Perturbative calculation of one-point functions of one-dimensional single-species reaction-diffusion systems
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Perturbations around autonomous one-dimensional single-species reaction-diffusion systems are investigated. It is shown that the parameter space corresponding to the autonomous systems is divided into two parts: In one part, the system is stable against the perturbations, in the sense that largest relaxation time of the one-point functions changes continuously with perturbations. In the other part, however, the system is unstable against perturbations, so that any small perturbation drastically modifies the large-time behavior of the one-point functions.
13 pages, 1 figure, LaTeX2e
13 pages, 1 figure, LaTeX2e