Synchronized states and multistability in a random network of coupled discontinuous maps

• Published in: Chaos (Woodbury, N.Y.) Vol. 25; no. 8; p. 083114
• Main Authors: Nag, Mayurakshi, Poria, Swarup
• Format: Journal Article
• Language: English
• Published: United States 01.08.2015
• ISSN: 1089-7682
• DOI: 10.1063/1.4928740

The synchronization behavior of coupled chaotic discontinuous maps over a ring network with dynamic random connections is reported in this paper. It is observed that random rewiring stabilizes one of the two strongly unstable fixed points of the local map. Depending on initial conditions, the network synchronizes to different unstable fixed points, which signifies the existence of synchronized multistability in the complex network. Moreover, the length of discontinuity of the local map has an important role in generating windows of different synchronized fixed points. Synchronized fixed point and synchronized periodic orbits are found in the network depending on coupling strength and different parameter values of the local map. We have identified the existence of period subtracting bifurcation with respect to coupling strength in the network. The range of coupling strength for the occurrence of synchronized multistable spatiotemporal fixed points is determined. This range strongly depends upon the dynamic rewiring probability and also on the local map.