... finite-dimensional exterior algebra and c(φS,λ)isaCliffordmultiplication operator on it. The operator 1 − F2λis 0 on the orthogonalcomplement of V in H, and on V it is a one-dimensional projection onto ... =Γwith the action byleft translations. Let c beapositive continuous cut-off function on Z. Thismeans, by definition, that the support of c has compact intersection with thesaturation of any compact ... isometrically either on a simply connected completeRiemannian manifold of nonpositive, bounded sectional curvature, or on aeuclidean building with uniformly bounded ramification numbers. All condi-“BOLIC”...