科研之友
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摘要
In induced-matter theory, a 4D non-empty physical space-time is obtained from the 5D Ricci-flat one by setting the extra dimension coordinate equal to a constant. On the basis of this theory, we construct a 4D physical space-time by choosing a certain supersurface equation F(x(A)) = 0 (A runs over 0 similar to 4). It is shown that, the 4D two-fluid FRW cosmological model can be obtained from 5D flat space-time by specifying F(x(A)) = 0 as x(4) - x(0) = 0.
- 出版日期2006-2
- 单位郑州大学
