GLOBAL AND LOCAL-CONTROL OF SPATIOTEMPORAL CHAOS IN COUPLED MAP LATTICES

We present a simple method, using constant pinnings, to suppress spati otemporal chaos and achieve global control in coupled map lattice mode ls under different situations, e.g., for uniform pinning, nonuniform p inning with regular or random distributions, and lattices with spatial heterogeneity in local dynamics and coupling strength. The method is easy to implement and does not require any a priori information of the system dynamics or explicit changes in its parameters. This method ca n also be used for local control of spatiotemporal dynamics, an aspect that has crucial importance in many natural systems.