Existence and geometry of Hermitian metrics with constant second scalar curvature

Fuente: arXiv
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Main Author: Zhang, Liangdi
Format: Preprint
Published: 2026
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_version_ 1866914286620639232
author Zhang, Liangdi
author_facet Zhang, Liangdi
contents We study Hermitian metrics with constant second scalar curvature on compact manifolds. We first consider a Yamabe-type problem for the second Bismut scalar curvature under a natural topological condition, and then analyze elliptic equations arising from constant second Chern scalar curvature within a fixed Hermitian conformal class and derive geometric consequences. Finally, under an Einstein-type condition on the second Chern curvature, a pluriclosed Gauduchon Hermitian metric has constant second Chern scalar curvature, which in certain cases further implies the existence of a Kähler-Einstein metric.
format Preprint
id arxiv_https___arxiv_org_abs_2601_20572
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Existence and geometry of Hermitian metrics with constant second scalar curvature
Zhang, Liangdi
Differential Geometry
53C55, 53C21
We study Hermitian metrics with constant second scalar curvature on compact manifolds. We first consider a Yamabe-type problem for the second Bismut scalar curvature under a natural topological condition, and then analyze elliptic equations arising from constant second Chern scalar curvature within a fixed Hermitian conformal class and derive geometric consequences. Finally, under an Einstein-type condition on the second Chern curvature, a pluriclosed Gauduchon Hermitian metric has constant second Chern scalar curvature, which in certain cases further implies the existence of a Kähler-Einstein metric.
title Existence and geometry of Hermitian metrics with constant second scalar curvature
topic Differential Geometry
53C55, 53C21
url https://arxiv.org/abs/2601.20572