On differentiability of solutions with respect to parameters in state-dependent delay equations

In this paper we study differentiability of solutions with respect to parameters in state-dependent delay equations. In particular. we give sufficient conditions for differentiability of solutions in the W-1.p norm (1 less than or equal to p < infinity). In establishing our main results we make use of a version of the Uniform Contraction Principle for quasi-Banach spaces. (C) 1997 Academic Press.