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arXiv 0802.3034gr-qcastro-phhep-th
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Lovelock引力的Bianchi导数刻画

Characterization of the Lovelock gravity by Bianchi derivative

Naresh Dadhich

摘要:

我们证明定理:在引力运动方程中,作为二阶发散自由张量的二阶拟线性微分算子,总是可以由四阶张量的Bianchi导数的迹导出,这是一个关于曲率的齐次多项式。多项式拉格朗日量中每一项都存在这样一个张量,这是洛夫洛克引力的一个新的刻画。

英文摘要:

We prove the theorem: The second order quasi-linear differential operator as a second rank divergence free tensor in the equation of motion for gravitation could always be derived from the trace of the Bianchi derivative of the fourth rank tensor, which is a homogeneous polynomial in curvatures. The existence of such a tensor for each term in the polynomial Lagrangian is a new characterization of the Lovelock gravity.

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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