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.
| Translated title of the contribution | On the cohomology of local systems on the moduli spaces of curves of genus 2 and of Abelian surfaces, I |
|---|---|
| Original language | French |
| Pages (from-to) | 381-384 |
| Number of pages | 4 |
| Journal | Comptes Rendus Mathematique |
| Volume | 338 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Mar 2004 |
| Externally published | Yes |