4 flat 3-manifolds realized in hyperbolic 4-space.
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4-manifolds show every flat 3-manifold as cusp sections.
In this paper, we study multiply transitive actions of the group of isometries of a cusped finite-volume hyperbolic 3-manifold on the set of its cusps. In particular, we prove a conjecture of Vogeler that there is a largest for which such -transitive actions exist, and that for each , there is an upper…
Let be a cusped finite-volume hyperbolic three-manifold with isometry group . Then induces a -transitive action by permutation on the cusps of for some integer . Generically is trivial and , but does occur in special cases. We show examples with . An interesting questio…