Abstract
In this paper, we investigate the geometry of the base complex manifold of an effectively parametrized holomorphic family of stable Higgs bundles over a fixed compact Kähler manifold. The starting point of our study is Schumacher–Toma/Biswas–Schumacher’s curvature formulas for Weil–Petersson-type metrics, in Sect. 2, we give some applications of their formulas on the geometric properties of the base manifold. In Sect. 3, we calculate the curvature on the higher direct image bundle, which recovers Biswas–Schumacher’s curvature formula. In Sect. 4, we construct a smooth and strongly pseudo-convex complex Finsler metric for the base manifold, the corresponding holomorphic sectional curvature is calculated explicitly.
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Notes
Throughout this paper, we use the lowercase Greek letters \(\alpha ,\beta ,\gamma ,\cdots \) and Roman letters \(i,j,k,\cdots \) for the coordinates on X and S, respectively.
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Acknowledgements
The author P. Huang acknowledges funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC 2181/1 - 390900948 (the Heidelberg STRUCTURES Excellence Cluster), and by Collaborative Research Center/Transregio (CRC/TRR 191; 281071066-TRR 191). The authors would like to express their deep gratitude to the anonymous referee for many valuable suggestions.
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Hu, Z., Huang, P. Curvature Formulas Related to a Family of Stable Higgs Bundles. Commun. Math. Phys. 387, 1491–1514 (2021). https://doi.org/10.1007/s00220-021-04132-9
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DOI: https://doi.org/10.1007/s00220-021-04132-9