The Bera's non-static metric in Rosen's bimetric theory of gravitation is considered in the context of cosmic strings. It is interesting to note that cosmic strings do not occur in non-static plane symmetric cosmology

A problem of inhomogeneous plane - symmetric space-time is investigated in Einstein theory without source of gravitation. The vacuum cosmological models are obtained. Some models are physically viable where as others reduce to flat space-time. The surviving models do not admit singularity, in...

The problems of non-static plane symmetric meson field and mesonic perfect fluid in Rosen's [Gen. Rel. Gray., Vol. 4 (1973) 435] bimetric theory of gravitation are considered. It is observed that plane symmetric non-static cosmological model exists in case of scalar meson field where the scalar...

In this paper, we study axially symmetric space-time with strange quark matter attached to string cloud in Rosen's (1973) bimetric theory. It is shown that there is no contribution from strange quark matter, hence vacuum model is presented and studied

The basic objective of this investigation is to explore the impactof a novel gravitational modification, specifically, the$f(\mathcal{G}, \mathbf{T}^2)$ (where $\mathcal{G}:=\mathbf{R}^{2}+R_{\alpha\beta\sigma\varsigma}R^{\alpha\beta\sigma\varsigma}-4R_{\alpha\beta}R^{\alpha\beta}$and...