English

Khovanov-Lipshitz-Sarkar homotopy type for links in thickened higher genus surfaces

Geometric Topology 2021-08-12 v2

Abstract

We discuss links in thickened surfaces. We define the Khovanov-Lipshitz-Sarkar stable homotopy type and the Steenrod square for the homotopical Khovanov homology of links in thickened surfaces with genus>1>1. A surface means a closed oriented surface unless otherwise stated. Of course, a surface may or may not be the sphere. A thickened surface means a product manifold of a surface and the interval. A link in a thickened surface (respectively, a 3-manifold) means a submanifold of a thickened surface (respectively, a 3-manifold) which is diffeomorphic to a disjoint collection of circles. Our Khovanov-Lipshitz-Sarkar stable homotopy type and our Steenrod square of links in thickened surfaces with genus>1>1 are stronger than the homotopical Khovanov homology of links in thickened surfaces with genus>1>1. It is the first meaningful Khovanov-Lipshitz-Sarkar stable homotopy type of links in 3-manifolds other than the 3-sphere. We point out that our theory has a different feature in the torus case.

Keywords

Cite

@article{arxiv.2007.09241,
  title  = {Khovanov-Lipshitz-Sarkar homotopy type for links in thickened higher genus surfaces},
  author = {Louis H. Kauffman and Igor Mikhailovich Nikonov and Eiji Ogasa},
  journal= {arXiv preprint arXiv:2007.09241},
  year   = {2021}
}