Siegfried Böcherer, Winfried Kohnen
Abstract
One can characterize Siegel cusp forms among Siegel modular forms by growth properties of their Fourier coefficients. We give a new proof, which works also for more general types of modular forms. Our main tool is to study the behavior of a modular form for $Z=X+iY$ when $Y\longrightarrow 0$ .
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One can characterize Siegel cusp forms among Siegel modular forms by growth properties of their Fourier coefficients. We give a new proof, which works also for more general types of modular forms. Our main tool is to study the behavior of a modular form for $Z=X+iY$ when $Y\longrightarrow 0$ .
Key concepts: Siegel modular form, Mathematics, Cusp (singularity), Cusp form, Fourier series, Modular design, Modular form, Pure mathematics