Friedmann方程的动力学研究
A Dynamical Study of the Friedmann Equations
摘要:
宇宙学对学生来说是一门很有吸引力的学科,但如果不知道广义相对论,通常很难处理。在这篇文章中,我们首先回顾了弗里德曼方程的牛顿推导,它支配着我们宇宙的动力学,并讨论了这种推导的有效性。然后,我们研究宇宙演化方程的动力系统。这总结了我们宇宙的不同行为,并能够解决一些宇宙学问题。
英文摘要:
Cosmology is an attracting subject for students but usually difficult to deal with if general relativity is not known. In this article, we first recall the Newtonian derivation of the Friedmann equations which govern the dynamics of our universe and discuss the validity of such a derivation. We then study the equations of evolution of the universe in terms of a dynamical system. This sums up the different behaviors of our universe and enables to address some cosmological problems.
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。