摘要
研究了一类Einstein Kartan宇宙模型的稳定性 .分别讨论了宇宙模型对于参量λ和k的变化 .在λ=0附近 ,宇宙模型相对于λ的变化是不稳定的 ;在λ =β =0附近 ,宇宙对于k的变化也是不稳定的 .因此 ,在考虑合理的宇宙模型时必须考虑非零的宇宙项 .
The stability of a kind of cosmological models is given. The variations of the cosmological model for parameters lambda and kappa were discussed respectively. Near lambda = 0, the cosmological model is unstable with the change of lambda, and near lambda = beta = 0, the cosmological model is unstable with the change of kappa. So when we consider the stable cosmological model, we must consider the no-zero cosmological constant.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第10期1829-1832,共4页
Acta Physica Sinica
