CHINESE JOURNAL OF PHYSICS VOL. 40, NO. 3 JUNE 2002

Non-Static Spherically Symmetric Perfect Fluid Solutions

M. Sharif^1,2 and T. Iqbal<sup>2

1</sup>Department of Physics, Hanyang University, Seoul 133-791, Korea

²Department of Mathematics, Punjab University, Quaid-e-Azam Campus,

Lahore-54590, Pakistan
(Received May 18, 2001)

We investigate solutions of the Einstein field equations for the case of a non-static spherically symmetric perfect fluid using different equations of state. The properties of some exact spherically symmetric perfect fluid solutions which contain shear are obtained. We obtain three different solutions; out of these one turns out to be an incoherent dust solution and the other two are stiff matter solutions.

PACS. 04.20.jb - Exact solutions.

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