The ramified even-dimensional arithmetic transfer conjecture

Assume that F/F0F/F_0 is ramified and that n2n\geq2 is even. Let K0K_0^{{{{{{{{\flat}}}}}}}} be the stabilizer of an almost π\pi-modular lattice and let K0+K_0^+ and K0K_0^- be the stabilizers of the two π\pi-modular lattices in the relevant hermitian space. Let Int(g)\operatorname{Int}(g) be the associated intersection number. Even ramified arithmetic transfer conjecture. (a) For every fCc(Sn(F0))f'\in C_c^\infty(S_n(F_0)) transferring to (1K0K0++1K0K0,0)(\mathbf{1}_{K_0^{{{{{{{{\flat}}}}}}}} K_0^+}+\mathbf{1}_{K_0^{{{{{{{{\flat}}}}}}}} K_0^-},0), there exists fcorrf'_{\mathrm{corr}} such that

2ω(γ)∂Orb(γ,f)=Int(g)logq+ω(γ)Orb(γ,fcorr)2\omega(\gamma)\operatorname{\partial Orb}(\gamma,f')=-\operatorname{Int}(g)\cdot\log q+\omega(\gamma)\operatorname{Orb}(\gamma,f'_{\mathrm{corr}})

for every matching regular semisimple pair. (b) There exists such an ff' for which

2ω(γ)∂Orb(γ,f)=Int(g)logq2\omega(\gamma)\operatorname{\partial Orb}(\gamma,f')=-\operatorname{Int}(g)\cdot\log q

for every matching pair. This is the even-dimensional ramified arithmetic transfer statement formulated in the source.

Sources & referencesView supporting material

Primary source

Michael Rapoport, Brian Smithling and Wei Zhang, “Regular formal moduli spaces and arithmetic transfer conjectures”, arXiv:1604.02419 (2017).

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