arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.04454math.NTmath.SP
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具有非幺正扭的向量值自守函数的Fourier展开

Fourier expansions of vector-valued automorphic functions with non-unitary twists

Ksenia Fedosova, Anke Pohl, Julie Rowlett

摘要:

我们提供的向量值特征函数的双曲拉普拉斯算子是扭转周期的horocycle方向的傅立叶展开。扭曲可以由有限维向量空间的任何自同态给出;不对可逆性或酉性做任何假设。这种特征函数的例子包括富克斯群的向量值扭曲自守形式。我们进一步提供了一个详细的描述的傅里叶系数,并明确确定他们的每一个组成部分,这密切依赖于扭曲自同态的特征值和约旦块的大小。此外,我们确定了傅里叶系数的增长性质。

英文摘要:

We provide Fourier expansions of vector-valued eigenfunctions of the hyperbolic Laplacian that are twist-periodic in a horocycle direction. The twist may be given by any endomorphism of a finite-dimensional vector space; no assumptions on invertibility or unitarity are made. Examples of such eigenfunctions include vector-valued twisted automorphic forms of Fuchsian groups. We further provide a detailed description of the Fourier coefficients and explicitly identify each of their constituents, which intimately depend on the eigenvalues of the twisting endomorphism and the size of its Jordan blocks. In addition, we determine the growth properties of the Fourier coefficients.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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