On filings of ∂(V×D)\partial(V\times \mathbb{D})

preprint2022arXivOpen access

Abstract

We show that any symplectically aspherical/Calabi-Yau filling of Y:=∂(V×D)Y:=\partial(V\times \mathbb{D}) has vanishing symplectic cohomology for any Liouville domain VV. In particular, we make no topological requirement on the filling and c1(V)c_1(V) can be nonzero. Moreover, we show that for any symplectically aspherical/Calabi-Yau filling WW of YY, the interior W˚\mathring{W} is diffeomorphic to the interior of V×DV\times \mathbb{D} if π1(Y)π_1(Y) is abelian and dim⁡V≥4\dim V\ge 4. And WW is diffeomorphic to V×DV\times \mathbb{D} if moreover the Whitehead group of π1(Y)π_1(Y) is trivial.

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