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bulk viscous string cosmological models in saez – ballester theory of gravitation
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نویسنده
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rao v u m ,vijaya santhi m ,sireesha k v s ,sandhya rani n
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منبع
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پژوهش فيزيك ايران - 1397 - دوره : 18 - شماره : 3 - صفحه:107 -116
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چکیده
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Spatially homogeneous bianchi typeii, viii and ix anisotropic, as well as isotropic cosmological models can be obtained in a scalar tensor theory of gravitation proposed by saez and ballester (1986) when the source for energy momentum tensor is a bulk viscous fluid containing onedimensional cosmic strings. all the models obtained and presented here are expanding, nonrotating and accelerating. also, some important features of the models thus obtained have been discussed.
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کلیدواژه
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bianchi type - ii ,viii and ix metrics ,bulk viscosity ,cosmic strings ,saez – ballester theory
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آدرس
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andhra university, department of applied mathematics, india, andhra university, department of applied mathematics, india, gitam university, department of engineering mathematics, india, andhra university, department of applied mathematics, india
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Bulk viscous string cosmological models in Saez – Ballester theory of gravitation
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Authors
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Rao V U M ,Vijaya Santhi M ,Sireesha K V S ,Sandhya Rani N
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