English

A link invariant from higher-dimensional Heegaard Floer homology

Symplectic Geometry 2023-09-26 v1 General Topology

Abstract

We define a higher-dimensional analogue of symplectic Khovanov homology. Consider the standard Lefschetz fibration p ⁣:WDCp\colon W\to D\subset\mathbb{C} of a 2n2n-dimensional Milnor fiber of the A2κ1A_{2\kappa-1} singularity. We represent a link by a κ\kappa-strand braid, which is expressed as an element hh of the symplectic mapping class group Symp(W,W)\mathrm{Symp}(W,\partial W). We then apply the higher-dimensional Heegaard Floer homology machinery to the pair (a,h(a))(\boldsymbol{a},h(\boldsymbol{a})), where a\boldsymbol{a} is a collection of κ\kappa unstable manifolds of WW which are Lagrangian spheres. We prove its invariance under arc slides and Markov stabilizations, which shows that it is a link invariant. This work constitutes part of the author's PhD thesis.

Keywords

Cite

@article{arxiv.2309.13241,
  title  = {A link invariant from higher-dimensional Heegaard Floer homology},
  author = {Tianyu Yuan},
  journal= {arXiv preprint arXiv:2309.13241},
  year   = {2023}
}