Kinematic Reconstruction of $\Lambda (t)$CDM Models

P. A. S. Guillen, J. F. Jesus, R. Valentim

In this work, we have \textbf{analysed} two kinematic parametrizations for $\Lambda (t)$CDM models, namely, the linear expansions $\Lambda (z)={\Lambda }_0+{\Lambda }_{1}z$ and $Q(z)=Q_0+Q_{1}z$, where $Q$ is the int…