标题： 宇宙学中爱因斯坦方程的重正化群方法 显示英文标题

标题： Renormalization Group Approach to Einstein Equation in Cosmology

摘要： 重正化群方法已被用于非线性偏微分方程长时间行为的分析，并在引力坍缩临界现象的研究中展示了其强大的作用。 在目前的工作中，我们将重正化群应用于宇宙学中的爱因斯坦方程，并详细分析球对称和非均匀尘埃充满的宇宙模型中尺度不变不动点附近的重正化群流。 显示英文摘要

摘要： The renormalization group method has been adapted to the analysis of the long-time behavior of non-linear partial differential equation and has demonstrated its power in the study of critical phenomena of gravitational collapse. In the present work we apply the renormalization group to the Einstein equation in cosmology and carry out detailed analysis of renormalization group flow in the vicinity of the scale invariant fixed point in the spherically symmetric and inhomogeneous dust filled universe model.