搜索结果: 1-7 共查到“物理学 cosmological model”相关记录7条 . 查询时间(0.109 秒)
A cyclic cosmological model based on the f(ρ) modified theory of gravity
modified gravity, dark energy, cosmology, nonsingular,cosmological constant
2011/8/26
We consider FLRW cosmological models for perfect fluid (with rho as the energy density) in the frame work of the f(rho) modified theory of gravity [V. N. Tunyak, Russ. Phys. J. 21, 1221 (1978); J. R. ...
L.R.S. Bianchi type II Stiff Fluid cosmological model with Decaying Vacuum Energy Density $\Lambda$ in general relativity
LRS Bianchi type II models Cosmological constant
2010/12/20
Locally rotationally symmetric (L.R.S.) Bianchi type II stiff fluid cos-mological model is investigated. To get the deterministic model of the universe, we have assumed a condition A = Bm between metr...
Tilted Bianchi Type I dust fluid magnetized cosmological model in general relativity
Bianchi type I dust fluid tilted models
2010/4/8
Tilted Bianchi Type I perfect fluid cosmological model in presence of magnetic field is investigated. To get a determinate solution, we assume p = 0 and A = BC, where A, B and C are metric potentials....
Kantowski-Sachs viscous fluid cosmological model with a varying L
Kantowski-Sachs viscous fluid model cosmology variable cosmological constant
2010/4/8
We study the Kantowski-Sachs cosmological model filled with viscous fluid in the presence of cosmological term L. To get a deterministic solution, a condition between metric potentials is used. The vi...
2005Vol.43No.5pp.957-960DOI:
Cosmological Model Based on Gauge Theory of Gravity
WU Ning
Institute of High Energy Physics, P.O. Box 918-1, Beijing 100039, China
...
Bianchi Type VI1 Viscous Fluid Cosmological Model in Wesson´s Theory of Gravitation
Gauge function viscous fluid scale invariant theory
2010/4/9
Field equations of a scale invariant theory of gravitation proposed by Wesson [1, 2] are obtained in the presence of viscous fluid with the aid of Bianchi type VIh space-time with the time dependent g...
An Open Singularity-Free Cosmological Model with Inflation
Open Singularity-Free Cosmological Inflation open universe
2010/4/13
In the light of recent observations which point to an open universe (W 0 < 1), we reconsider singularity-free models, originally constructed for closed universes. Our model starts from a nonsingular s...