Families of Automorphic Forms / Edition 1

by Roelof W. Bruggeman

Overview

Automorphic forms on the upper half plane have been studied for a long time. Most attention has gone to the holomorphic automorphic forms, with numerous applications to number theory. Maass, [34], started a systematic study of real analytic automorphic forms. He extended Hecke's relation between automorphic forms and Dirichlet series to real analytic automorphic forms. The names Selberg and Roelcke are connected to the spectral theory of real analytic automorphic forms, see, e. g., [50], [51]. This culminates in the trace formula of Selberg, see, e. g., Hejhal, [21]. Automorphicformsarefunctionsontheupperhalfplanewithaspecialtra- formation behavior under a discontinuous group of non-euclidean motions in the upper half plane. One may ask how automorphic forms change if one perturbs this group of motions. This question is discussed by, e. g., Hejhal, [22], and Phillips and Sarnak, [46]. Hejhal also discusses the e?ect of variation of the multiplier s- tem (a function on the discontinuous group that occurs in the description of the transformation behavior of automorphic forms). In [5]-[7] I considered variation of automorphic forms for the full modular group under perturbation of the m- tiplier system. A method based on ideas of Colin de Verdì ere, [11], [12], gave the meromorphic continuation of Eisenstein and Poincar´ e series as functions of the eigenvalue and the multiplier system jointly. The present study arose from a plan to extend these results to much more general groups (discrete co?nite subgroups of SL (R)).

Product Details

ISBN-13:	9783034603355
Publisher:	Birkhäuser Basel
Publication date:	11/23/2009
Series:	Modern Birkhäuser Classics
Edition description:	1st ed. 1994. 2nd printing 2009
Pages:	318
Product dimensions:	6.69(w) x 9.61(h) x 0.36(d)

Table of Contents

Modular introduction.- Modular introduction.- General theory.- Automorphic forms on the universal covering group.- Discrete subgroups.- Automorphic forms.- Poincaré series.- Selfadjoint extension of the Casimir operator.- Families of automorphic forms.- Transformation and truncation.- Pseudo Casimir operator.- Meromorphic continuation of Poincaré series.- Poincaré families along vertical lines.- Singularities of Poincaré families.- Examples.- Automorphic forms for the modular group.- Automorphic forms for the theta group.- Automorphic forms for the commutator subgroup.

Editorial Reviews

From reviews:

"It is made abundantly clear that this viewpoint, of families of automorphic functions depending on varying eigenvalue and multiplier systems, is both deep and fruitful." - MathSciNet

From the Publisher