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arXiv 1403.0109gr-qchep-phhep-th
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Lyra流形中具有有效变$Λ$ -项的宇宙玩具模型

Toy models of Universe with an Effective varying $Λ$-Term in Lyra Manifold

Martiros Khurshudyan

摘要:

我们感兴趣的是在相互作用的精髓DE模型存在的宇宙的几个玩具模型的研究。模型被认为是在宇宙学与有效的变化$Λ$ -项天琴座流形。本文讨论的唯象模型的动机是获得相应的模型来描述和理解宇宙的加速膨胀的后期演化阶段。模型的现象学由$Λ(t)$($8 πG =c =1$)的现象学形式描述。关于数学上的困难,我们讨论了结果的数值和图形。得到的结果给我们希望,提出的模型可以作为良好的模型,为旧宇宙和观测数据的良好协议。

英文摘要:

We are interested by the study of several toy models of the Universe in presence of interacting quintessence DE models. Models are considered in the cosmology with an Effective varying $Λ$-Term in Lyra Manifold. The motivation of the phenomenological models discussed in this paper is to obtain corresponding models to describe and understand an accelerated expansion of the Universe for the later stage of evolution. Phenomenology of the models describes by the phenomenological forms of $Λ(t)$ ($8 πG =c =1$). Concerning to the mathematical hardness we discuss results numerically and graphically. Obtained results give us hope that proposed models can work as good models for old Universe and in good agreement with observational data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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