A Discretized Tikhonov Regularization Method for a Fractional Backward Heat Conduction Problem

Figure 4

The relative error versus order 𝛾 for Example 1 with 𝑇=0.5, 𝑚=59, 𝑁=59, and 𝑡₀=1𝑒−10 for noise 𝜖=1%.