F(R)引力理论中平面对称静态时空的固有曲率共线

M. Ramzan, A. Nazir, M. Mufti
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摘要

本文的目的是研究f(R)引力理论中平面对称静态时空的固有曲率共线。我们取了常曲率和非常曲率的度量,并利用消失李氏导数和直接积分技术构造了曲率向量场。在这里,两种情况下的爱因斯坦场方程(EFEs)的解都涉及到逆曲率项,这可能会导致引力的增加,从而证明宇宙的加速膨胀是正确的。结果表明,曲率共线变成了杀向量场,因此,在这两种情况下,适当的曲率共线都不存在。
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Proper Curvature Collineations of Plane Symmetric Static Spacetime in F(R) Theory of Gravity
The purpose of this paper is to study the proper curvature collineations of plane symmetric static spacetime in f(R) theory of gravity. We have taken the metrics of both constant and non-constant curvature and formulated the curvature vector fields by using vanishing Lie derivative and direct integration technique. Here, the solutions of the Einstein’s field equations (EFEs) for both cases involve inverse curvature terms which may cause an increase in gravity that justifies the accelerated expansion of the universe. It turns out that curvature collineations become Killing vector fields and therefore, proper curvature collineations do not exists in both the cases.
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