The characteristic-zero comparison conjecture for symplectic annular Khovanov homology

Let LL be an annular link, let kZk\in\mathbb Z be its winding grading, and let F\mathbb F be a field of characteristic zero. Denote by AKhsympi(L;k;F)\operatorname{AKh}_{symp}^i(L;k;\mathbb F) the symplectic annular Khovanov homology in absolute homological grading ii, and by AKhj,q(L;k;F)\operatorname{AKh}^{j,q}(L;k;\mathbb F) the combinatorial annular Khovanov homology in homological grading jj, quantum grading qq, and winding grading kk. The characteristic-zero comparison conjecture. There is an isomorphism

AKhsympi(L;k;F)jq=iAKhj,q(L;k;F).\operatorname{AKh}_{symp}^i(L;k;\mathbb F)\simeq\bigoplus_{j-q=i}\operatorname{AKh}^{j,q}(L;k;\mathbb F).

If AKhsymp(L)\operatorname{AKh}_{symp}(L) is equipped with a relative quantum equivariant grading from a non-commutative vector field, this isomorphism may be upgraded to an isomorphism of relatively trigraded groups. The claim is presented as an expected relationship, analogous to the non-annular comparison of Abouzaid and Smith, and the stronger trigraded refinement depends on the additional equivariant grading.

Sources & referencesView supporting material

Primary source

Kristen Hendricks, Cheuk Yu Mak and Sriram Raghunath, “Symplectic annular Khovanov homology and fixed point localizations”, arXiv:2408.06453 (2026).

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