Figure 1From: Fractional optimal control in transmission dynamics of West Nile virus model with state and control time delay: a numerical approachThe approximate solutions of the fractional delay optimal control problem by using NSFDM and SFDM. When \(0 \leq u_{1}\leq 0.8\), \(0 \leq u_{2}\leq 0.5\), with \(\mathbf{d}=5\) and \(\alpha =0.90\), and \(\Delta t=0.5\)Back to article page