted image 20211103192315.png](Pasted%20image%2020211103192315.png)