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arXiv · 2610.09989

Positive bisectional curvature, Ricci mass, and the fundamental group

Ved Datar·Vamsi Pritham Pingali·Harish Seshadri
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Abstract

We prove the finiteness of the integral of the top power of the Ricci form on a complete, noncompact Kähler manifold with positive bisectional curvature. This settles a special case of a conjecture of Yau and Yang. An immediate corollary is the finiteness of the fundamental group of such manifolds. As in our previous work, the main idea involves the construction and use of plurisubharmonic weight functions with finite Monge-Ampère masses.

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Ved Datar, Vamsi Pritham Pingali, Harish Seshadri. 2026-10-07. Positive bisectional curvature, Ricci mass, and the fundamental group. https://arxiv.org/abs/2610.09989

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