Behavior of $F(R)$ gravity around a crossing of the phantom divide

Abstract

We study a model of $F(R)$ gravity in which a crossing of the phantom divide can be realized. In particular, we demonstrate the behavior of $F(R)$ gravity around a crossing of the phantom divide by taking into account the presence of cold dark matter.

Comments: 18 pages, 10 figures, the version published in The Open Astronomy Journal, references added