Cosmological Models with Variable Deceleration Parameter in Scalar Tensor Theory of Gravitation

Abstract

In this communication we have presented the study of Bianchi type-III space-time dark energy cosmological model with the time-dependent deceleration parameter in the scalar tensor theory of Gravitation proposed by Sàez-Ballester theory (Phys. A 113: 467, 1986). We have calculated the exact solution of Einstein’s field equations by using a mathematical relation , here α and n are positive constants. As per need of the study we have also presented the physical and geometrical aspects along with properties in this paper.