Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan
(Received April 19, 2000; Accepted May 19, 2000)
Keywords: Sierpinski Gasket, Excitable Media, Reaction-Diffusion System, Spatio-Temporal Pattern
Abstract. In our previous papers, we have shown by computer simulations that a Sierpinski gasket pattern appears in a Bonhoffer-van der Pol type reaction diffusion system. In this paper, we show another class of regular self-similar structure which is found in four different excitable reaction diffusion systems. This result strongly implies that the existence of the self-similar spatio-temporal evolution is universal in excitable reaction-diffusion media.