The arithmetic transfer conjecture for odd type (r,0)(r,0)

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Let rr be odd with 0≤r≤n0\leq r\leq n, and let N~n[r]\widetilde{\mathcal{N}}^{[r]}_n be the formal scheme defined by the Cartesian construction above, with arithmetic intersection number

⟨N~n[r],gN~n[r]⟩Nn[r]×Nn+1.\left\langle {\widetilde{\mathcal{N}}^{[r]}_{n}},g{\widetilde{\mathcal{N}}^{[r]}_{n}}\right\rangle_{\mathcal{N}^{[r]}_{n}\times\mathcal{N}_{n+1}}.

Arithmetic transfer conjecture for odd type (r,0)(r,0). There exists φ′∈Cc∞(G′)\varphi'\in C_c^\infty(G') transferring to (cr2,1Kn[r]×Kn+1,0)(c_r^2\\,\mathbf{1}_{K_n^{[r]}\times K_{n+1}},0) such that, for every matched pair γ∈G′(F0)rs\gamma\in G'(F_0)_{\mathrm{rs}} and g∈GW1(F0)rsg\in G_{W_1}(F_0)_{\mathrm{rs}},

⟨N~n[r],gN~n[r]⟩Nn[r]×Nn+1log⁡q=−12∂Orb⁡(γ,φ′).\left\langle {\widetilde{\mathcal{N}}^{[r]}_{n}},g{\widetilde{\mathcal{N}}^{[r]}_{n}}\right\rangle_{\mathcal{N}^{[r]}_{n}\times\mathcal{N}_{n+1}}\log q=-\frac12\operatorname{\partial Orb}(\gamma,\varphi').

Moreover, every such transfer admits a correction function φcorr′\varphi'_{\mathrm{corr}} giving the corresponding identity with the additional term −Orb⁡(γ,φcorr′)-\operatorname{Orb}(\gamma,\varphi'_{\mathrm{corr}}). This is open beyond the cases discussed in the paper; the density conjecture is stated to imply the correction-function formulation from the first part.

References

Primary source

Chao Li, Michael Rapoport and Wei Zhang, “Quasi-canonical AFL and Arithmetic Transfer conjectures at parahoric levels”, arXiv:2404.02214 (2026).

Additional references

2 papers in this index state this conjecture (2015–2024). The statement above is taken from the most recent of them; the others are arXiv:1503.06520.

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