In this paper, we get the fact that generalized Roper-Suffridge operators act on spirallike mapping of type α on different domains is invariable, these results
This paper deals with the pole placement of the singular system E·x = Ax(t) + Dx(t - (r)) + Bu,y =Cx,where x ∈ Rn, u ∈ Rm, and y ∈ Rn are its state, control