MULTIDIMENSIONAL COSMOLOGICAL WORLD MODELS AS 2-DIMENSIONAL DYNAMIC-SYSTEMS

被引：6
|
作者：
BIESIADA, M
SZYDLOWSKI, M
机构：
[1] Astronomical Observatory, Jagellonian University, 30-244 Kraków
来源：
PHYSICS LETTERS A | 1990年 / 145卷 / 8-9期
关键词：
D O I：
10.1016/0375-9601(90)90302-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the dynamics of two kinds of multidimensional cosmological models: (1) FRW (K=±1)×TD and (2) FRW (K=0)×SD, with the hydrodynamical energy-momentum tensor Tμv=diag(ρ{variant}, mρ{variant}, mρ{variant}, nρ{variant}, ..., nρ{variant}). It is shown that a full classification of these models on the two-dimensional phase-space is possible. Phase-portraits allow a simple discussion of various dynamical effects of extra dimensions. © 1990.
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页码：401 / 409
页数：9
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