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

Figure 3

Exact solution 𝑢(𝑥,0) and numerical solution for 𝜖=20% with the final time 𝑇=25 and 𝑚=59, 𝑁=59, and 𝑡₀=1𝑒−10.