Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Binaya K. Bishi"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-10 (2018)
Abstract This article presents cosmological models that arise in a subclass of $$f(R,T)=f(R)+f(T)$$ f(R,T)=f(R)+f(T) gravity models, with different f(R) functions and fixed T-dependence. That is, the gravitational lagrangian is considered as $$f(R,T)
Externí odkaz:
https://doaj.org/article/601f45547b98452fa3ad851e5b2b74bf
Autor:
G. P. Singh, Binaya K. Bishi
Publikováno v:
Advances in High Energy Physics, Vol 2017 (2017)
We have presented FRW cosmological model in the framework of Brans-Dicke theory. This paper deals with a new proposed form of deceleration parameter and cosmological constant Λ. The effect of bulk viscosity is also studied in the presence of modifie
Externí odkaz:
https://doaj.org/article/f6999704609645c99041b533953c627d
Autor:
G. P. Singh, Binaya K. Bishi
Publikováno v:
Advances in High Energy Physics, Vol 2015 (2015)
This paper deals with the study of Bianchi type-I universe in the context of f(R,T) gravity. Einstein’s field equations in f(R,T) gravity have been solved in the presence of cosmological constant Λ and quadratic equation of state (EoS) p=αρ2-ρ,
Externí odkaz:
https://doaj.org/article/9263e32006144ceebd1c3ec78e212bee
Publikováno v:
Chinese Journal of Physics. 81:162-170
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0037a422f21f70790725e1c3abeca2ae
https://doi.org/10.1016/j.cjph.2022.11.020
https://doi.org/10.1016/j.cjph.2022.11.020
Publikováno v:
Indian Journal of Physics. 96:4033-4049
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f672a29bf72b6ac31124f18d3ba6d1
https://doi.org/10.1007/s12648-022-02315-1
https://doi.org/10.1007/s12648-022-02315-1
Publikováno v:
Zeitschrift für Naturforschung A. 77:259-268
In this work, we have developed FLRW cosmological models in f(R, T) gravity. The solution of the modified field equations are obtained under the newly proposed Bakry and Shafeek, “The periodic universe with varying deceleration parameter of the sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b35d0560cc14607b8d9c8b469013f7a9
https://doi.org/10.1515/zna-2021-0192
https://doi.org/10.1515/zna-2021-0192
Publikováno v:
Iranian Journal of Science and Technology, Transactions A: Science. 45:1-11
The manuscript deals with the study of the FLRW universe together with domain walls and quark matter in f(R, T) gravity where R is the Ricci scalar and T is the trace of the energy momentum tensor. We choose $$f(R,T)=R+\alpha R^2+\lambda T$$ . Exact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a01cd895d672658f7bbc484745f7be24
https://doi.org/10.1007/s40995-021-01113-4
https://doi.org/10.1007/s40995-021-01113-4
Publikováno v:
Gravitation and Cosmology. 24:302-307
We study the behavior of cosmological parameters, massive and massless scalar fields (normal or phantom) with a scalar potential in f(R, T) theory of gravity for a flat Friedmann-Robertson-Walker (FRW) universe. To get exact solutions to the modified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cd1aa12c2b53a700db80eadf56dd743
https://doi.org/10.1134/s0202289318030039
https://doi.org/10.1134/s0202289318030039
Autor:
G. P. Singh, Binaya K. Bishi
Publikováno v:
Iranian Journal of Science and Technology, Transactions A: Science. 41:33-43
In this article, we have analysed the Bianchi type-V domain walls and quark matter cosmological model with cosmological constant $$\varLambda$$ in $$f\left( {R,T} \right)$$ theory of gravity with the choice of $$f\left( {R,T} \right) = R + 2f\left( T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3841bbd719a8cbc397a5001216261f22
https://doi.org/10.1007/s40995-017-0189-x
https://doi.org/10.1007/s40995-017-0189-x
Publikováno v:
Chinese Journal of Physics. 54:895-905
The main objective of this article is to study the Bianchi type-I space-time in presence of bulk viscosity and Chaplygin gas in the context of Lyra geometry (LG). Exact solutions of the field equations are obtained under the consideration of (i) scal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9a9217b1fad313087690f06c1201fbf
https://doi.org/10.1016/j.cjph.2016.10.005
https://doi.org/10.1016/j.cjph.2016.10.005