Spatially-homogeneous cosmologies

被引：0

作者：

Antonio Saez, Juan ^{[1
]}

Mengual, Salvador ^{[2
]}

Josep Ferrando, Joan ^{[2
,3
]}

机构：

[1] Univ Valencia, Dept Matematiques Econ & Empresa, E-46100 Valencia, Spain

[2] Univ Valencia, Dept Astron & Astrofis, E-46100 Valencia, Spain

[3] Univ Valencia, Observ Astron, E-46980 Valencia, Spain

来源：

CLASSICAL AND QUANTUM GRAVITY | 2024年 / 41卷 / 20期

关键词：

spacially-homogeneous; perfect fluid; IDEAL characterization; INTRINSIC CHARACTERIZATION; ASYMPTOTIC DYNAMICS; EQUATIONS; SPACES;

D O I：

10.1088/1361-6382/ad7664

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The necessary and sufficient conditions for a perfect fluid solution to define a spatially-homogeneous cosmology are achieved. These conditions are Intrinsic, Deductive, Explicit and ALgorithmic, and they offer an IDEAL labeling of these geometries. When a three-dimensional group acts on the three-dimensional space-like orbits, the Bianchi type of the model is also obtained.

引用

页数：23

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