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

页码：32 / 34

页数：3

共 13 条

[1] Desikan K., 2018, PRESPACE TIME J, V9
[2] Desikan K., 2017, INT J PURE APPL PHYS, V13, P303
[3] COSMOLOGICAL THEORY BASED ON LYRAS GEOMETRY
HALFORD, WD
[J]. AUSTRALIAN JOURNAL OF PHYSICS, 1970, 23 (06): : 863 - &
[4] SCALAR-TENSOR THEORY OF GRAVITATION IN A LYRA MANIFOLD
HALFORD, WD
[J]. JOURNAL OF MATHEMATICAL PHYSICS, 1972, 13 (11) : 1699 - &
[5] Lyra G., 1951, Math. Z, V54, P52, DOI [10.1007/BF01175135, DOI 10.1007/BF01175135]
[6] A STATIC COSMOLOGICAL MODEL
SEN, DK
[J]. ZEITSCHRIFT FUR PHYSIK, 1957, 149 (03): : 311 - 323
[7] SCALAR-TENSOR THEORY OF GRAVITATION IN A MODIFIED RIEMANNIAN MANIFOLD
SEN, DK
DUNN, KA
[J]. JOURNAL OF MATHEMATICAL PHYSICS, 1971, 12 (04) : 578 - &
[8] A new class of cosmological models in Lyra geometry
Singh, GP
Desikan, K
[J]. PRAMANA-JOURNAL OF PHYSICS, 1997, 49 (02): : 205 - 212
[9] LYRA GEOMETRY AND COSMOLOGY - A REVIEW
SINGH, T
SINGH, GP
[J]. FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, 1993, 41 (08): : 737 - 764
[10] BIANCHI TYPE-I COSMOLOGICAL MODELS IN LYRAS GEOMETRY
SINGH, T
SINGH, GP
[J]. JOURNAL OF MATHEMATICAL PHYSICS, 1991, 32 (09) : 2456 - 2458

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