ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hit 1 - 1 | 1 hit

Sorting

Electronic Resource

Particle-Like Description for FRW Cosmologies (1998)

Lima, J. A. S. ; Moreira, J. A. M. ; Santos, J.

Springer

General relativity and gravitation 30 (1998), S. 425-434

add to mindlist on the mindlist

Details

ISSN: 1572-9532

Keywords: ISOTROPIC COSMOLOGICAL MODELS ; CLASSICAL MECHANICS

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We show that the dynamical behavior of the scale factor in FRW cosmologies with equation of state p = (γ - 1)ρ is formally equivalent to a classical particle under the action of a homogeneous potential V(q) = αqn, where α and n are constants. The relations γ(n) and ε(E,n), where ε is the curvature parameter and E is the total energy of the test particle, are established. It is shown that the same approach can be generalized to include a nonvanishing cosmological constant as well as to describe viscous models. A comparison is made between the Lagrangian and general relativistic possibilities.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1018858809324

Permalink

	Location	Call Number	Expected	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

hit 1 - 1 | 1 hit