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The spread of viruses in human populations (e.g., SARS) or computer networks is closely related to the network's topological structure. In this paper, we study the problem of allocating limited control resources (e.g., quarantine or recovery resources) in these networks to maximize the speed at which the virus is eliminated, by exploiting the topological structure. This problem can be abstracted to that of designing diagonal K or D to minimize the dominant eigenvalue of one of the systemdoi:10.1109/cdc.2007.4434176 dblp:conf/cdc/WanRS07 fatcat:dsf5qf66ujbm3hmkjfmcdeoywm