标题： 具有线性状态方程和未来奇点的Kantowski-Sachs宇宙 显示英文标题

标题： Brane Kantowski-Sachs Universe with Linear Equation of State and Future Singularity

摘要： 我们研究了五维反德西特（AdS）bulk空间的膜Kantowski-Sachs宇宙，并且满足线性状态方程 $p=(\gamma -1)\rho +p_{0}$，其中 $ \gamma,\:p_{0}$ 是参数。 在此框架下，我们讨论了膜Kantowski-Sachs宇宙学，并将其与爱因斯坦理论中的标准Kantowski-Sachs宇宙学进行了比较，针对某些特定的物质选择进行了分析。 对于能量和压力之间几种特定关系的选择，早期尺度因子的行为被确定。 结果显示，对于某些物质选择，膜Kantowski-Sachs宇宙学可能迅速变得各向同性。 我们还通过两种理论中的撕裂或奇点讨论了Kantowski-Sachs宇宙模型的宇宙命运。 显示英文摘要

摘要： We consider the brane Kantowski-Sachs universe when bulk space is five dimensional anti-de Sitter obeying a linear equation of state of the form $p=(\gamma -1)\rho +p_{0}$, where $ \gamma,\:p_{0}$ are a parameters. In this framework we discuss the brane Kantowski-Sachs cosmology and compare it with standard Kantowski-Sachs cosmology in Einstein theory for some specific matter choice. For several specific choice of relation between energy and pressure, the behavior of the scale factors at early time is found. It is shown that the brane Kantowski-Scahs cosmology may quickly become isotropic for some choices of matter. We also discuss the universe fate of Kantowski-Sachs cosmological model by means of the rip or singularity in both the theories.