Geometric construction of homology classes in Riemannian manifolds covered by products of hyperbolic planes

Pascal Zschumme

We study the homology of Riemannian manifolds of finite volume that are covered by an $r$-fold product $({\mathbb{H}}^2{)}^r={\mathbb{H}}^2\times \dots \times {\mathbb{H}}^2$ of hyperb…