On the role of f (G, T) terms in structure scalars
Department of Mathematics, University of the Punjab, Quaid-i-Azam Campus, 54590, Lahore, Pakistan
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Accepted: 19 February 2019
Published online: 31 May 2019
This work is devoted to exploring the effects of f (G, T) terms on the study of structure scalars and their influence on the formulation of the Raychaudhuri, shear and Weyl scalar equations. For this purpose, we have assumed non-static spherically symmetric geometry coupled with shearing viscous locally anisotropic dissipative matter content. We have developed relations among Misner-Sharp mass, Weyl scalar, matter and structure variables. We have also formulated a set of f (G, T) structure scalars after orthogonally breaking down the Riemann curvature tensor. The influences of these scalar functions on the modeling of relativistic radiating spheres are also studied. The factor involved in the emergence of inhomogeneities is also explored for the constant and varying modified curvature corrections. We inferred that f (G, T) structure scalars could provide an effective tool to study the Penrose-Hawking singularity theorems and the Newman-Penrose formalism.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019