We consider the large class of Siklos spacetimes and investigate their relevant symmetries (homothetic and affine vector fields, Ricci, curvature, Weyl and matter collineations). We prove some general results and obtain complete classifications for homogeneous Siklos spacetimes.

中文翻译：

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关于 Siklos 时空的对称性

我们考虑大类 Siklos 时空并研究它们的相关对称性（同位和仿射向量场、Ricci、曲率、外尔和物质准线）。我们证明了一些一般性结果并获得了齐次 Siklos 时空的完整分类。