Abstract
In this paper, we collect various structural results to determine when an integral homology 3-sphere bounds an acyclic smooth 4-manifold, and when this can be upgraded to a Stein manifold. In a different direction, we study whether a smooth embedding of connected sums of lens spaces in can be upgraded to a Stein embedding, and we have determined that this never happens.
Citation
John B. Etnyre. Bülent Tosun. "Homology Spheres Bounding Acyclic Smooth Manifolds and Symplectic Fillings." Michigan Math. J. 73 (4) 719 - 734, August 2023. https://doi.org/10.1307/mmj/20206003
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