ON THE ε COSMOLOGICAL PARAMETER

Serbian Astronomical Journal

article

Z. Mijajlovi´¹  N. Pejovi´c²  V. Mari´³ 

[1] State University of Novi Pazar, Department of Mathematics;Department of Astronomy, Faculty of Mathematics, University of Belgrade Studentski trg 16;Serbian Academy of Sciences and Arts

关键词: cosmological parameters;    large-scale structure of Universe;   

DOI  :  10.2298/SAJ1590025M

来源: Astronomical Observatory, Department of Astronomy, Belgrade

【 摘 要 】

On asymptotic solutions of Friedmann equations (Mijajlovi´c et al. 2012), the theory of regularly varying functions in the sense of Karamata is applied in an asymptotic analysis of solutions of Friedmann equations. As is well known, solutions of these equations are used to represent cosmological parameters. Therefore, according to the theory of regularly varying functions all cosmological parameters depend on a function ε(t) such that limt→∞ ε(t) = 0 and which appears in their integral representation. In this paper we derive a differential equation for the parameter ε(t), discuss its solutions and give some physical interpretations.

【 授权许可】

CC BY-NC-ND