Rank one Eisenstein cohomology of local systems on the moduli space of abelian varieties

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/155263We give a formula for the Eisenstein cohomology of local systems on the partial compactification of the moduli of principally polarized abelian varieties given by rank 1 degenerations. For genus 2 we give a formula for the full Eisenstein cohomology.17 pagesAlgebraic GeometryNumber Theory14J15; 11F75Rank one Eisenstein cohomology of local systems on the moduli space of abelian varietiestext