Abstract
We consider the cohomology of local systems on the moduli space of
curves of genus 2 and the moduli space of abelian surfaces. We give an
explicit formula for the Eisenstein cohomology and a conjectural formula
for the endoscopic contribution. We show how counting curves over finite
fields provides us with detailed information about Siegel modular forms.
Original language | English |
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Journal | Comptes Rendus Mathematique |
Publication status | Published - 2004 |
Keywords
- Mathematics - Algebraic Geometry
- Mathematics - Number Theory
- 11F46
- 11G18
- 14G35
- 14H10