摘要：The paper investigates the conditions for full and partial
synchronization in systems of coupled chaotic maps that include
the presence of a major element, that is, an element that
interacts with all the other elements of the system. We consider a
system which consists of two globally coupled populations of
one-dimensional maps that interact via a major element. The
presence of this element can induce synchronization in both of the
globally coupled populations even though they operate in different
states. If a parameter mismatch is introduced between two
populations of uncoupled maps, the presence of a major element is
found to provide for the existence of states in which peripheral
elements with different parameter values display similar dynamics.
