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arXiv · 2601.09893

Complex Monge-Ampère equation in Orlicz space and Diameter Bound

Lei Zhang·Zhenlei Zhang
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Abstract

In this paper, we establish diameter bounds for compact Kähler manifolds equipped with Kähler metrics $ω$, assuming the associated measure lies in a specific Orlicz space and satisfies an integrability condition. Firstly, we prove a priori estimates for solutions of the complex Monge-Ampère equation in Orlicz spaces, encompassing $L^{\infty}$ and stability estimates. This is achieved by employing Kołodziej's approach \cite{Ko98} and the argument of Guo-Phong-Tong-Wang \cite{GuPhToWa21}, respectively. Secondly, building on the work of Guo-Phong-Song-Sturm \cite{GuPhSoSt24-1}, we derive the uniform (local/global) estimates of the Green's function and its gradient for the associated Kähler metric $ω$.

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Lei Zhang, Zhenlei Zhang. 2026-07-02. Complex Monge-Ampère equation in Orlicz space and Diameter Bound. https://arxiv.org/abs/2601.09893

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