Rank gradients of infinite cyclic covers of 3-manifolds
classification
🧮 math.GT
keywords
classgradientrankzeroboundarycomponentscoverscyclic
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Given a 3-manifold M with no spherical boundary components, and a primitive class \phi in H^1(M;Z), we show that the following are equivalent: (1) \phi is a fibered class, (2) the rank gradient of (M,\phi) is zero, (3) the Heegaard gradient of (M,\phi) is zero.
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