Figure 4From: Adaptive control of multiple chaotic systems with unknown parameters in two different synchronization modes Synchronization errors \(\pmb{e_{11}}\) , \(\pmb{e_{12}}\) , \(\pmb{e_{13}}\) , \(\pmb{e_{14}}\) between drive system ( 3.5 ) and response system ( 3.6 ) in (a), and the time response of the adaptive vector parameters \(\pmb{{{a}_{1}},{{b}_{1}},{{c }_{1}},{{d}_{1}},{{r}_{1}},{{a}_{2}},{{b}_{2}},{{c }_{2}},{{d}_{2}} }\) in (b). Back to article page