Mixmaster cosmological model in theories of gravity with a quadratic Lagrangian

Details Mixmaster cosmological model in theories of gravity with a quadratic Lagrangian Mixmaster cosmological model in theories of gravity with a quadratic Lagrangian

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.2187b&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 8, 15 April 1989, pp.2187-2191

Physics

18

Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity

Scientific paper

We use the method of matched asymptotic expansions to examine the behavior of the vacuum Bianchi type-IX mixmaster universe in a gravity theory derived from a purely quadratic gravitational Lagrangian. The chaotic behavior characteristic of the general-relativistic mixmaster model disappears and the asymptotic behavior is of the monotonic, nonchaotic form found in the exactly soluble Bianchi type-I models of the quadratic theory. The asymptotic behavior far from the singularity is also found to be of monotonic nonchaotic type.

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