Dowlin's sl(n) to knot Floer homology spectral sequence conjecture

Let LL be a link in S3S^3 and let nn be a positive integer. Write Hn(L)\overline{H}_n(L) and Hn(L)H_n(L) for reduced and unreduced sl(n)\mathfrak{sl}(n) homology, and coverlineHFKn(L)coverline{\operatorname{HFK}}'_n(L) and HFKn(L)\operatorname{HFK}'_n(L) for the corresponding grading-shifted knot Floer theories. The theories are graded by 1nZ\frac{1}{n}\mathbb{Z}. Dowlin's conjecture. There exist spectral sequences whose pages are graded by 1nZ\frac{1}{n}\mathbb{Z}, whose differentials have degree +1+1, and whose pages are the 1nZ\frac{1}{n}\mathbb{Z}-graded homology of the preceding page, with

  • E2E_2 page Hn(L)\overline{H}_n(L) and EE_{\infty} page coverlineHFKn(L)coverline{\operatorname{HFK}}'_n(L);
  • E2E_2 page Hn(L)H_n(L) and EE_{\infty} page HFKn(L)\operatorname{HFK}'_n(L),

as 1nZ\frac{1}{n}\mathbb{Z}-graded vector spaces. These spectral sequences would relate reduced and unreduced sl(n)\mathfrak{sl}(n) homology to the corresponding knot Floer theories for links. The conjecture is stated as a grading-refined version of Dowlin's proposed spectral sequences; no resolution is supplied here.

Sources & referencesView supporting material

Primary source

Larry Gu and Andrew Manion, “Evaluations of link polynomials and recent constructions in Heegaard Floer theory”, arXiv:2101.05789 (2021).

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