String Cosmological Solutions in Self-Creation Theory of Gravitation

Abstract

We have studied the problem of cosmic strings for Bianchi-I, II, VIII and IX string cosmological models in Barber's (Gen. Relativ. Gravit. 14:117, 1982) second self-creation theory of gravitation. We have obtained some classes of solutions by considering different functional form for metric potentials. It is also observed that due to the presence of scalar field, the power index 'm' of the metric coefficients has a range of values.

Bianchi type-I magnetized radiating cosmological model in self creation theory of gravitation

“…Yadav et al (2007) described some magnetized bulk viscous string cosmological models in General Relativity. Venkateswarlu et al (2008) also discussed string cosmological models in self-creation theory. Katore et al (2008) studied plane symmetric cosmological models with negative constant deceleration parameter in self-creation theory.…”

Axially symmetric string cosmological models in Brans-Dicke theory of gravitation

“…and have discussed some string cosmological models in Saez-Ballester scalartensor theory of gravitation. Venkateswarlu et al (2007) have investigated Bianchi type-I, II, VIII & IX string cosmological solutions in self creation theory of gravitation. Reddy and Subba Rao (2006) have studied Axially symmetric string cosmological model in Brans-Dicke theory of gravitation.…”

Plane symmetric string cosmological models in self-creation theory of gravitation

“…Reddy et al (2006) and Reddy and Naidu (2007) have discussed some string cosmological models in Saez-Ballester scalar-tensor theory of gravitation. Venkateswarlu et al (2007) have investigated Bianchi type-I, II, VIII & IX string cosmological solutions in self creation theory of gravitation. Recently Rao et al (2008) have obtained Exact Bianchi type-II, VIII and IX string cosmological models Saez-Ballester theory and Mohanty and Mahanta (2008) have discussed the plane symmetric cosmological model in Barber's second self creation theory only in case of ρ = λ.…”