中文

拉格朗日子流形填充与复杂的勒让德平凡结

辛几何 2018-02-19 v2

摘要

标准接触 (2n1)(2n-1) 维空间中具有勒让德边界 Σ\Sigma 的精确拉格朗日子流形 LL 可沿 Σ\Sigma 与自身粘合。这给出了 LL 的二重流形到接触 (2n+1)(2n+1) 维空间中的勒让德嵌入 Λ(L,L)\Lambda(L,L)。我们证明 Λ(L,L)\Lambda(L,L) 的勒让德同痕类由形式数据决定:流形 LL 及其复化切丛的平凡化。特别地,若 LL 为圆盘,则 Λ(L,L)\Lambda(L,L) 为勒让德平凡结。

关键词

引用

@article{arxiv.1712.07849,
  title  = {Lagrangian fillings and complicated Legendrian unknots},
  author = {Sylvain Courte and Tobias Ekholm},
  journal= {arXiv preprint arXiv:1712.07849},
  year   = {2018}
}

备注

8 pages. An assumption on regularity of Lagrangian fillings was removed following a suggestion by Yang Huang. Version contains Emmy Murphy's proof of looseness of Legendrian spheres obtained by gluing two distinct disk fillings. (These spheres were originally claimed elsewhere by the second author to be non-loose.)