Central Limit theorem for toric \kahler manifolds

preprint2018arXivOpen access

Abstract

Associated to the Bergman kernels of a polarized toric \kahler manifold (M,ω,L,h)(M, ω, L, h) are sequences of measures {μkz}k=1∞\{μ_k^z\}_{k=1}^{\infty} parametrized by the points z∈Mz \in M. For each zz in the open orbit, we prove a central limit theorem for μkzμ_k^z. The center of mass of μkzμ_k^z is the image of zz under the moment map; after re-centering at 00 and dilating by k\sqrt{k}, the re-normalized measure tends to a centered Gaussian whose variance is the Hessian of the \kahler potential at zz. We further give a remainder estimate of Berry-Esseen type. The sequence {μkz}\{μ_k^z\} is generally not a sequence of convolution powers and the proofs only involve \kahler analysis.

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