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Paper detail

Margulis numbers for Haken manifolds

For every closed hyperbolic Haken 3-manifold and, more generally, for any hyperbolic 3-manifold M which is homeomorphic to the interior of a Haken manifold, the number 0.286 is a Margulis number. If M has non-zero first Betti number, or if M is closed and contains a semi-fiber, then 0.292 is a Margulis number for M.

preprint2011arXivOpen access
Marc CullerPeter B. Shalen
math.GT
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Marc CullerPeter B. Shalen

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