Dynamics of String Cosmological Model in f(R,Lm) Theory of Gravity

Abstract

The present paper examines the FLRW model with cosmic string within the framework of f(R, Lm) gravity, considering two different forms of f(R, Lm) gravity such as f(R, Lm) = R/2 + Lηm + β and f(R, Lm) = Λe[(R/2Λ)+(Lm/Λ)], where η, β and Λ are free model parameters. The solutions of the models are obtained using both, the power law and the hybrid expansion law. The resulting physical and dynamical parameters of the models analyzed and presented through graphical representations.

Keywords

• f(r,lm)gravity
• string cosmological model
• power law
• hybrid expansion law