4 papers
Exact solutions of the FLRW cosmological model via invariants of the Hamilton-Jacobi method
E. Ahmadi-Azar, K. Atazadeh, A. Eghbali
In this study, we proceed to solve the field equations of the spatially flat Friedman-Lemaitre-Robertson-Walker (FLRW) cosmological model in the presence of the cosmological consta…
Linear independence of field equations in the Brans-Dicke theory
E. Ahmadi-Azar, K. Atazadeh, A. Eghbali
In solving the Brans-Dicke (BD) equations in the BD theory of gravity, their linear independence is important. This is due to fact that in solving these equations in cosmology, if…
Cosmological solutions in the Brans-Dicke theory via invariants of symmetry groups
E. Ahmadi-Azar, K. Atazadeh, A. Eghbali
We proceed to obtain an exact analytical solution of the Brans-Dicke (BD) equations for the spatially flat () Friedmann-Lamaitre-Robertson-Walker (FLRW) cosmological model in…
Exact FLRW cosmological solutions via invariants of the symmetry groups
E. Ahmadi-Azar, K. Atazadeh, A. Eghbali
Until now, various methods have been demonstrated to solve the Friedmann-Lama\'ıtre-Robertson-Walker (FLRW) equations in the spatially flat cosmological model. In this stud…