---
date: 2022-04-11 23:58
modification date: Monday 11th April 2022 23:58:56
title: "self intersection"
aliases: [self intersection]
---

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

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- Tags: 
	- #todo/untagged
- Refs:
	- #todo/add-references
- Links:
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# self intersection

Negative curves can not be moved to another curve (rigidity) or any effective cycle.

![](attachments/Pasted%20image%2020220411235858.png)

![](attachments/Pasted%20image%2020221110213400.png)