نتایج جستجو برای: سیستم لرزه بر t r f

تعداد نتایج: 1771927  

Journal: :New Astronomy 2021

The article communicates an alternative route to suffice the late-time acceleration considering a bulk viscous fluid with viscosity coefficient $\zeta =\zeta _{0}+ \zeta _{1} H + _{2} H^{2}$, where _{0}, _{1}, _{2}$ are constants in framework of $f(R,T)$ modified gravity. We presume functional form be $f=R+2\alpha T$ $\alpha$ is constant. then solve field equations for Hubble Parameter and stud...

Journal: :Журнал Экспериментальной и Теоретической Физики 2014

Journal: :Journal of Experimental and Theoretical Physics 2013

Journal: :Journal of Experimental and Theoretical Physics 2014

Journal: :International Journal of Geometric Methods in Modern Physics 2023

The present research paper is an investigation of dark energy nature logarithmic $f(R, T)$-gravity cosmology in a flat FLRW space-time universe. We have derived modified Einstein's field equations for the function T)=R-16\pi G\alpha\ln(T)$ where $R$ Ricci scalar curvature, $T$ trace stress momentum tensor and $\alpha$ model parameter. solved form two fluid scenario as perfect-fluid dark-fluid, ...

Journal: :Canadian Journal of Physics 2020

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