Robertson-Walker cosmological models with perfect fluid in general relativity

被引:0
|
作者
Rishi Kumar Tiwari [1 ]
机构
[1] Department of Mathematics,Govt.Model Science College Rewa(M.P.) 486001,India
关键词
cosmological parameters—cosmology:variable cosmological term;
D O I
暂无
中图分类号
P159 [宇宙学];
学科分类号
摘要
Einstein’s field equations with variable gravitational and cosmological constants are considered in the presence of perfect fluid for a Robertson-Walker universe by assuming the cosmological term to be proportional to R-m(R is a scale factor and m is a constant).A variety of solutions is presented.The physical significance of the cosmological models has also been discussed.
引用
收藏
页码:767 / 775
页数:9
相关论文
共 50 条
  • [41] Rotating perfect fluid models in general relativity
    Perjés, Z.
    2000, Wiley-VCH Verlag Berlin GmbH, Weinheim, Germany (09):
  • [42] Rotating perfect fluid models in general relativity
    Perjés, Z
    ANNALEN DER PHYSIK, 2000, 9 (3-5) : 368 - 377
  • [43] Perfect-fluid, generalized Robertson-Walker space-times, and Gray's decomposition
    Mantica, Carlo Alberto
    Molinari, Luca Guido
    Suh, Young Jin
    Shenawy, Sameh
    JOURNAL OF MATHEMATICAL PHYSICS, 2019, 60 (05)
  • [44] Global dynamics of Yang-Mills field and perfect-fluid Robertson-Walker cosmologies
    Alho, Artur
    Bessa, Vitor
    Mena, Filipe C.
    JOURNAL OF MATHEMATICAL PHYSICS, 2020, 61 (03)
  • [45] FINITE PERTURBATIONS ON PERFECT FLUID FRIEDMANN-ROBERTSON-WALKER MODELS
    DIAZ, MC
    GLEISER, RJ
    PULLIN, JA
    ASTROPHYSICAL JOURNAL, 1989, 339 (01): : 1 - &
  • [46] SOME ANISOTROPIC NON-STATIC PERFECT FLUID COSMOLOGICAL MODELS IN GENERAL-RELATIVITY
    ROY, SR
    TIWARI, OP
    JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1982, 15 (05): : 1747 - 1755
  • [47] Bianchi Type-IX String Cosmological Models for Perfect Fluid Distribution in General Relativity
    Tyagi, Atul
    Sharma, Keerti
    Jain, Payal
    CHINESE PHYSICS LETTERS, 2010, 27 (07)
  • [48] Some Robertson-Walker models with time dependent G and Λ
    R. K. Tiwari
    Astrophysics and Space Science, 2009, 321 : 147 - 150
  • [50] Some Robertson-Walker models with variable G and Lambda
    Abdussattar
    Vishwakarma, RG
    AUSTRALIAN JOURNAL OF PHYSICS, 1997, 50 (05): : 893 - 901