Automorphic Forms and L-Functions for the Group GL(n,R) ( Cambridge Studies in Advanced Mathematics )

Publication series :Cambridge Studies in Advanced Mathematics

Author: Dorian Goldfeld  

Publisher: Cambridge University Press‎

Publication year: 2006

E-ISBN: 9780511217609

P-ISBN(Paperback): 9780521837712

Subject: O156 Number Theory

Keyword: 数论

Language: ENG

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Automorphic Forms and L-Functions for the Group GL(n,R)

Description

L-functions associated to automorphic forms encode all classical number theoretic information. They are akin to elementary particles in physics. This book provides an entirely self-contained introduction to the theory of L-functions in a style accessible to graduate students with a basic knowledge of classical analysis, complex variable theory, and algebra. Also within the volume are many new results not yet found in the literature. The exposition provides complete detailed proofs of results in an easy-to-read format using many examples and without the need to know and remember many complex definitions. The main themes of the book are first worked out for GL(2,R) and GL(3,R), and then for the general case of GL(n,R). In an appendix to the book, a set of Mathematica functions is presented, designed to allow the reader to explore the theory from a computational point of view.

Chapter

2 Invariant differential operators

2.1 Lie algebras

2.2 Universal enveloping algebra of gl(n, R)

2.3 The center of the universal enveloping algebra of gl(n, R)

2.4 Eigenfunctions of invariant differential operators

3 Automorphic forms and L–functions for SL(2, Z)

3.1 Eisenstein series

3.2 Hyperbolic Fourier expansion of Eisenstein series

3.3 Maass forms

3.4 Whittaker expansions and multiplicity one for GL(2, R)

3.5 Fourier–Whittaker expansions on GL(2, R)

3.6 Ramanujan–Petersson conjecture

3.7 Selberg eigenvalue conjecture

3.8 Finite dimensionality of the eigenspaces

3.9 Even and odd Maass forms

3.10 Hecke operators

3.11 Hermite and Smith normal forms

3.12 Hecke operators for…

3.13 L–functions associated to Maass forms

3.14 L-functions associated to Eisenstein series

3.15 Converse theorems for SL(2, Z)

3.16 The Selberg spectral decomposition

4 Existence of Maass forms

4.1 The infinitude of odd Maass forms for SL(2, Z)

4.2 Integral operators

4.3 The endomorphism .

4.4 How to interpret: an explicit operator with purely cuspidal image

4.5 There exist infinitely many even cusp forms for SL(2, Z)

4.6 A weak Weyl law

4.7 Interpretation via wave equation and the role of finite propagation speed

4.8 Interpretation via wave equation: higher rank case

5 Maass forms and Whittaker functions for SL(n, Z)

5.1 Maass forms

5.2 Whittaker functions associated to Maass forms

5.3 Fourier expansions on SL(n, Z)\h

5.4 Whittaker functions for SL(n, R)

5.5 Jacquet’s Whittaker function

5.6 The exterior power of a vector space

5.7 Construction of the I function using wedge products

5.8 Convergence of Jacquet’s Whittaker function

5.9 Functional equations of Jacquet’s Whittaker function

5.10 Degenerate Whittaker functions

6 Automorphic forms and L-functions for SL(3, Z)

6.1 Whittaker functions and multiplicity one for SL(3, Z)

6.2 Maass forms for SL(3, Z)

6.3 The dual and symmetric Maass forms

6.4 Hecke operators for SL(3, Z)

6.5 The Godement–Jacquet L-function

6.6 Bump’s double Dirichlet series

7 The Gelbart–Jacquet lift

7.1 Converse theorem for SL(3, Z)

7.2 Rankin–Selberg convolution for GL(2)

7.3 Statement and proof of the Gelbart–Jacquet lift

7.4 Rankin–Selberg convolution for GL(3)

8 Bounds for L-functions and Siegel zeros

8.1 The Selberg class

8.2 Convexity bounds for the Selberg class

8.3 Approximate functional equations

8.4 Siegel zeros in the Selberg class

8.5 Siegel’s theorem

8.6 The Siegel zero lemma

8.7 Non-existence of Siegel zeros for Gelbart–Jacquet lifts

8.8 Non-existence of Siegel zeros on GL(n)

9 The Godement–Jacquet L-function

9.1 Maass forms for SL(n, Z)

9.2 The dual and symmetric Maass forms

9.3 Hecke operators for SL(n, Z)

9.4 The Godement–Jacquet L-function

10 Langlands Eisenstein series

10.1 Parabolic subgroups

10.2 Langlands decomposition of parabolic subgroups

10.3 Bruhat decomposition

10.4 Minimal, maximal, and general parabolic Eisenstein series

10.5 Eisenstein series twisted by Maass forms

10.6 Fourier expansion of minimal parabolic Eisenstein series

10.7 Meromorphic continuation and functional equation of maximal parabolic Eisenstein series

10.8 The L-function associated to a minimal parabolic Eisenstein series

10.9 Fourier coefficients of Eisenstein series twisted by Maass forms

10.10 The constant term

10.11 The constant term of SL(3, Z) Eisenstein series twisted by SL(2, Z)-Maass forms

10.12 An application of the theory of Eisenstein series to the non-vanishing of L-functions on the line…

10.13 Langlands spectral decomposition for SL(3, Z)\h

11 Poincaré series and Kloosterman sums

11.1 Poincaré series for SL(n, Z)

11.2 Kloosterman sums

11.3 Plücker coordinates and the explicit evaluation of Kloosterman sums

11.4 Properties of Kloosterman sums

11.5 Fourier expansion of Poincaré series

11.6 Kuznetsov’s trace formula for SL(n, Z)

Concluding Remarks

12 Rankin–Selberg convolutions

12.1 The GL(n) × GL(n) convolution

12.2 The GL(n) × GL(n + 1) convolution

12.3 The GL(n) × GL(n´) convolution with n < n´

12.4 Generalized Ramanujan conjecture

12.5 The Luo–Rudnick–Sarnak bound for the generalized Ramanujan conjecture

12.6 Strong multiplicity one theorem

13 Langlands conjectures

13.1 Artin L-functions

13.2 Langlands functoriality

List of symbols

Appendix The GL(n)pack Manual

A.1 Introduction

A.1.1 Installation

A.1.2 About this manual

A.1.3 Assistance for users new to computers or Mathematica

A.1.4 Mathematica functions

A.1.5 The data type CRE (Canonical Rational Expression)

A.1.6 The algorithms in this package

A.1.7 Acknowledgements

A.2 Functions for GL(n)pack

A.3 Function descriptions and examples

References

Index

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