The Floer-theoretic identification conjecture for nearby Lagrangian torsion

Let LTS4kL\subset T^*S^{4k} be a Lagrangian homotopy sphere. Suppose that Floer-theoretic nearby Lagrangian torsion defines a coset νFL(L)R/λkZ\nu^{\mathrm{FL}}(L)\in\mathbf{R}/\lambda_k\mathbf{Z}, and let ν(L)\nu(L) denote the nearby Lagrangian torsion defined in the source.

Floer-theoretic identification conjecture. The Floer-theoretic coset is the same as the nearby Lagrangian torsion:

νFL(L)=ν(L).\nu^{\mathrm{FL}}(L)=\nu(L).

This identification would relate the proposed Floer-theoretic construction to the existing nearby Lagrangian torsion and is presented by the source as an unresolved conjectural equality.

Sources & referencesView supporting material

Primary source

Daniel Alvarez Gavela, Kiyoshi Igusa and Michael Sullivan, “Legendrian and Lagrangian higher torsion”, arXiv:2603.28007 (2026).

Additional references

2 papers in this index state this conjecture (2024–2026). The statement above is taken from the most recent of them; the others are arXiv:2405.14850.

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