4 papers
Domain Walls in Kaluza-Klein spacetime
L. K. Patel, Naresh Dadhich, R. Tikekar
Three families of exact solutions of Einstein field equations are found. Each family contains three parameters. Two of these families represent thick domain walls in a five dimensi…
Higher Dimensional Analogue of McVittie Solution
L. K. Patel, R. Tikekar, Naresh Dadhich
A generalization of the McVittie solution, representing spacetime of a mass particle placed in (n+2) dimensional Robertson-Walker universe is reported.
On Singularity Free Cosmological Models
N. Dadhich, R. Tikekar, L. K. Patel
In 1990 Senovilla obtained an interestisng cosmological solution of Einstein's equations that was free of the big-bang singularity. It represented an inhomogeneous and anisotro…
Singularity Free Spacetimes -- I :Metric and Fluid Models
Naresh Dadhich, L. K. Patel, R. Tikekar
We show that the metric for the singularity free family of fluid models [3] can be obtained by a simple and natural inhomogenisation and anisotropisation procedure from Friedman--R…