Type III and II universal spacetimes

Spanish Relativity Meeting: almost 100 years after Einstein's revolution

Hervik, S.^1 ; Pravda, V.^2 ; Pravdová, A.^2

Faculty of Science and Technology, University of Stavanger, Stavanger

N-4036, Norway^1

Institute of Mathematics, Academy of Sciences of the Czech Republic, itná 25, Prague 1

115 67, Czech Republic^2

关键词: Riemann tensors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/600/1/012066/pdf
DOI  :  10.1088/1742-6596/600/1/012066

来源: IOP

【 摘 要 】

We briefly summarize our recent results on universal spacetimes. We show that universal spacetimes are necessarily CSI, i.e. for these spacetimes, all curvature invariants constructed from the Riemann tensor and its derivatives are constant. Then, we focus on type III universal spacetimes and discuss a proof of universality for a class of type III Kundt spacetimes. We also mention explicit examples of type III and II universal spacetimes.