Filtering the Heegaard Floer contact invariant
Filtering the Heegaard Floer contact invariant
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DOI:
10.2140/gt.2023.27.2181
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发表时间:
2016-03
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影响因子:
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通讯作者:
Çağatay Kutluhan;G. Matić;Jeremy Van Horn-Morris;Andy Wand
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文献类型:
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作者:
Çağatay Kutluhan;G. Matić;Jeremy Van Horn-Morris;Andy Wand
We define an invariant of contact structures in dimension three from Heegaard Floer homology. This invariant takes values in the set $\mathbb{Z}_{\geq0}\cup\{\infty\}$. It is zero for overtwisted contact structures, $\infty$ for Stein fillable contact structures, non-decreasing under Legendrian surgery, and computable from any supporting open book decomposition. As an application, we obstruct Stein fillability on contact 3-manifolds with non-vanishing Ozsvath-Szabo contact class.