The 1-2-3 of Modular Forms: Lectures at a Summer School in Nordfjordeid, Norway

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Springer Science & Business Media, 10 de febr. 2008 - 266 pàgines

This book grew out of three series of lectures given at the summer school on "Modular Forms and their Applications" at the Sophus Lie Conference Center in Nordfjordeid in June 2004. The first series treats the classical one-variable theory of elliptic modular forms. The second series presents the theory of Hilbert modular forms in two variables and Hilbert modular surfaces. The third series gives an introduction to Siegel modular forms and discusses a conjecture by Harder. It also contains Harder's original manuscript with the conjecture.

Each part treats a number of beautiful applications.

 

Continguts

Elliptic Modular Forms and Their Applications
1
Eisenstein Series and the Discriminant Function
12
Theta Series
24
Hecke Eigenforms and Lseries
37
Modular Forms and Differential Operators
48
References and Further Reading
99
Hilbert Modular Surfaces
106
The Example Q 5
123
The Satake Isomorphism
215
Relations in the Hecke Algebra
218
Satake Parameters
219
Lfunctions
220
Liftings
221
The Moduli Space of Principally Polarized Abelian Varieties
226
Counting Points on Curves of Genus 2
230
The Ring of VectorValued Siegel Modular Forms for Genus 2
232

The Orthogonal Group O2n
127
Additive and Multiplicative Liftings
146
References
176
The Siegel Modular Group
183
The Fourier Expansion of a Modular Form
189
Theta Series
195
Moduli of Principally Polarized Complex Abelian Varieties
201
Compactifications
204
Roots and Representations
207
Vector Bundles Defined by Representations
209
Holomorphic Differential Forms
210
Cusp Forms and Geometry
212
The Classical Hecke Algebra
213
Harders Conjecture
235
Evidence for Harders Conjecture
237
References
241
A Congruence Between a Siegel and an Elliptic Modular Form Günter Harder 247
246
The Hecke Algebra and a Congruence
250
The Special Values of the Lfunction
252
Cohomology with Coefficients
253
Why the Denominator?
257
Arithmetic Implications
258
References
259
Appendix
260
Index
263
Copyright

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