Constrain the black hole interior with energy condition

主讲人：杨润秋

时间：2025-12-5  09:30 - 12:00

地点：广西数学研究中心W301

摘要：In this talk I will introduce our works about how to use energy condition to constrain the interior structures of static and stationary axisymmetric black holes. It shows that the number of their horizons can be strongly constrained by classic matters. With very general conditions, it proves that if the interior of the black hole satisfies strong energy condition, there is at most one non-degenerated inner horizon behind the event horizon; in addition, if the event horizon is degenerated, there exists no inner horizon. This result offers some universal restrictions on the number of horizons. Interestingly and importantly, it also suggests that classical matter not only promotes the formation of event horizon but also prevents the appearance of multiple horizons inside black holes.