3 papers
gr-qc2026
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…
gr-qc2024
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…
gr-qc2024
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…