Department of Engineering Physics, Chubu University, Kasugai, Aichi 487, Japan
Keywords: Lifetime, Eden Model, Growth Model, Epidemics
Abstract. We have assumed that the elements in growing substances described by the Eden model and DLA are active only for a finite period. The patterns obtained in a modified Eden model and a modified DLA where the lifetime is finite are changed to the self avoiding walk. We have found a universal behavior in both models with lifetime.