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20222026
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math.CV2026

A new strong rigidity phenomenon for the Bergman metric

Peter Ebenfelt, John N. Treuer, Ming Xiao

We establish a new local-to-global rigidity phenomenon for the Bergman metric. Namely, under natural geometric hypotheses, a local conformal identification of Bergman metrics deter…

math.CV2025

Bergman kernels over polarized Kähler manifolds, Bergman logarithmic flatness, and a question of Lu-Tian

Peter Ebenfelt, Ming Xiao, Hang Xu

Let be a complete Kähler manifold, and let be a positive line bundle inducing a Kähler metric on . We study two Bergman kernels in this setting: the Bergm…

math.CV2025

Domains with Bergman metrics of constant curvature and Bergman-negligible subsets

Peter Ebenfelt, John N. Treuer, Ming Xiao

Let be a bounded domain in . Suppose the holomorphic sectional curvature of its Bergman metric equals a negative constant . We show that is biholomorphic t…

math.CV2024

Local algebraicity and localization of the Bergman kernel on Stein spaces with finite type boundaries

Peter Ebenfelt, Soumya Ganguly, Ming Xiao

On a two dimensional Stein space with isolated, normal singularities, smooth finite type boundary, and locally algebraic Bergman kernel, we establish an estimate on the type of the…

math.CV2022

On the analytic and geometric aspects of obstruction flatness

Peter Ebenfelt, Ming Xiao, Hang Xu

In this paper, we investigate analytic and geometric properties of obstruction flatness of strongly pseudoconvex CR hypersurfaces of dimension . Our first two results concern…