Electronic Journal of Differential Equations, Conference 01 (1998), pp. 1-9 Title: Holder solutions for the amorphous silicon system and related problems Authors: Walter Allegretto (Univ. of Alberta, Edmonton, Alberta, Canada) Yanping Lin (Univ. of Alberta, Edmonton, Alberta, Canada) Aihui Zhou (Institute of Systems Science, Beijing, China) Abstract: We present existence of solutions and other results for the partial differential equation system with memory which models amorphous silicon devices and related problems in ${\Bbb R}^3$. Our approach employs only classical estimates and Degree Theory; it shows the existence of $C^{\alpha,\alpha/2}$ solutions for some $\alpha>0$. In view of the mixed boundary conditions, this is the maximum regularity that can be expected. Published November 12, 1998. Math Subject Classifications: 35J60 Key Words: Reaction; diffusion; semiconductor; Holder continuoussolutions.