INTERMITTENCY INHIBITED BY TRANSPORT - AN EXACTLY SOLVABLE MODEL

Transport is incorporated in a discrete-time stochastic model of a system undergoing autocatalytic reactions of the type A --> 2A and A --> 0, whose population field is known to exhibit spatiotemporal intermittency. The temporal evolution is exactly solved, and it is shown that if the transport process is strong enough, intermittency is inhibited. This inhibition is nonuniform, in the sense that, as transport is strengthened, low-order population moments are affected before the high-order ones. Numerical simulations are presented to support the analytical results.