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Let $\mathfrak{F}$ be the following set: \[ \mathfrak{F}=\{z\in\mathcal{H} : |z|\geq1 \text{ and } |\Re(z)|\leq1/2\}\cup\{\infty\}. \] Then $\mathfrak{F}$ is a fundamental domain for the action of $\Gamma$ on $\mathcal{H}$.

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  • Last edited by John Jones on 2022-07-20 18:03:48
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