The spectral transition conjecture for the extended Harper model
Spectral transition conjecture. For λ∈R1∩Rs\lambda\in\mathcal{R}_1\cap\mathcal{R}_sλ∈R1∩Rs, the operator Hλ,α,θEHMH^{\mathrm{EHM}}_{\lambda,\alpha,\theta}Hλ,α,θEHM has purely singular continuous spectrum if
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