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.
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页数：23
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