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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27814

    Title: Measure on a subspace of FRW solutions and "the flatness problem"of standardcosmology
    Authors: Cho, H. T.;Kantowski, R.
    Contributors: 淡江大學物理學系
    Date: 1994-11
    Issue Date: 2013-07-09 15:12:30 (UTC+8)
    Publisher: College Park: American Physical Society
    Abstract: We use the metric on the space of gravity fields given by DeWitt to construct a unique kinematic measure on the space of FRW simple fluids and show that when the mass parameter $\Omega$ is used as a coordinate this measure is singular at $\Omega = 1$. This singularity, combined with the time evolution of $\Omega$, distorts distributions of $\Omega$ values to be concentrated in the neighborhood of 1 at early times. It is a distorted distribution of $\Omega$ values that sometimes misleads the casual observer to conclude that $\Omega$ must be exactly equal to 1.
    Relation: Physical Review D (Particles and Fields) 50(10), pp.6144-6149
    DOI: 10.1103/PhysRevD.50.6144
    Appears in Collections:[物理學系暨研究所] 期刊論文

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