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Theory and Modern Applications

Figure 2 | Advances in Difference Equations

Figure 2

From: Solving the Riesz–Feller space-fractional backward diffusion problem by a generalized Tikhonov method

Figure 2

At \(t=0.6\) and 0, \(\alpha=1\), \(s=2\), \(\gamma=0.1\), \(\varepsilon=0.01\): Exact and regularized solutions for different θ. Point: exact solution; Star: regularized solution with \(\theta=0\) and \(\mu=1.8960\text{e}{-}04\); Loop: \(\theta=0.01\) and \(\mu=1.9180\text{e}{-}04\); Plus: \(\theta=0.1\) and \(\mu=2.0983\text{e}{-}04\); Diamond: \(\theta=-0.01\) and \(\mu=1.9022\text{e}{-}04\); Multiplication: \(\theta=-0.1\) and \(\mu=1.9575\text{e}{-}04\)

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