Yang's refined minimal-degree conjecture for Kähler manifolds

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Let (Mn,g)(M^n,g) be a complete noncompact Kähler manifold with nonnegative bisectional curvature, and assume that the universal cover of MM does not split. For a point pp, let dmin⁡→(p)=(dmin⁡(1),…,dmin⁡(n))\overrightarrow{d_{\operatorname{min}}}(p)=(d_{\operatorname{min}}^{(1)},\ldots,d_{\operatorname{min}}^{(n)}) denote the refined minimal-degree vector defined using nn-tuples of global polynomial-growth holomorphic functions in OP(M,p)\mathcal{O}_P(M,p) that give local coordinates at pp, with the component growth rates arranged nondecreasingly. Let AVR⁡(M,g)\operatorname{AVR}(M,g) be the asymptotic volume ratio, Dmin⁡D_{\operatorname{min}} the minimal degree, and ASCD⁡(M,g)\operatorname{ASCD}(M,g) the average of scalar-curvature decay. Yang's refined minimal-degree conjecture. If MM has maximal volume growth, then dmin⁡→(p)\overrightarrow{d_{\operatorname{min}}}(p) is realized by an nn-tuple in OP(M,p)\mathcal{O}_P(M,p) and is independent of pp, and

AVR⁡(M,g)=∏i=1n1dmin⁡(i),\operatorname{AVR}(M,g)=\prod_{i=1}^n\frac{1}{d_{\operatorname{min}}^{(i)}}, Dmin⁡=∑i=1ndmin⁡(i)−n,D_{\operatorname{min}}=\sum_{i=1}^n d_{\operatorname{min}}^{(i)}-n,

and

ASCD⁡(M,g)=4nDmin⁡.\operatorname{ASCD}(M,g)=4nD_{\operatorname{min}}.

This is presented as a quantitative refinement of the relevant uniformization and volume-growth theorem, relating holomorphic-function growth to asymptotic volume and scalar-curvature decay. The supplied text gives no resolution of the conjecture.

References

Primary source

Yuang Shi, “Minimal Degrees, Volume Growth, and Curvature Decay on Complete Kähler Manifolds”, arXiv:2511.01263 (2026).

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