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arXiv 1807.03533math.DG
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具有变形2阶提升度量的二阶切丛

On the second-order tangent bundle with deformed 2-nd lift metric

Abdullah Magden, Kubra Karaca, Aydin Gezer

摘要:

设(M,g)是伪黎曼流形,$T^2M$是它的二阶切丛,它具有变形的二阶提升度量g,g是由二阶提升度量的水平部分用一个对称的(0,2)-张量场c变形得到的.本文首先计算了$(T^2M,g)$的Levi-Civita联络及其黎曼曲率张量场。给出了$(T^2M,g)$是半对称的充要条件。其次,我们证明了$(T^2M,g)$是一个具有自然可积幂零结构的多元全纯B-流形。最后,我们得到了具有殆复结构的第二次提升的$(T^2M,g)$是反Kähler流形的条件

英文摘要:

Let (M,g) be a pseudo-Riemannian manifold and $T^2M$ be its the second-order tangent bundle equipped with the deformed 2-nd lift metric g which obtained from the 2-nd lift metric by deforming the horizontal part with a symmetric (0,2)-tensor field c. In the present paper, we first compute the Levi-Civita connection and its Riemannian curvature tensor field of $(T^2M,g)$. We give necessary and sufficient conditions for $(T^2M,g)$ to be semi-symmetric. Secondly, we show that $(T^2M,g)$ is a plural-holomorphic B-manifold with the natural integrable nilpotent structure. Finally, we get the conditions under which $(T^2M,g)$ with the 2-nd lift of an almost complex structure is an anti-Kähler manifold

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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