Liouville%E2%80%93Green approximation theorem
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21: Bibliography G
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An extended class of orthogonal polynomials defined by a Sturm-Liouville problem.
J. Math. Anal. Appl. 359 (1), pp. 352–367.
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Superstring Theory: Introduction, Vol. 1.
2nd edition, Cambridge Monographs on Mathematical Physics, Cambridge University Press, Cambridge.
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Superstring Theory: Loop Amplitudes, Anomalies and Phenomenolgy, Vol. 2.
2nd edition, Cambridge Monographs on Mathematical Physics, Cambridge University Press, Cambridge.
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General form of the quantum-defect theory.
Phys. Rev. A 19 (4), pp. 1485–1509.
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Mathematics for the Analysis of Algorithms.
Progress in Computer Science, Vol. 1, Birkhäuser Boston, Boston, MA.
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22: 2.8 Differential Equations with a Parameter
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►In Case III has a simple pole at and is analytic at .
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►First we apply the Liouville transformation (§1.13(iv)) to (2.8.1).
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►In Case III the approximating equation is
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►For connection formulas for Liouville–Green approximations across these transition points see Olver (1977b, a, 1978).
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►For examples of uniform asymptotic approximations in terms of Whittaker functions with fixed second parameter see §18.15(i) and §28.8(iv).
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23: 3.8 Nonlinear Equations
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►For real functions the sequence of approximations to a real zero will always converge (and converge quadratically) if either:
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►Inverse linear interpolation (§3.3(v)) is used to obtain the first approximation:
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►Initial approximations to the zeros can often be found from asymptotic or other approximations to , or by application of the phase principle or Rouché’s theorem; see §1.10(iv).
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►For describing the distribution of complex zeros of solutions of linear homogeneous second-order differential equations by methods based on the Liouville–Green (WKB) approximation, see Segura (2013).
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24: 15.16 Products
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25: 1.9 Calculus of a Complex Variable
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DeMoivre’s Theorem
… ►Jordan Curve Theorem
… ►Cauchy’s Theorem
… ►Liouville’s Theorem
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…26: 3.7 Ordinary Differential Equations
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§3.7(iv) Sturm–Liouville Eigenvalue Problems
… ►The Sturm–Liouville eigenvalue problem is the construction of a nontrivial solution of the system …27: 18.38 Mathematical Applications
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§18.38(i) Classical OP’s: Numerical Analysis
►Approximation Theory
… ►For these results and applications in approximation theory see §3.11(ii) and Mason and Handscomb (2003, Chapter 3), Cheney (1982, p. 108), and Rivlin (1969, p. 31). … ►The basic ideas of Gaussian quadrature, and their extensions to non-classical weight functions, and the computation of the corresponding quadrature abscissas and weights, have led to discrete variable representations, or DVRs, of Sturm–Liouville and other differential operators. … ►
18.38.3
, , ,
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28: 1.15 Summability Methods
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►For and , the Riemann-Liouville fractional integral of order
is defined by
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