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A Maass form is of weight $k$ if it is an eigenfunction of the weight $k$ Laplacian $$\Delta_k = y^2\left( \frac{\partial^2}{\partial x^2}+\frac{\partial^2}{\partial y^2}\right) - iky\frac{\partial}{\partial x}$$.

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• Review status: reviewed
• Last edited by Nathan Ryan on 2019-04-30 00:05:10
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