An indirect master-slave configuration, in which two R?ssler systems areindirectlyconnected, is considered. Opposite to the classical case, in which the slave system is connected to the master through common signals, in the scheme discussed here the slave interacts to the master via a second order linear system. By using the Master Stability Function formalism, it is demonstrated that the onset of synchronization is enhanced when the interaction is indirect. Furthermore, the performance of the indirect master-slave scheme is experimentally validated by using electronic circuits, which emulate the chaotic dynamics of R?ssler system.
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