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The Spaces of Hilbert Cusp Forms for Totally Real Cubic Fields and Representations of SL_2(F_q)

机译:完全实立方场的希尔伯特尖锐形式的空间和SL_2(F_q)的表示

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Let S_(2m)(Γ(p)) be the space of Hilbert modular cusp forms for the principal congruence subgroup with level p of SL_2(O_K) (here O_K is the ring of integers of K, and p is a prime ideal of O_K). Then we have the action of SL_2(F_q) on S_(2m)(Γ(p)), where q = N_P. When q is a power of an odd prime, for each SL_2(F_q) we have two irreducible characters which have conjugate values mutually. In the case where K is the field of rationals, M. Eichler gives a formula for the difference of multiplicites of these characters in the trace of the representation of SL_2(F_q) on S_(2m)(Γ(P)). In the case where K is a real quadratic field. H. Saito gives a formula analogous to that of Eichler for the difference. The purpose of this paper is to give a formula analogous to that of Eichler in the case where K is a totally real cubic field.
机译:令S_(2m)(Γ(p))为SL_2(O_K)的水平p的主同余子群的希尔伯特模块化尖点形式的空间(其中O_K是K的整数环,而p是K的素理想)好)。然后我们对S_(2m)(Γ(p))具有SL_2(F_q)的作用,其中q = N_P。当q是奇质数的幂时,对于每个SL_2(F_q),我们都有两个不可约的字符,它们互有共轭值。在K是有理领域的情况下,M。Eichler给出了在S_(2m)(Γ(P))上SL_2(F_q)的表示轨迹中这些字符的多重性差异的公式。在K是实二次场的情况下。 H. Saito给出了一个类似于Eichler的差异公式。本文的目的是在K是完全实立方场的情况下给出类似于Eichler的公式。

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