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arXiv · 2109.01282

Bergman-Calabi diastasis and K\"ahler metric of constant holomorphic sectional curvature

Robert Xin Dong·Bun Wong
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Abstract

We prove that for a bounded domain in $\mathbb C^n$ with the Bergman metric of constant holomorphic sectional curvature being biholomorphic to a ball is equivalent to the hyperconvexity or the exhaustiveness of the Bergman-Calabi diastasis. By finding its connection with the Bergman representative coordinate, we give explicit formulas of the Bergman-Calabi diastasis and show that it has bounded gradient. In particular, we prove that any bounded domain whose Bergman metric has constant holomorphic sectional curvature is Lu Qi-Keng. We also extend a theorem of Lu towards the incomplete situation and characterize pseudoconvex domains that are biholomorphic to a ball possibly less a relatively closed pluripolar set.

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Robert Xin Dong, Bun Wong. 2021-09-03. Bergman-Calabi diastasis and K\"ahler metric of constant holomorphic sectional curvature. https://doi.org/10.4310/pamq.2022.v18.n2.a6

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