理学 >>> 天文学 >>> 天体力学 天体物理学 天体化学 天体测量学 射电天文学 空间天文学 天体演化学 星系与宇宙学 恒星与银河系 太阳与太阳系 天体生物学 天文学其他学科
搜索结果: 1-6 共查到天文学 R-W metric相关记录6条 . 查询时间(0.142 秒)
The vivid image of R-W metric for the case of hypersphere is given; The hypersphere is proposed as the only model for the physical universe; The cosmic radius R(t) may be defined as a cosmic broad tim...
Non-metric chaotic inflation     Non-metric chaotic  inflation       2011/10/11
We consider inflation within the context of what is arguably the simplest non-metric extension of Einstein gravity. There non-metricity is described by a single graviscalar field with a non-minimal ki...
It is a well-known truism, inspired on the general theory of relativity, that gravity gravitates. Here we suggest the possibility that dark matter may be caused by the gravitation of the metric. At fi...
It is known that dynamical solutions of the k-essence equation of motion change the metric for the perturbations around these solutions and the perturbations propagate in an emergent spacetime with m...
We reexamine Petrov type D gravitational fields generated by a perfect fluid with spatially homogeneous energy density and in which the flow lines form a timelike non-shearing and non-rotating congrue...
We investigate the consequences of the pseudo-complex General Relativity within a pseudo-complexified Roberston-Walker metric. A contribution to the energy-momentum tensor arises, which corresponds to...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...