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arXiv 0901.0854math.SG
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辛4-流形中的不可分离切触超曲面

On Non-Separating Contact Hypersurfaces in Symplectic 4-Manifolds

Peter Albers, Barney Bramham, Chris Wendl

摘要:

我们表明,某些类的接触3-流形不允许非分离接触型嵌入到任何封闭的辛4-流形,例如,这是所有接触流形的情况下,(部分)平面或有Giroux挠。后者意味着具有Giroux挠的流形不允许接触型嵌入到任何闭辛4-流形中。类似地,有辛4-流形,可以允许光滑嵌入的非分离超曲面,但不是接触型的:我们观察到,这是所有辛直纹曲面的情况。

英文摘要:

We show that certain classes of contact 3-manifolds do not admit non-separating contact type embeddings into any closed symplectic 4-manifolds, e.g. this is the case for all contact manifolds that are (partially) planar or have Giroux torsion. The latter implies that manifolds with Giroux torsion do not admit contact type embeddings into any closed symplectic 4-manifolds. Similarly, there are symplectic 4-manifolds that can admit smoothly embedded non-separating hypersurfaces, but not of contact type: we observe that this is the case for all symplectic ruled surfaces.

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