Guest Speaker: Prof. Zhu Shengzhi (Beijing JiaoTong University, China)

Time: 2014-09-12, 11:00 - 12:00
Location: Room 1004, the Center of Student Activity


Abstract:
      Does the dark matter constitute as much of the universe as claimed? In this talk, we will present some mathematic models in which M(r) can be much smaller, while the rotation velocity can be much larger. So, searching for dark matter in some sense is searching for a mathematic error.