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Prog. Theor. Phys. Vol. 83 No. 3 (1990) pp. 491-498
Classification of Conformal Cosmological Models
Shin-ichi Tadaki,
Mitsue Den,*
Kouji Ohnishi**
and
Yoshiyuki Yamada
Department of Physics, Kyoto University, Kyoto 606
*Department of Physics, College of Liberal Arts and Science
Kyoto University, Kyoto 606
**Department of Physics, Tohoku University, Sendai 980
(Received October 31, 1989)
Abstract:
We investigate the general solutions of conformal cosmological models with spherical inhomogeneity. Einstein equations are simplified by virtue of the conformal symmetry and consist of scale factor depending only on time and radial coordinates. We obtain the solutions for various matter which are trace free, dust, isotropic and no-flow in the observer's rest frame. The importance of isotropy of the stress is also discussed.
URL :
http://ptp.ipap.jp/link?PTP/83/491/
DOI : 10.1143/PTP.83.491
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