Investigation of space-times through W2-curvature tensor in f (R, G) gravity
The W 2-curvature tensor is an important geometric invariant with relativistic significance,
introduced in the early 1970s by Pokhariyal and Mishra, which can be identified in class 4 in …
introduced in the early 1970s by Pokhariyal and Mishra, which can be identified in class 4 in …
A study of almost pseudo symmetric spacetimes with application to gravity
We prove that an almost pseudo 𝒵 symmetric spacetime with Codazzi type of 𝒵 tensor is
perfect fluid whose velocity vector field B i is parallel. The energy density σ of such perfect …
perfect fluid whose velocity vector field B i is parallel. The energy density σ of such perfect …