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Algebraically special perturbations of the Schwarzschild solution in higher dimensions

机译:schwarzschild解的代数特殊扰动   更高的尺寸

摘要

We study algebraically special perturbations of a generalized Schwarzschildsolution in any number of dimensions. There are two motivations. First, tolearn whether there exist interesting higher-dimensional algebraically specialsolutions beyond the known ones. Second, algebraically special perturbationspresent an obstruction to the unique reconstruction of general metricperturbations from gauge-invariant variables analogous to the Teukolsky scalarsand it is desirable to know the extent of this non-uniqueness. In fourdimensions, our results generalize those of Couch and Newman, who foundinfinite families of time-dependent algebraically special perturbations. Inhigher dimensions, we find that the only regular algebraically specialperturbations are those corresponding to deformations within the Myers-Perryfamily. Our results are relevant for several inequivalent definitions of"algebraically special".
机译:我们研究了任意数量级的广义Schwarzschild解的代数特殊扰动。有两个动机。首先,了解除已知解之外是否还存在有趣的高维代数特殊解。其次,代数特殊扰动代表了类似于Teukolsky标量的规范不变变量对通用度量扰动的唯一重构的阻碍,并且希望知道这种非唯一性的程度。在四个维度上,我们的结果推广了Couch和Newman的研究结果,他们发现了无限的时变代数特殊扰动族。在更高的维度上,我们发现唯一的规则代数特殊扰动是那些对应于Myers-Perryfamily内部变形的扰动。我们的结果与“代数特殊”的几个不等价定义有关。

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