论文标题
具有动态$λ$作为物质和几何功能的平坦FRW模型
A flat FRW model with dynamical $Λ$ as function of matter and geometry
论文作者
论文摘要
我们在平坦的FRW时空中重新审视了量表因子的演变，并在重力理论下进行了动态$λ$ - term的新广义衰减规则。它分析了某些宇宙学参数，并在这种广义环境中检查了它们的行为，其中包括文献中的几个衰减定律。我们还对各种模型参数获得了观察性约束，并估计了宇宙学参数的当前值$ \ {ω_{m_0} $，$ω__{λ_0} $，$ q_ {0}，$ q_ {0}，t_ {0} $，$ω_________________{0} \} $以及各种观察结果。还讨论了该模型中过去和将来的有限时间。 \ end {摘要}
We revisit the evolution of the scale factor in a flat FRW spacetime with a new generalized decay rule for the dynamic $Λ$-term under modified theories of gravity. It analyses certain cosmological parameters and examines their behaviours in this generalized setting which includes several decay laws in the literature. We have also obtained observational constraints on various model parameters and estimated the present values of cosmological parameters $\{Ω_{m_0}$, $Ω_{Λ_0}$, $q_{0}, t_{0}$, $ω_{0}\}$ and have discussed with various observational results. Finite time past and future singularities in this model are also discussed. \end{abstract}
