---
date: 2021-11-03 18:54
modification date: Wednesday 3rd November 2021 18:54:06
title: s-cobordism
aliases: [s-cobordism]

---


Last modified date: <%+ tp.file.last_modified_date() %>

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- Tags: 
	- #todo/untagged
- Refs:
	- #todo/add-references
- Links:
	- #todo/create-links 

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# s-cobordism

Why do we need anything other than [h-cobordism](h-cobordism.md)?
![Pasted image 20211103185724.png](Pasted%20image%2020211103185724.png)


Definition:
![Pasted image 20211103185411.png](Pasted%20image%2020211103185411.png)