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arXiv · 2407.04298

Curvature of higher direct images of sheaves of twisted holomorphic forms

Young-Jun Choi·Georg Schumacher
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Abstract

This paper investigates the curvature properties of higher direct images $ R^qf_*\Omega_{X/S}^p(E)$, where $f: X\rightarrow S$ is a family of compact K\"ahler manifolds equipped with a hermitian vector bundle $E \rightarrow X$. We derive a general curvature formula and explore several special cases, including those where $p + q = n$, $q = 0$, and $p = n$, with $E$ being a line bundle. Furthermore, the paper examines the curvature in the context of fiberwise hermitian flat cases, families of Hermite-Einstein vector bundles, and applications to moduli spaces and Weil-Petersson metrics, providing some insight into their geometric and analytical properties.

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Young-Jun Choi, Georg Schumacher. 2024-07-05. Curvature of higher direct images of sheaves of twisted holomorphic forms. https://arxiv.org/abs/2407.04298

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