Virtual positive Betti number conjecture for 3-manifolds

Let MM be an orientable, irreducible closed 33-manifold with infinite fundamental group. Virtual positive Betti number conjecture. Some finite cover of MM has positive first Betti number. This is a virtual homological largeness question for closed 33-manifolds; the source provides no resolution status.

Sources & referencesView supporting material

Primary source

Tim D. Cochran and Joseph D. Masters, “The Growth Rate of the First Betti Number in Abelian Covers of 3-Manifolds”, arXiv:math/0508294 (2005).

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