Model of communities isolation at hierarchical modular networks
  The model of community isolation was extended to the case when individuals are randomly placed at nodes of hierarchical modular networks. It was shown that the average number of blocked nodes (individuals) increases in time as a power function, with the exponent depending on network parameters. The distribution of time when the first isolated cluster appears is unimodal, non-gaussian. The developed analytical approach is in a good agreement with the simulation data. 
Pawe{\l} Kondratiuk, Janusz A. Ho{\l}yst
physics.soc-ph cs.SI