---
date: 2022-04-04 09:41
modification date: Monday 4th April 2022 09:41:09
title: "intersection form"
aliases: [intersection form]

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


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- Tags 
	- #geomtop/4-manifolds 
- Refs:
	- #todo/add-references
- Links:
	- [Pontrayagin class](Unsorted/Pontrayagin%20class.md)
	- [Lefschetz duality](Lefschetz%20duality)

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# intersection form

As a [bordism](Unsorted/cobordism.md) invariant.
![](attachments/Pasted%20image%2020220404094115.png)