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OP-11433Status unassessedGeometry and topology

Uniform Bounds in Families

PDE methods in complex geometry · AIMPL workshop record

Editorial mapping of AIMPL list topic: PDE methods in complex geometry. http://aimpl.org/pdecomplexgeom/ Not an author-supplied MSC code.

Workshop record · status unassessedAs of 2026-09-10 source snapshot; not a current-status certificationSource & evidence ↓

Problem statement

Problem 5. Let XX be a connected component of the moduli space of Kahler-Einstein metrics on a compact complex manifold Y of general type, and let π:X→X\pi:\mathcal{X}\to X be the corresponding universal family. Then there exists N∈NN\in\mathbb{N} and a closed embedding ι:X↪X×PN\iota:\mathcal{X}\hookrightarrow X\times\mathbb{P}^{N} over XX using powers of the relative canonical bundle KX/XℓK_{\mathcal{X}/X}^{\ell} for sufficiently large ℓ∈N\ell\in\mathbb{N}. Let ωFS\omega_{FS} be the Fubini-Study metric on PN\mathbb{P}^{N}, so that we can write any Kahler-Einstein metric ωKE∈X\omega_{KE}\in X (corresponding to some z∈Xz\in X) as ωKE=1ℓιz∗ωFS+−1∂∂‾u\omega_{KE}=\frac{1}{\ell}\iota_{z}^{\ast}\omega_{FS}+\sqrt{-1}\partial\overline{\partial}u,where ιz:π−1(z)↪{z}×PN\iota_{z}:\pi^{-1}(z)\hookrightarrow\{z\}\times\mathbb{P}^{N} is the restriction of ι\iota, and u∈PSH(Y,1ℓιz∗ωFS)∩C∞(Y)u\in PSH(Y,\frac{1}{\ell}\iota_{z}^{\ast}\omega_{FS})\cap C^{\infty}(Y).

Do there exist constants C=C(X)C=C(X) and α=α(X)>0\alpha=\alpha(X)>0 such that VolωFS({u<−s})≤Ce−αs\text{Vol}_{\omega_{FS}}(\{u<-s\})\leq Ce^{-\alpha s} for all ωKE∈X\omega_{KE}\in X?

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References
  1. [1]PDE methods in complex geometry · Original question link
  2. [2]AIMPL source bibliography link
  3. [3]AIMPL text license · CC BY-SA 3.0 linkAIM Problem Lists (AIMPL), original contributors; CC BY-SA 3.0. Adaptation: structural TeX converted to Markdown, documented source macros expanded, and source bibliography links added. Mathematical wording retained. These adapted source texts remain under CC BY-SA 3.0.

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