منابع مشابه
On Automorphic Functions
Let r c PSL(2, JR.) be a discrete subgroup with quotient r\H offinite volume but not compact. The spectrum of the Laplacian on L 2 auto-morphic functions is unstable under perturbations; however, it becomes muchmore manageable when the scattering frequencies are adjoined (with multiplic-ity equal to the order of the pole of the determinant of the scattering matrixat these po...
متن کاملLectures on automorphic L-functions
PREFACE This article follows the format of five lectures that we gave on automorphic Lfunctions. The lectures were intended to be a brief introduction for number theorists to some of the main ideas in the subject. Three of the lectures concerned the general properties of automorphic L-functions, with particular reference to questions of spectral decomposition. We have grouped these together as ...
متن کاملEstimates of Automorphic Functions
We present a new method to estimate trilinear period for automorphic representations of SL2(R). The method is based on the uniqueness principle in representation theory. We show how to separate the exponentially decaying factor in the triple period from the essential automorphic factor which behaves polynomially. We also describe a general method which gives an estimate on the average of the au...
متن کاملScattering Theory for Automorphic Functions
This paper is an expository account of our 1976 monograph [6] on Scattering theory for automorphic functions. Several improvements have been incorporated: a more direct proof of the meromorphic character of the Eisenstein series, an explicit formula for the translation representations and a simpler derivation of the spectral representations. Our hyperbolic approach to the Selberg trace formula ...
متن کاملAutomorphic hyperfunctions and period functions
We write x = Re z and y = Im z for z ∈ H, and use the Whittaker function W·,·( · ), see, e.g., [12], 1.7. One can express W0,· in terms of a modified Bessel function: W0,μ(y) = √ y/πKμ(y/2). These Maass forms occur as eigenfunctions in the spectral decomposition of the Laplacian in L ( Γmod\H, dxdy y2 ) , with Γmod := PSL2(Z). The eigenvalue is s (1− s). For any given s the space of such Maass ...
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ژورنال
عنوان ژورنال: MATHEMATICA SCANDINAVICA
سال: 1981
ISSN: 1903-1807,0025-5521
DOI: 10.7146/math.scand.a-11932