The chain-level glN\mathfrak{gl}_N link invariant functoriality conjecture

Let Links(R3)\mathbf{Links}_\infty(\mathbb{R}^3) be the (,1)(\infty,1)-category of links in R3\mathbb{R}^3, link cobordisms in R3×I\mathbb{R}^3 \times I, isotopies, and higher isotopies. Let Chb(Z-gpmod)\mathrm{Ch}^b(\mathbb{Z}\text{-}\operatorname{gpmod}) be the (,1)(\infty,1)-category of bounded chain complexes, chain maps, homotopies, and higher homotopies. Write CKhRN\operatorname{CKhR}_N for the chain-level glN\mathfrak{gl}_N link invariant from the cited construction.

Chain-level glN\mathfrak{gl}_N functoriality conjecture. The chain-level glN\mathfrak{gl}_N link invariant arises as the truncation of an E3\mathbb{E}_3-monoidal functor

CKhRN ⁣:Links(R3)Chb(Z-gpmod).\operatorname{CKhR}_N \colon \mathbf{Links}_\infty(\mathbb{R}^3) \longrightarrow \mathrm{Ch}^b(\mathbb{Z}\text{-}\operatorname{gpmod}).

This would promote the usual chain-level link invariant to homotopy-coherent functoriality, including coherence for isotopies and higher isotopies. The parser supplies no evidence that the statement has been proved or disproved, so its status remains open.

Sources & referencesView supporting material

Primary source

Paul Wedrich, “From Link Homology to Topological Quantum Field Theories”, arXiv:2509.08478 (2026).

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