arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1506.03415gr-qc
收藏

Cartan-Karlhede算法中的标量多项式曲率不变量

Scalar Polynomial Curvature Invariants in the Context of the Cartan-Karlhede Algorithm

D. Brooks, D. D. McNutt, J. P. Simard, N. Musoke

摘要:

我们采用Cartan-Karlhede算法,以完全描述类哥德尔时空的三维引力。通过检查允许的Segre类型(或P型)的Ricci张量,我们提出的结果的Cartan-Karlhede算法的每个子类的代数独立的Cartan不变量在每个订单。使用这个较小的Cartan不变量子集,我们用这个Cartan不变量子集来表示Gödel-like时空的标量多项式曲率不变量,并生成一个最小的标量多项式曲率不变量集,它唯一地表征Gödel-like时空类中的度量,并用Ricci张量的P-型来识别子类。

英文摘要:

We employ the Cartan-Karlhede algorithm in order to completely characterize the class of Gödel-like spacetimes for three-dimensional gravity. By examining the permitted Segre types (or P-types) for the Ricci tensor we present the results of the Cartan-Karlhede algorithm for each subclass in terms of the algebraically independent Cartan invariants at each order. Using this smaller subset of Cartan invariants we express the scalar polynomial curvature invariants for the Gödel-like spacetimes in terms of this subset of Cartan invariants and generate a minimal set of scalar polynomial curvature invariants that uniquely characterize metrics in the class of Gödel-like spacetimes and identify the subclasses in terms of the P-types of the Ricci tensor.

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。

↑