Cosmological Models in Lyra Geometry with Time-varying Displacement Field

被引：0
|
作者：
Desikan, Kalyani [1 ]
机构：
[1] Vellore Inst Technol, Sch Adv Sci, Dept Math, Chennai, Tamil Nadu, India
来源：
AFRICAN REVIEW OF PHYSICS | 2020年 / 15卷
关键词：
SCALAR-TENSOR THEORY; GRAVITATION;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Cosmological models with time dependent displacement field in the cosmological theory based on Lyra's geometry have been discussed. Exact solutions have been obtained for a spatially flat FRW model by considering a particular form for the time dependent displacement field. We have also obtained conditions under which the matter-dominated, flat universe undergoes decelerated or accelerated expansions. Accelerated expansion of the Universe is of particular interest in view of the recent observations.
引用
收藏
页码：32 / 34
页数：3
相关论文
共 50 条
  • [21] Exact solutions of some cosmological models in Lyra geometry
    J. K. Singh
    Astrophysics and Space Science, 2008, 314 : 361 - 365
  • [22] Anisotropic string cosmological models in Lyra's geometry
    Mohanty G.
    Sahoo R.R.
    Astrophysics and Space Science, 2008, 315 (1-4) : 167 - 173
  • [23] Spatially homogeneous cosmological models in Lyra's geometry
    Singh, JK
    Ram, S
    NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, 1997, 112 (08): : 1157 - 1162
  • [24] Exact solutions of some cosmological models in Lyra geometry
    Singh, J. K.
    ASTROPHYSICS AND SPACE SCIENCE, 2008, 314 (04) : 361 - 365
  • [25] Higher dimensional inhomogeneous cosmological models in Lyra geometry
    F. Rahaman
    S. Chakraborty
    S. Das
    R. Mukherjee
    M. Hossain
    N. Begam
    Astrophysics and Space Science, 2003, 288 : 379 - 387
  • [26] Perfect fluid cosmological models with time-varying constants
    Belinchón, JA
    Chakrabarty, I
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2003, 12 (06): : 1113 - 1129
  • [27] Dark Energy Cosmological Models in Lyra Geometry for Bianchi-I Space Time
    Bishi, Binaya Kumar
    Lepse, Pratik Vijay
    Beesham, Aroonkumar
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES, 2023, 93 (04) : 645 - 659
  • [28] Dark Energy Cosmological Models in Lyra Geometry for Bianchi-I Space Time
    Binaya Kumar Bishi
    Pratik Vijay Lepse
    Aroonkumar Beesham
    Proceedings of the National Academy of Sciences, India Section A: Physical Sciences, 2023, 93 : 645 - 659
  • [29] SUPERFLUID VACUUM STATE, TIME-VARYING COSMOLOGICAL CONSTANT, AND NONSINGULAR COSMOLOGICAL MODELS
    SINHA, KP
    SIVARAM, C
    SUDARSHAN, ECG
    FOUNDATIONS OF PHYSICS, 1976, 6 (06) : 717 - 726
  • [30] Cosmological models with negative constant deceleration parameter in lyra geometry
    Rahaman, F
    Begum, N
    Bag, G
    Bhui, B
    ASTROPHYSICS AND SPACE SCIENCE, 2005, 299 (03) : 211 - 218
12345