Noether Symmetry Approach for Dirac-Born-Infeld Cosmology
Abstract
We consider the Noether Symmetry Approach for a cosmological model derived from a tachyon scalar field T with a Dirac-Born-Infeld Lagrangian and a potential V(T). Furthermore, we assume a coupled canonical scalar field φ with an arbitrary interaction potential B(T,φ). Exact solutions are derived consistent with the accelerated behavior of cosmic fluid.
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