标题： I型时空的横向框架：一种一般的代数方法 显示英文标题

标题： Transverse frames for Petrov type I spacetimes: a general algebraic procedure

摘要： 我们开发了一种代数过程，将一般的纽曼-彭罗斯四面体在Petrov I型时空内旋转到一个Weyl标量$\Psi_{1}$和$\Psi_{3}$等于零的框架中，假设初始时所有Weyl标量都不为零。新的框架突出了时空的物理特性。特别是，在Petrov I型时空内，将$\Psi_{1}$和$\Psi_{3}$设为零，使得Coulomb型效应$\Psi_{2}$与横向自由度$\Psi_{0}$和$\Psi_{4}$的叠加变得明显。 显示英文摘要

摘要： We develop an algebraic procedure to rotate a general Newman-Penrose tetrad in a Petrov type I spacetime into a frame with Weyl scalars $\Psi_{1}$ and $\Psi_{3}$ equal to zero, assuming that initially all the Weyl scalars are non vanishing. The new frame highlights the physical properties of the spacetime. In particular, in a Petrov Type I spacetime, setting $\Psi_{1}$ and $\Psi_{3}$ to zero makes apparent the superposition of a Coulomb-type effect $\Psi_{2}$ with transverse degrees of freedom $\Psi_{0}$ and $\Psi_{4}$.