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arXiv 0904.0837math.GT
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同调3-球面中纤维Seifert链的相容切触结构

Compatible contact structures of fibered Seifert links in homology 3-spheres

Masaharu Ishikawa

摘要:

研究了同调3-球面中纤维化Seifert多重链的相容切触结构,特别给出了Seifert纤维化为正扭曲时切触结构为紧的一个充要条件.作为推论,我们确定了3-球面中纤维Seifert环的强拟正性。我们还研究了任意三维流形中沿链环的相容切触结构。

英文摘要:

We study compatible contact structures of fibered Seifert multilinks in homology 3-spheres and especially give a necessary and sufficient condition for the contact structure to be tight in the case where the Seifert fibration is positively twisted. As a corollary we determine the strongly quasipositivity of fibered Seifert links in the 3-sphere. We also study the compatible contact structures of cablings along links in any 3-manifolds.

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