Skip to main content

Theory and Modern Applications

Table 1 The \(L_{\infty }\), \(L_{2}\) errors and temporal convergence orders with \(h = 1/1000\) for Example 1

From: A high-order numerical scheme using orthogonal spline collocation for solving the two-dimensional fractional reaction–subdiffusion equation

α

τ

\(L_{\infty }\) error

Convergence order

\(L_{2}\) error

Convergence order

0.1

\(\frac{1}{10}\)

6.1855e−007

 

4.2944e−007

 

\(\frac{1}{20}\)

7.6955e−008

3.0068

5.3427e−008

3.0068

\(\frac{1}{40}\)

9.5964e−009

3.0034

6.6625e−009

3.0034

\(\frac{1}{80}\)

1.2013e−009

2.9979

8.3402e−010

2.9979

0.3

\(\frac{1}{10}\)

1.8656e−006

 

1.2958e−006

 

\(\frac{1}{20}\)

2.2978e−007

3.0213

1.5960e−007

3.0213

\(\frac{1}{40}\)

2.8517e−008

3.0104

1.9807e−008

3.0104

\(\frac{1}{80}\)

3.5512e−009

3.0054

2.4666e−009

3.0054

0.5

\(\frac{1}{10}\)

2.8278e−006

 

1.9657e−006

 

\(\frac{1}{20}\)

3.4372e−007

3.0404

2.3893e−007

3.0404

\(\frac{1}{40}\)

4.2395e−008

3.0193

2.9470e−008

3.0193

\(\frac{1}{80}\)

5.2617e−009

3.0103

3.6576e−009

3.0103

0.7

\(\frac{1}{10}\)

2.9898e−006

 

2.0810e−006

 

\(\frac{1}{20}\)

3.5699e−007

3.0661

2.4846e−007

3.0662

\(\frac{1}{40}\)

4.3664e−008

3.0314

3.0389e−008

3.0314

\(\frac{1}{80}\)

5.4024e−009

3.0148

3.7599e−009

3.0148

0.9

\(\frac{1}{10}\)

1.6262e−006

 

1.1342e−006

 

\(\frac{1}{20}\)

1.8607e−007

3.1276

1.2972e−007

3.1282

\(\frac{1}{40}\)

1.8607e−007

3.1276

1.2972e−007

3.1282

\(\frac{1}{80}\)

2.7640e−009

3.0228

1.9267e−009

3.0229

0.98

\(\frac{1}{10}\)

5.1376e−007

 

3.5984e−007

 

\(\frac{1}{20}\)

4.4162e−008

3.5402

3.0819e−008

3.5455

\(\frac{1}{40}\)

5.2578e−009

3.0703

3.6683e−009

3.0706

\(\frac{1}{80}\)

6.4300e−010

3.0316

4.4857e−010

3.0317