On the involutive Heegaard Floer homology of negative semi-definite plumbed 3-manifolds with b1=1
Abstract
In MR1957829, Ozsv\'ath and Szab\'o use Heegaard Floer homology to define numerical invariants d1/2 and d-1/2 for 3-manifolds Y with H1(Y;Z) Z. We define involutive Heegaard Floer theoretic versions of these invariants analogous to the involutive d invariants d and d defined for rational homology spheres by Hendricks and Manolescu in MR3649355 . We prove their invariance under spin integer homology cobordism and use them to establish spin filling constraints and 0-surgery obstructions analogous to results by Ozsv\'ath and Szab\'o for their Heegaard Floer counterparts d1/2 and d-1/2. We then apply calculation techniques of Dai and Manolescu developed in MR4021102 and Rustamov in Rustamov to compute the involutive Heegaard Floer homology of some negative semi-definite plumbed 3-manifolds with b1 =1. By combining these calculations with the 0-surgery obstructions, we are able to produce an infinite family of small Seifert fibered spaces with weight 1 fundamental group and first homology Z which cannot be obtained by 0-surgery on a knot in S3, extending a result of Hedden, Kim, Mark, and Park in MR4029676.
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