Figure 2From: A modified kernel method for a time-fractional inverse diffusion problem The exact solution (ES) and its approximation solution (AS). \(\alpha=0.4\), \(x=0\) and (a) \(\varepsilon=0.00001\); (b) \(\varepsilon=0.0001\); (c) \(\varepsilon=0.001\); (d) \(\varepsilon=0.01\).Back to article page