Static spherical wormhole models in f (R, T) gravity

Wormholes in $$R^2$$ R 2 -gravity within the f(R, T) formalism

“…As regards the matter content of the present WH solutions, we would like to highlight that, departing from what can be found in the f (R, T ) WH literature [22][23][24][25][26][27], no equation of state (EoS) was assumed in this article. Since the WH EoS is still poorly known, this is a considerable advantage of the present solutions.…”

“…[22], WHs were firstly analyzed within the linear frame of f (R, T ) gravity, i.e., f (R, T ) = R+2λT , with the matter Lagrangian L m = −ρ, ρ being the matter-energy density of the WH. Static numerical solutions have been obtained for different WH matter contents and stable solutions were attained in [23,24]. Moraes et al have investigated some theoretical predictions for static WHs obtained from f (R, T ) gravity where the matter Lagrangian is governed by the total pressure of the WH [25].…”

Dynamics of Bianchi I Universe in Extended Gravity with Scale Factors

“…The energy density has remained positive and approached to the maximum value at the core of stars. Yousaf et al [31] have It is to be noted that perfect fluid is one of the matter of the universe which go through variation and contraction of the action. At the back drop of our mind, we would be interested to see that…”

Existence of compact structures in f(R, T) gravity

“…From literature, some of them are, The non-static line element for collapsing of spherical body having anisotropic fluid were discussed in [59]. The static spherical wormhole solutions were found in [60,61]. Furthermore, the perturbation techniques were used in study of spherical stars [62].…”