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An optimal system and invariant solutions of dark energy models in cylindrically symmetric space-time

机译:圆柱对称时空中暗能量模型的最优系统和不变解

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摘要

In this paper, we derive some new invariant solutions of dark energy models in cylindrically symmetric space-time. To quantify the deviation of pressure from isotropy, we introduce three different time-dependent skewness parameters along the spatial directions. The matter source consists of dark energy which is minimally interacting with perfect fluid. We use the symmetry analysis method for solving the non-linear partial differential equations (NLPDEs), which is more powerful than the classical methods of solving NLPDEs. The geometrical and kinematical features of the models and the behaviour of the anisotropy of dark energy are examined in detail.
机译:在本文中,我们导出了圆柱对称时空中暗能量模型的一些新的不变解。为了量化压力与各向同性的偏差,我们沿空间方向引入了三个不同的时变偏度参数。物质源由暗能量组成,暗能量与完美流体的相互作用最小。我们使用对称分析方法来求解非线性偏微分方程(NLPDE),它比经典的求解NLPDE的方法更强大。详细检查了模型的几何和运动学特征以及暗能量各向异性的行为。

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