报告题目：Cascading Failures and Recovery in Complex Networks
报告人：Professor Shlomo Havlin, Bar-Ilan University, Israel
报告时间：2018年10月17日（周三）上午10:00
报告地点：敬文图书馆西报告厅
邀请人：田立新教授
摘要：A framework for studying the vulnerability and the recovery of networks and interdependent networks will be presented. In interdependent networks, when nodes in one network fail, they cause dependent nodes in other networks to also fail. This may happen recursively and can lead to a cascade of failures and to a sudden fragmentation of the system. I will present analytical solutions for the critical thresholdsand the giant component of a network of n interdependent networks.I will show, that the general theory has many novel features that are not present in the classical network theory. When recovery of components is possible global spontaneous failure and recovery of the networks as well as hysteresis phenomena occur. The theory suggests an optimal repair strategy for a system of systems.I will also show that interdependent networks embedded in space aresignificantly more vulnerable compared to non-embedded networks. In particular, small localized attacks of zero fraction may lead to cascading failures and catastrophic consequences.