Abstract

In this Letter we have studied a closed universe which a holographic energy on the brane whose energy density is described by ? (H) = 3 c2 H2 and we obtain an equation for the Hubble parameter. This equation gave us different physical behavior depending if c2 > 1 or c2 < 1 against of the sign of the brane tension. © 2008 Elsevier B.V. All rights reserved.