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Modified Shiffman–Zelditch Conjecture (Part a): Finiteness of Calabi and Mabuchi Volumes under Compact Automorphism Group

Determine whether, for a polarized manifold (M, L) with compact automorphism group Aut(M, L), there exists an integer k0 such that for all k ≥ k0 the Calabi volume μ_Ca(B_{M,L}^k) and the Mabuchi volume μ_Ma(B_{M,L}^k) are finite.

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Background

Motivated by counterexamples demonstrating that μCa(B{M,L}k) and μMa(B{M,L}k) can be infinite when Aut(M,L) is non-compact, the authors propose a modified problem restricting to polarized manifolds with compact automorphism groups.

This reformulation asks whether finiteness of the Calabi and Mabuchi volumes might hold uniformly for sufficiently large k in the compact-automorphism setting, thereby salvaging a useful measure-theoretic framework on Bergman spaces.

References

Problem 1.1 (Modified Shiffman-Zelditch’s conjecture). Let (M,L) be a polarized manifold, and ω 0 c 1L) be a K¨ ahler metric on M. Assume that Aut(M,L) is compact.

(a). Is there an integer 0 ∈ N such that for any k ≥ k 0 the Calabi volume µ Ca (BM,L k) and the Mabuchi volume µ Ma (BM,L k) are finite?

On the $L^2$ volume of Bergman spaces (2404.12840 - Zhou, 19 Apr 2024) in Problem 1.1, Section 1 (Introduction)