Right-angled Coxeter polytopes, hyperbolic 6-manifolds, and a problem of Siegel
arXiv:1009.3231
Abstract
By gluing together the sides of eight copies of an all-right angled hyperbolic 6-dimensional polytope, two orientable hyperbolic 6-manifolds with Euler characteristic -1 are constructed. They are the first known examples of orientable hyperbolic 6-manifolds having the smallest possible volume.
32 pages