OBSERVATIONAL COSMOLOGY AND NUMERICAL RELATIVITY
作者:
N.T. Bishop,
P. Haines,
期刊:
Quaestiones Mathematicae
(Taylor Available online 1996)
卷期:
Volume 19,
issue 1-2
页码: 259-274
ISSN:1607-3606
年代: 1996
DOI:10.1080/16073606.1996.9631838
出版商: Taylor & Francis Group
关键词: 83C05;83F05
数据来源: Taylor
摘要:
This paper brings together the theory of observational cosmology and the null-cone characteristic initial value problem (CIVP) of numerical relativity. A computer code is constructed which calculates the past behaviour of the Universe from input data that is, in principle, measurable. For practical reasons the code is limited to the case of axisymmetry without rotation. The construction of the code brings to light an interesting general point about observational cosmology. In a big-bang universe it is impossible, even in principle, to determine the state of the universe at early times. For the Einstein-de Sitter model this limit ist0/27, wheret0means now.
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