Figure 5From: 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. When \(0 \leq u_{1}\leq 0.8\), \(0 \leq u_{2}\leq 0.5\), and without control (i.e., \(u_{1}=u_{2}=0\)) with \(\mathbf{d}=1\) at \(\alpha =0.90\), and \(\Delta t=1\)Back to article page