regular%20solutions
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1: 33.24 Tables
2: 33.23 Methods of Computation
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►The power-series expansions of §§33.6 and 33.19 converge for all finite values of the radii and , respectively, and may be used to compute the regular and irregular solutions.
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►Thus the regular solutions can be computed from the power-series expansions (§§33.6, 33.19) for small values of the radii and then integrated in the direction of increasing values of the radii.
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►This implies decreasing for the regular solutions and increasing for the irregular solutions of §§33.2(iii) and 33.14(iii).
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►§33.8 supplies continued fractions for and .
Combined with the Wronskians (33.2.12), the values of , , and their derivatives can be extracted.
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3: 33.3 Graphics
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§33.3(i) Line Graphs of the Coulomb Radial Functions and
► ► ► … ►§33.3(ii) Surfaces of the Coulomb Radial Functions and
…4: 33.2 Definitions and Basic Properties
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§33.2(i) Coulomb Wave Equation
… ►This differential equation has a regular singularity at with indices and , and an irregular singularity of rank 1 at (§§2.7(i), 2.7(ii)). … ►§33.2(ii) Regular Solution
… ►§33.2(iii) Irregular Solutions
… ►As in the case of , the solutions and are analytic functions of when . …5: 33.14 Definitions and Basic Properties
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§33.14(i) Coulomb Wave Equation
… ►Again, there is a regular singularity at with indices and , and an irregular singularity of rank 1 at . … ►§33.14(ii) Regular Solution
… ►§33.14(iii) Irregular Solution
… ►§33.14(iv) Solutions and
…6: 31.12 Confluent Forms of Heun’s Equation
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►Confluent forms of Heun’s differential equation (31.2.1) arise when two or more of the regular singularities merge to form an irregular singularity.
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►This has regular singularities at and , and an irregular singularity of rank 1 at .
►Mathieu functions (Chapter 28), spheroidal wave functions (Chapter 30), and Coulomb spheroidal functions (§30.12) are special cases of solutions of the confluent Heun equation.
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►This has a regular singularity at , and an irregular singularity at of rank .
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►This has one singularity, an irregular singularity of rank at .
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7: 16.21 Differential Equation
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16.21.1
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►With the classification of §16.8(i), when the only singularities of (16.21.1) are a regular singularity at and an irregular singularity at .
When the only singularities of (16.21.1) are regular singularities at , , and .
►A fundamental set of solutions of (16.21.1) is given by
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8: Bibliography I
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The zeros of regular Coulomb wave functions and of their derivatives.
Math. Comp. 29, pp. 878–887.
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The real roots of Bernoulli polynomials.
Ann. Univ. Turku. Ser. A I 37, pp. 1–20.
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Connection formulae for the fourth Painlevé transcendent; Clarkson-McLeod solution.
J. Phys. A 31 (17), pp. 4073–4113.
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9: 15.10 Hypergeometric Differential Equation
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