STRING COSMOLOGICAL MODELS WITH BULK VISCOSITY IN NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY OF GRAVITATION

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RAO VELAGAPUDI UMA MAHESWARA; DAVULURI NEELIMA

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ISSN: 2588-4824

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Paper Information

Journal: JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL) Year:2013 | Volume:7 | Issue:- Page(s): 1-7

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Title

STRING COSMOLOGICAL MODELS WITH BULK VISCOSITY IN NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY OF GRAVITATION

Author(s)

RAO VELAGAPUDI UMA MAHESWARA | DAVULURI NEELIMA | Issue Writer Certificate

Keywords

BULK VISCOSITY

COSMIC STRINGS

BIANCHI TYPE II

VIII

AND IX METRICS

NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY

Abstract

We have obtained and presented spatially homogeneous Bianchi types II, VIII, and IX string cosmological models with BULK VISCOSITY in Nordtvedt's (Astrophys. J.161:1059, 1970) general scalar-tensor theory of gravitation with the help of a special case proposed by Schwinger. It is observed that only the bulk viscous cosmological model exists in the case of Bianchi type IX universe. Some important features of the models, thus obtained, have been discussed.

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APA: Copy

RAO VELAGAPUDI, UMA MAHESWARA, & DAVULURI, NEELIMA. (2013). STRING COSMOLOGICAL MODELS WITH BULK VISCOSITY IN NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY OF GRAVITATION. JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL), 7(-), 1-7. SID. https://sid.ir/paper/318776/en

Vancouver: Copy

RAO VELAGAPUDI UMA MAHESWARA, DAVULURI NEELIMA. STRING COSMOLOGICAL MODELS WITH BULK VISCOSITY IN NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY OF GRAVITATION. JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL)[Internet]. 2013;7(-):1-7. Available from: https://sid.ir/paper/318776/en

IEEE: Copy

UMA MAHESWARA RAO VELAGAPUDI, and NEELIMA DAVULURI, “STRING COSMOLOGICAL MODELS WITH BULK VISCOSITY IN NORDTVEDT'S GENERAL SCALAR-TENSOR THEORY OF GRAVITATION,” JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL), vol. 7, no. -, pp. 1–7, 2013, [Online]. Available: https://sid.ir/paper/318776/en

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