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arXiv · 2008.10918

Normal surface singularities with an integral homology sphere link related to space monomial curves with a plane semigroup

Jorge Martín-Morales·Lena Vos
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Abstract

In this article, we consider an infinite family of normal surface singularities with an integral homology sphere link which is related to the family of space monomial curves with a plane semigroup. These monomial curves appear as the special fibers of equisingular families of curves whose generic fibers are a complex plane branch, and the related surface singularities appear in a proof of the monodromy conjecture for these curves. To investigate whether the link of a normal surface singularity is an integral homology sphere, one can use a characterization that depends on the determinant of the intersection matrix of a (partial) resolution. To study our family, we apply this characterization with a partial toric resolution of our singularities constructed as a sequence of weighted blow-ups.

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Jorge Martín-Morales, Lena Vos. 2020-08-25. Normal surface singularities with an integral homology sphere link related to space monomial curves with a plane semigroup. https://arxiv.org/abs/2008.10918

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