GENERALIZED SCALING FOR MODELS WITH MULTIPLE ABSORBING STATES

At a continuous transition into a non-unique absorbing state, particle systems may exhibit non-universal critical behaviour, in apparent vio lation of hyperscaling. We propose a generalized scaling theory for dy namic critical behaviour at a transition to an absorbing state, which is capable of describing exponents which vary according to the initial configuration. The resulting hyperscaling relation is supported by si mulations of two lattice models.