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On the de Sitter Space‐Time ‐ the Geometric Foundation of Inflationary Cosmology
Author(s) -
Schmidt HansJÜRgen
Publication year - 1993
Publication title -
fortschritte der physik/progress of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.2190410302
Subject(s) - cosmology , scale factor (cosmology) , friedmann equations , de sitter space , de sitter universe , physics , curvature , mathematical physics , de sitter invariant special relativity , cosmological constant , foundation (evidence) , space (punctuation) , theoretical physics , classical mechanics , universe , geometry , metric expansion of space , mathematics , philosophy , dark energy , quantum mechanics , law , linguistics , political science
We review on the main geometric properties of the space‐time of constant curvature which is the foundation of the inflationary cosmological model. We show e.g.: The spatially flat Friedmann model with exponentially increasing scale factor is only a local description for the de Sitter space‐time, whereas the closed Friedmann model can lead to a global description.