arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.04584gr-qcmath.DG
收藏

伴随算子线性化引力的对称性

Symmetries of linearized gravity from adjoint operators

Steffen Aksteiner, Thomas Bäckdahl

摘要:

基于算子恒等式及其形式伴随,我们导出了在彼得罗夫D型真空背景下,特别是在克尔时空背景下线性化爱因斯坦算子的两个对称算子。其中之一是四阶微分,与Cohen和Kegeles的一个结果相吻合。另一个是一个新的六阶微分算子。相应的算子恒等式分别基于Teukolsky方程和Teukolsky-Starobinski恒等式。该方法也适用于其他场方程,这是说明与麦克斯韦方程。由此产生的对称性运营商连接到赫兹和德拜的潜力,以及Teukolsky方程的麦克斯韦和线性化重力的可分性。

英文摘要:

Based on operator identities and their formal adjoints, we derive two symmetry operators for the linearized Einstein operator on vacuum backgrounds of Petrov type D and in particular the Kerr spacetime. One of them is of differential order four and coincides with a result of Cohen and Kegeles. The other one is a new operator of differential order six. The corresponding operator identities are based on the Teukolsky equation and the Teukolsky-Starobinski identities, respectively. The method applies to other field equations as well, which is illustrated with the Maxwell equation. The resulting symmetry operators are connected to Hertz and Debye potentials as well as to the separability of the Teukolsky equation for both Maxwell and linearized 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。

↑