Gradient and Eigenvalue Estimates on the Canonical Bundle of Kähler Manifolds
Gradient and Eigenvalue Estimates on the Canonical Bundle of Kähler Manifolds
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DOI:
10.1007/s12220-021-00647-8
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发表时间:
2020-08
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影响因子:
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通讯作者:
Zhiqin Lu;Qi S. Zhang;Meng Zhu
中科院分区:
文献类型:
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作者:
Zhiqin Lu;Qi S. Zhang;Meng Zhu
We prove certain gradient and eigenvalue estimates, as well as the heat kernel estimates, for the Hodge Laplacian on (m, 0) forms, i.e., sections of the canonical bundle of Kähler manifolds, wheremis the complex dimension of the manifold. Instead of the usual dependence on curvature tensor, our condition depends only on the Ricci curvature bound. The proof is based on a new Bochner type formula for the gradient of (m, 0) forms, which involves only the Ricci curvature and the gradient of the scalar curvature.