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Theory and Modern Applications

Table 1 Numerical approximations to the first four eigenvalues of problem (24)–(25) according to \(E_{\delta, \theta } ( z) =\sum_{k = 0}^{750}\frac{z^{k}}{\Gamma ( \delta k + \theta ) }\). Eigenvalues correspond to eigenfunction \(f ( 1 )\)

From: Comparative simulations for solutions of fractional Sturm–Liouville problems with non-singular operators

α

\(\lambda_{1}\)

\(\lambda_{2}\)

\(\lambda_{3}\)

\(\lambda_{4}\)

0.25

2.23271

2.25575

2.29206

2.39

0.5

4.65311

4.75576

4.95031

5.76011

0.6

6.89295

7.01201

7.08879

7.20048

0.8

26.6485

27.057

27.1119

27.3581

0.9

−27.0582

−21.8756

106.988

113.437