English

Split link detection for sl(P) link homology in characteristic P

Geometric Topology 2022-02-24 v2

Abstract

If PP is a prime number, we show that reduced sl(P)\mathfrak{sl}(P) link homology with coefficients in Z/P\mathbf{Z}/P detects split links. The argument uses Dowlin's spectral sequence and sutured Floer homology with twisted coefficients. When P=2P = 2, we recover Lipshitz-Sarkar's split link detection result for Khovanov homology with Z/2\mathbf{Z}/2 coefficients.

Keywords

Cite

@article{arxiv.2112.09110,
  title  = {Split link detection for sl(P) link homology in characteristic P},
  author = {Joshua Wang},
  journal= {arXiv preprint arXiv:2112.09110},
  year   = {2022}
}

Comments

17 pages, 3 figures, added comments on systems of orientations in section 2

R2 v1 2026-06-24T08:20:56.560Z