Eisenstein series and the top degree cohomology of arithmetic subgroups of $S{L}_n/\mathbb{Q}$

Joachim Schwermer

The cohomology $H^{\ast }(\Gamma ,E)$ of a torsion-free arithmetic subgroup $\Gamma$ of the special linear $\mathbb{Q}$-group $\mathsf{G}=S{L}_n$ may be interpreted in terms of the automorphic sp…