Signature flips in time-varying $\hat{I}›(t)$ cosmological models with observational data

Yerlan Myrzakulov, M. Koussour, M. Karimov +1

In this study, we investigate signature flips within the framework of cosmological models featuring a time-varying vacuum energy term $\hat{I}›(t)$. Specifically, we consider the power-l…