Existence, uniqueness and stability of the solutions to neutral stochastic functional differential equations with infinite delay

In this paper, we obtain the existence and uniqueness of solutions to neutral stochastic functional differential equations with infinite delay at phase space BC((-infinity, 0]; R-d) which denotes the family of bounded continuous R-d-value functions phi defined on (-infinity, 0] with norm parallel to phi parallel to = sup(-infinity<theta <= 0) vertical bar phi(theta)vertical bar under non-Lipschitz condition with Lipschitz condition being considered as a special case and a weakened linear growth condition. The solution is constructed by the successive approximation. Furthermore, we give the continuous dependence of solutions on the initial value by means of the Corollary of Bihari inequality. Crown Copyright (C) 2008 Published by Elsevier Inc. All rights reserved.