2015
DOI: 10.1007/s10773-014-2504-z
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Bianchi Type II VIII and IX String Cosmological Models in F(R) Gravity

Abstract: In this present paper, we investigate Bianchi type II VIII and IX string cosmological models in the context of f (R) gravity. Exact solutions of the field equations are obtained. It is found that the scale factors (A, B) admit oscillatory nature in case of Bianchi type II and IX models. The strings do not exist in all three cosmological models for the f (R) theory of gravitation.

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Cited by 15 publications
(10 citation statements)
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“…It is important to mention that solutions (33) and (34) reduce to (7) with constant nonzero Ricci scalar in the specific case when k = 2. In the generic case of course, when k = 2, we can see from ( 35) that (33) in its full generality is not a constant Ricci scalar solution.…”
Section: Discussionmentioning
confidence: 99%
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“…It is important to mention that solutions (33) and (34) reduce to (7) with constant nonzero Ricci scalar in the specific case when k = 2. In the generic case of course, when k = 2, we can see from ( 35) that (33) in its full generality is not a constant Ricci scalar solution.…”
Section: Discussionmentioning
confidence: 99%
“…where g rr corresponds to the radial variable of the metric and thus, express the latter in an ingoing Eddington -Finkelstein type of coordinate system. The minus in transformation (37) corresponds to line element (33), while the plus is for (34). As a result, we obtain…”
Section: Thermodynamic Propertiesmentioning
confidence: 95%
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