Uniqueness conjecture for semi-flat cscK currents on minimal elliptic surfaces

Let Φ:XΣg\Phi:X\rightarrow\Sigma_g be a minimal elliptic surface, and let H(X,Φ)H(X,\Phi) be the group of pairs of automorphisms preserving Φ\Phi:

H(X,Φ)={(h,h)Aut(X)×Aut(Σg)Φh=hΦ}.H(X,\Phi)=\{(h',h)\in\operatorname{Aut}(X)\times\operatorname{Aut}(\Sigma_g)\mid \Phi\circ h'=h\circ\Phi\}.

A semi-flat cscK current has fiber volume 11 and scalar curvature 3-3. Uniqueness conjecture. There is a unique such current up to the action of H(X,Φ)H(X,\Phi): for any two semi-flat cscK currents ω1\omega_1 and ω2\omega_2, there exists (h,h)H(X,Φ)(h',h)\in H(X,\Phi) such that

hω1=ω2.h'_*\omega_1=\omega_2.

This is the uniformization proposal stated after two further questions in the source. It overlaps with the preceding existence-and-uniqueness conjecture, but is phrased there as a separate uniformization suggestion; the source does not report a resolution.

Sources & referencesView supporting material

Primary source

Zhenqu Wang and Zhenlei Zhang, “Semi-flat constant scalar curvature Kähler metric on elliptic surface”, arXiv:2509.08669 (2025).

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