THE STABILITY OF A KIND OF COSMOLOGICAL MODEL | Zendy

Yongjiu Wang | Zendy; Zhiming Tang | Zendy

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THE STABILITY OF A KIND OF COSMOLOGICAL MODEL

Author(s) -

Yongjiu Wang,

Zhiming Tang

Publication year - 2001

Publication title -

acta physica sinica

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.

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