Recently, few cosmological models with additional non-Riemannian volume form(s) have been proposed.
In this article we use Supernovae type Ia experimental data to test one of these models which provides a unified description of both dark energy via dynamically generated cosmological constant and dark matter as a "dust" fluid due to a hidden nonlinear Noether symmetry.
It turns out that the model allows various scenarios of the future Universe evolution and in the same time perfectly fits contemporary observational data.
Further, we investigate the influence of an additional inflaton field with a step like potential.
Cosmological solutions from models with unified dark energy and dark matter and with inflaton field · Around
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