The Floer-theoretic identification conjecture for nearby Lagrangian torsion

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Let L⊂T∗S4kL\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.

References

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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