Pure kinetic k-essence as the cosmic speed-up

Abstract

In this paper, we consider three types of k-essence. These k-essence models were presented in the parametric forms. The exact analytical solutions of the corresponding equations of motion are found. It is shown that these k-essence models for the presented solutions can give rise to cosmic acceleration.

Comments: 10 pages, typos corrected, main results remain the same, minor changes to match IJTP accepted version