Kantowski--Sachs cosmological models as big-bang models

Journal Article · Sat Jun 01 04:00:00 EDT 1985 · J. Math. Phys. (N.Y.); (United States)

DOI:https://doi.org/10.1063/1.526935· OSTI ID:5771910

Weber, E

In the presence of a nonzero cosmological constant ..lambda.., we classify the anisotropic cosmological models of the Kantowski--Sachs type by means of the quantities epsilon/sup 2//sub 0/, q/sub 0/, summation/sub 0/ corresponding, respectively, to the relative root-mean-square deviation from isotropy, the deceleration parameter, and the density parameter of the perfect fluid at a given time t = t/sub 0/. We obtain for ..lambda..>0 a set of big-bang models of zero measure as well as a set of cosmological models of nonzero measure evolving toward the de Sitter solution.

• Research Organization: Universite Catholique de Louvain, Institut du Physique Theorique, Chemin de Cyclotron, 2, B-1348 Louvain-la-Neuve, Belgium and Universite du Burundi, B. P. 2700, Bujumbura, Burundi
• OSTI ID: 5771910
• Journal Information: J. Math. Phys. (N.Y.); (United States), Journal Name: J. Math. Phys. (N.Y.); (United States) Vol. 26:6; ISSN JMAPA
• Country of Publication: United States
• Language: English

Related Subjects

657003* -- Theoretical & Mathematical Physics-- Relativity & Gravitation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ANISOTROPY
ASYMPTOTIC SOLUTIONS
BOUNDARY CONDITIONS
CLASSIFICATION
CONSERVATION LAWS
COSMOLOGICAL CONSTANT
COSMOLOGICAL MODELS
DENSITY
EINSTEIN FIELD EQUATIONS
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
FLUIDS
GENERAL RELATIVITY THEORY
MATHEMATICAL MODELS
METRICS
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SINGULARITY
THREE-DIMENSIONAL CALCULATIONS
TIME DEPENDENCE