The **projective special linear group** $\text{PSL}_2\mathbb{R}$ is defined as the quotient $\text{PSL}_2(\mathbb{R})=\text{SL}_2(\mathbb{R})/\{\pm I\}$.

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**Knowl status:**

- Review status: beta
- Last edited by Andreea Mocanu on 2016-03-24 12:23:13

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