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Table 3 The maximum \(\pmb{L_{2}}\) errors and convergence orders for Example  2 with \(\pmb{h=1/1\text{,}000}\)

From: The error analysis of Crank-Nicolson-type difference scheme for fractional subdiffusion equation with spatially variable coefficient

α

Ï„

\(\boldsymbol {E_{L_{2}}}\)

Order( Ï„ )

1/3

1/20

4.5529e − 003

∗

1/40

1.8482e − 003

1.3007e + 000

1/80

7.4443e − 004

1.3119e + 000

1/160

2.9840e − 004

1.3189e + 000

0.5

1/20

2.4404e − 003

∗

1/40

8.9749e − 004

1.4431e + 000

1/80

3.2613e − 004

1.4604e + 000

1/160

1.1768e − 004

1.4706e + 000

2/3

1/20

1.1972e − 003

∗

1/40

4.0070e − 004

1.5791e + 000

1/80

1.3221e − 004

1.5997e + 000

1/160

4.3321e − 005

1.6097e + 000