Figure 2From: Landweber iterative regularization method for identifying the unknown source of the time-fractional diffusion equation The exact and regularized terms given by the a posteriori parameter choice rule for Example 2 : (a) \(\pmb{\alpha=0.2}\) , (b) \(\pmb{\alpha=0.5}\) , (c) \(\pmb{\alpha=0.9}\) . Back to article page