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希尔伯特模形式

数学中,希尔伯特模形式是一类自守形式,对应于全实域 及相应的群 。这可以视作模形式的一种多变元推广。当 时,我们回到模形式的定义。

定义

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对于 次全实域 为其中的代数整数环、 为相应的实嵌入映射。由此得到嵌入映射

为上半平面,透过上述嵌入,(指 行列式为正的元素)作用于 上。

,定义自守因子之值为

权为 之希尔伯特模形式是指 上满足下述函数方程全纯函数

此定义与模形式的差异在于:当 时,不需要另加增长条件,这是 Koecher 定理的一个推论。

文献

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  • Paul B. Garrett, Holomorphic Hilbert Modular Forms. Wadsworth & Brooks/Cole Advanced Books & Software, Pacific Grove, CA, 1990. ISBN 0-534-10344-8
  • Eberhard Freitag, Hilbert Modular Forms. Springer-Verlag. ISBN 0-387-50586-5
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希尔伯特模形式
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