Heun equation
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11: 31.16 Mathematical Applications
§31.16 Mathematical Applications
►§31.16(i) Uniformization Problem for Heun’s Equation
… ►It describes the monodromy group of Heun’s equation for specific values of the accessory parameter. … ►
31.16.3
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12: 31.6 Path-Multiplicative Solutions
§31.6 Path-Multiplicative Solutions
►A further extension of the notation (31.4.1) and (31.4.3) is given by …13: 31.8 Solutions via Quadratures
§31.8 Solutions via Quadratures
… ►Here is a polynomial of degree in and of degree in , that is a solution of the third-order differential equation satisfied by a product of any two solutions of Heun’s equation. …Lastly, , , are the zeros of the Wronskian of and . … ►For , these solutions reduce to Hermite’s solutions (Whittaker and Watson (1927, §23.7)) of the Lamé equation in its algebraic form. …For more details see Smirnov (2002). …14: 31.4 Solutions Analytic at Two Singularities: Heun Functions
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►The eigenvalues satisfy the continued-fraction equation
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15: 31.11 Expansions in Series of Hypergeometric Functions
§31.11 Expansions in Series of Hypergeometric Functions
… ►Let be any Fuchs–Frobenius solution of Heun’s equation. … ►Every Fuchs–Frobenius solution of Heun’s equation (31.2.1) can be represented by a series of Type I. … ►§31.11(v) Doubly-Infinite Series
… ►16: 31.3 Basic Solutions
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§31.3(i) Fuchs–Frobenius Solutions at
… ►§31.3(ii) Fuchs–Frobenius Solutions at Other Singularities
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31.3.10
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31.3.11
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§31.3(iii) Equivalent Expressions
…17: Bibliography E
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Integral equations for Heun functions.
Quart. J. Math., Oxford Ser. 13, pp. 107–112.
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Certain expansions of solutions of the Heun equation.
Quart. J. Math., Oxford Ser. 15, pp. 62–69.
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18: 29.2 Differential Equations
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►For the Weierstrass function see §23.2(ii).
►Equation (29.2.10) is a special case of Heun’s equation (31.2.1).
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19: Bibliography T
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Hyperspherical elliptic harmonics and their relation to the Heun equation.
Phys. Rev. A 63 (032510), pp. 1–8.
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20: Bibliography F
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Asymptotics of the spectrum of the Heun equation and of Heun functions.
Izv. Akad. Nauk SSSR Ser. Mat. 55 (3), pp. 631–646 (Russian).
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