Figure 1From: The existence of nonnegative solutions for a nonlinear fractional q-differential problem via a different numerical approachGraphical representation of \(\Vert \mathcal{I}_{q}^{ \sigma -1} [g_{i}] \Vert _{L^{1}}\) for \(q=\frac{1}{5}\), \(\frac{1}{2}\), \(\frac{7}{8}\) in Example 4.1Back to article page