Open AccessTHE STABILITY OF A KIND OF COSMOLOGICAL MODEL
Author(s) -
Yongjiu Wang,
Tang Zhi-Ming
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.1829
Subject(s) - cosmological constant , physics , perfect cosmological principle , cosmological model , lambda cdm model , stability (learning theory) , theoretical physics , cosmology , constant (computer programming) , zero (linguistics) , astrophysics , dark energy , programming language , linguistics , philosophy , machine learning , computer science
The stability of a kind of cosmological models is given. The variations of the cosmological model for parameters λ and k were discussed respectively. Near λ=0, the cosmological model is unstable with the change of λ, and near λ=β=0, the cosmological model is unstable with the change of k. So when we consider the stable cosmological model, we must consider the no-zero cosmological constant.